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Rohde & Schwarz R&S NRP, Operating Manual

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R&S NRP

Annex: Remote Control - Commands

1144.1400.12

Annex - I.3

E-2

Processing the results of two sensors

The R&S NRP offers measurement commands for processing the results of two sensors. The
calculated result can also be partly referenced to a stored reference value.

The measurement commands are obtained by adding one of the following keywords:

:DIFF

(difference)

:DIFF:REL

(difference with reference value)

:RAT

(ratio)

:RAT:REL

(ratio with reference value)

:SWR

(standing wave ratio)

:RLOS

(return loss)

:REFL

(reflection coefficient)

The list of parameters is modified for these commands since two sensors have to be entered in the

<source_list>

.

Example:

MEAS:RAT DEF,3,(@1),(@4)

A CALCulate block is used for processing the measured values. Each CALCulate block has two input
channels called the primary and secondary channel. In the above example, the primary channel is
assigned sensor 1 and the secondary channel sensor 4 via the 

<source_list>

. The measurement

result is the ratio of the results from sensors 1 and 4.

Example:

MEAS:SWR DEF,2,(@1),(@2)

It is assumed that sensor 1 delivers the forward power of a wave and sensor 2 the reflected power of a
wave. The measurement result represents the SWR of the two power values:

( ) ( )

( ) ( )

1

/@

/

2

@

1

1

/@

/

2

@

1

−

+

=

P

Note that the unit is automatically set to percent (refer to Selecting the output unit for measured values).

Summary of Contents for R&S NRP

Page 1: ...1144 1400 12 04 1 Test and Measurement Division Operating Manual Power Meter R S NRP 1143 8500 02 Printed in the Federal Republic of Germany ...

Page 2: ...1144 1400 12 04 2 Dear Customer R S is a registered trademark of Rohde Schwarz GmbH Co KG Trade names are trademarks of the owners ...

Page 3: ...arged If the battery is fully discharged the R S NRP automatically switches off to prevent any damage to the battery by over discharging In this case the battery should be recharged as soon as possible The charge status of the battery is displayed in the Battery dialog window and symbolically in every expanded window The Battery dialog window also provides information about the battery s remaining...

Page 4: ...self discharging an R S NRP that is equipped with the R S NRP B3 option should not be stored for more than three months without being connected to the AC supply Caution The performance of a Smart Battery may be manufacturer specific Only the original battery will ensure correct functioning and a charging functionality that prolongs the life of the option The safety test marks lose their validity i...

Page 5: ...e beginning the faster the calibration cycle is performed Calibration itself takes place at the end of the discharging process During the calibration cycle or at least until the end of the discharging phase the R S NRP should remain connected to the AC supply and should always be on Otherwise the calibration counter is not calibra ted which means that the warning will be displayed again when the R...

Page 6: ...bed on the following pages Ethernet For remote control via a TCP IP based LAN the R S NRP can be fitted with an optional 10 100BaseT Ethernet interface option R S NRP B4 The socket is located on the rear panel of the R S NRP Via this interface a controller can remote control the R S NRP by means of the power meter s SCPI commands using the VXI11 protocol TCP IP instrument protocol specification ve...

Page 7: ...ement devices in a host computer via a single VXI11 remote control connection A link is then set up to each logical device It is also possible to set up several links to one logical device provided that several servers are running on the network instrument host or a network instrument client is being served by several controllers To prevent problems caused by several controllers simultaneously acc...

Page 8: ... and tells the client at which ports channel services can be addressed For this reason it is important that any firewalls or routers between the client and the R S NRP enable free access from the controller to the R S NRP core and abort channels and vice versa interrupt channel As the ports for the channels are dynamically assigned reliable information regarding the port numbers used cannot be pro...

Page 9: ... channel it is not serialized with other commands but goes directly to the device and is therefore preferable device_remote core Changes the network instrument device to the remote state device_local core Changes the network instrument device to the local state device_lock core LLO local lock out The keyboard of the network instrument device is locked device_unlock core Cancels the LLO state devic...

Page 10: ... can be implemented via USB As with remote control via VXI11 the use of a VISA distribution that must include a USBTMC driver is recommended for remote control via USB The VISA resource identifier used to identify a USBTMC device has the following format USB vendor ID product ID serial number INSTR vendor ID 0x0aad product ID 0x001b serial number The serial number is a string that can be found in ...

Page 11: ...ity List of R S Representatives Tabbed Divider 1 Chapter 1 Putting into Operation 2 Chapter 2 Getting Started 3 Chapter 3 Operation 4 Chapter 4 Functional Description 5 Chapter 5 Remote Control Basics 6 Chapter 6 Remote Control Commands 7 Chapter 7 for future extensions 8 Chapter 8 Maintenance 9 Chapter 9 Error Messages 10 Chapter 10 for future extensions ...

Page 12: ...tory environments or in the field and must not be used in any way that may cause personal injury or property damage You are responsible if the product is used for an intention other than its designated purpose or in disregard of the manufacturer s instructions The manufacturer shall assume no responsibility for such use of the product The product is used for its designated purpose if it is used in...

Page 13: ...or unassociated documentation can result in misinterpretations and thus contribute to personal injury or material damage Basic safety instructions 1 The product may be operated only under the operating conditions and in the positions specified by the manufacturer Its ventilation must not be obstructed during operation Unless otherwise specified the following requirements apply to Rohde Schwarz pro...

Page 14: ...accordingly 9 In the case of products of safety class I with movable power cord and connector operation is permitted only on sockets with earthing contact and protective earth connection 10 Intentionally breaking the protective earth connection either in the feed line or in the product itself is not permitted Doing so can result in the danger of an electric shock from the product If extension cord...

Page 15: ...properly replaced this can cause an explosion warning lithium cells Replace the battery or storage battery only with the matching Rohde Schwarz type see spare parts list Batteries and storage batteries are hazardous waste Dispose of them only in specially marked containers Observe local regulations regarding waste disposal Do not short circuit batteries or storage batteries 28 Please be aware that...

Page 16: ...na persona cosa pueda ser dañada El uso del producto fuera de sus fines definidos o despreciando las informaciones de seguridad del fabricante queda en la responsabilidad del usuario El fabricante no se hace en ninguna forma responsable de consecuencias a causa del maluso del producto Se parte del uso correcto del producto para los fines definidos si el producto es utilizado dentro de las instrucc...

Page 17: ...definición Por eso se debera tener en cuenta que las palabras de señal aquí descritas sean utilizadas siempre solamente en combinación con la correspondiente documentación y solamente en combinación con el producto correspondiente La utilización de las palabras de señal en combinación con productos o documentaciones que no les correspondan puede llevar a malinterpretaciones y tener por consecuenci...

Page 18: ... En vista a la protección de la vida en desarrollo deberían ser protegidas personas embarazadas debidamente También las personas con un bypass pueden correr peligro a causa de la radiación electromagnética El empresario está comprometido a valorar y señalar areas de trabajo en las que se corra un riesgo de exposición a radiaciones aumentadas de riesgo aumentado para evitar riesgos 7 La utilización...

Page 19: ...n y la conexión deberán ser efecutadas por un electricista especializado 20 En caso de que los productos que son instalados fijamente en un lugar sean sin protector implementado autointerruptor o similares objetos de protección deberá la toma de corriente estar protegida de manera que los productos o los usuarios estén suficientemente protegidos 21 Por favor no introduzca ningún objeto que no esté...

Page 20: ...jemplo paredes y estantes 31 Las asas instaladas en los productos sirven solamente de ayuda para el manejo que solamente está previsto para personas Por eso no está permitido utilizar las asas para la sujecion en o sobre medios de transporte como por ejemplo grúas carretillas elevadoras de horquilla carros etc El usuario es responsable de que los productos sean sujetados de forma segura a los medi...

Page 21: ...modernmethodsavailable This product was developed manufac tured and tested in compliance with our quality management system standards The Rohde Schwarz quality manage ment system is certified according to stan dards such as ISO9001 and ISO14001 Certificat de qualité Cher client Vous avez choisi d acheter un produit Rohde Schwarz Vous disposez donc d un produit fabriqué d après les métho des les pl...

Page 22: ... 02 Thermal Power Sensor complies with the provisions of the Directive of the Council of the European Union on the approximation of the laws of the Member States relating to electrical equipment for use within defined voltage limits 73 23 EEC revised by 93 68 EEC relating to electromagnetic compatibility 89 336 EEC revised by 91 263 EEC 92 31 EEC 93 68 EEC Conformity is proven by compliance with t...

Page 23: ...response nsf newsletterpreselection Sie erhalten dann regelmäßig Informationen über Rohde Schwarz Produkte Ihrer Wahl über Firmware Erweiterungen neue Teiber und Applikationsschriften Should you have any technical questions concerning this Rohde Schwarz product please contact the hotline of Rohde Schwarz Vertriebs GmbH Support Center Our hotline team will answer your questions and find solutions t...

Page 24: ...309 Hamburg Postfach 60 22 40 D 22232 Hamburg 49 40 63 29 00 0 49 40 630 78 70 Zweigniederlassung Mitte Geschäftsstelle Köln Niederkasseler Straße 33 D 51147 Köln Postfach 900 149 D 51111 Köln 49 2203 807 0 49 2203 807 650 Zweigniederlassung Süd Geschäftsstelle München Mühldorfstraße 15 D 81671 München Postfach 80 14 69 D 81614 München 49 89 41 86 95 0 49 89 40 47 64 Zweigniederlassung Süd Geschäf...

Page 25: ... 357 24 42 46 21 hinis logos cy net Cyprus ROHDE SCHWARZ Praha s r o Hadovka Office Park Evropská 33c 16000 Praha 6 420 2 24 31 12 32 420 2 24 31 70 43 office rscz rohde schwarz com Czech Republic ROHDE SCHWARZ DANMARK A S Ejby Industrivej 40 2600 Glostrup 45 43 43 66 99 45 43 43 77 44 Denmark REPRESENTACIONES MANFRED WEINZIERL Vía Láctea No 4 y Via Sta Inés P O Box 17 22 20309 1722 Cumbayá Quito ...

Page 26: ...o com jo Jordan ROHDE SCHWARZ Kazakhstan Representative Office Almaty Pl Respubliki 15 480013 Almaty 7 32 72 63 55 55 7 32 72 63 46 33 RS Kazakhstan RUS Rohde Schwarz com Kazakhstan Excel Enterprises Ltd Dunga Road P O Box 42 788 Nairobi 254 2 55 80 88 254 2 54 46 79 Kenya ROHDE SCHWARZ Korea Ltd 83 29 Nonhyun Dong Kangnam Ku Seoul 135 010 82 2 514 45 46 82 2 514 45 49 sales rskor rohde schwarz co...

Page 27: ...Pty Ltd Cape Town Branch Unit G9 Centurion Business Park Bosmandam Road Milnerton Cape Town 7441 27 21 555 36 32 27 21 555 42 67 unicm protea co za South Africa ROHDE SCHWARZ ESPANA S A Salcedo 11 28034 Madrid 34 91 334 10 70 34 91 329 05 06 rses rses rohde schwarz com Spain LANKA AVIONICS 658 1 1 Negombo Road Mattumagala Ragama 94 1 95 66 78 94 1 95 83 11 lankavio sltnet lk Sri Lanka SolarMan Co ...

Page 28: ...acomms rsa rohde schwarz com USA Rohde Schwarz Inc Marketing Support Center T M Equipment 2540 SW Alan Blumlein Way M S 58 925 Beaverton OR 97077 0001 1 503 627 26 84 1 503 627 25 65 info rsa rohde schwarz com USA Rohde Schwarz Inc Systems EMI Products 8080 Tristar Drive Suite 120 Irving Texas 75063 1 469 713 53 00 1 469 713 53 01 info rsa rohde schwarz com USA EQUILAB TELECOM C A Centro Seguros L...

Page 29: ...on 1 1 Unpacking the meter 1 1 Setting up the meter 1 2 Front and rear views 1 3 Front panel 1 3 Rear panel 1 5 Installation in a 19 rack 1 7 AC supply voltage 1 7 AC supply fuses 1 7 EMC 1 7 Switching the meter on off 1 8 Welcome screen and function test 1 8 Resetting and setting brightness and contrast 1 10 ON state 1 10 Preset 1 11 ...

Page 30: ...to operation ensure that the sensor inputs are not overloaded the meter s outputs are not overloaded or wrongly connected the ventilation holes are not obstructed The meter may be damaged if these precautions are not observed Unpacking the meter When you have removed the meter from its packing check that nothing is missing using the delivery note and the accessory lists If there is any damage cont...

Page 31: ...stalled in a rack it should be set up so that the viewing angle for the display is optimal The carrying handle can be locked in a variety of positions to act as a stand To adjust the handle pull the two side pieces of the handle outwards so that the handle can be rotated The handle locks at angles which are multiples of 60 ...

Page 32: ...r sensors are connected by inserting the male connector To disconnect hold the connector by its sleeve Pulling on the sensor ca ble will not release the sensor connector Test generator P O W E R R E F The test generator connector option R S NRP B1 pro vides a high precision unmodulated sine signal with a power of 1 mW and a frequency of 50 MHz for checking the sensors The generator is turned on an...

Page 33: ...Front and rear views R S NRP 1144 1400 12 1 4 E 2 Keypad FREQ PRE SET ESC LOCAL ZERO CAL MENU TRIG DEL 1 See Chapter 3 Manual Operation ...

Page 34: ...value e g for level regulation or a digital signal for threshold monitoring The BNC connector TRIG OUT2 can be used either as an external trigger input or as a second analog output The inputs outputs are configured from the System menu see Chapter 4 6 System Settings Ethernet E t h e r n e t The Ethernet connector option R S NRP B4 is an RJ45 socket for remote controlling the R S NRP via a network...

Page 35: ...nector and contains a fuse holder for two miniature fuses The fuse holder can be taken out with a screwdriver See AC supply voltage on page 1 7 for more on con necting the AC supply Sensor connectors D B C A S E N S O R I N P U T Sensor connectors A and B option R S NRP B6 or C and D option R S NRP B5 can be accommodated on the rear panel ...

Page 36: ...es to 400 Hz net works The AC supply connector is at the rear of the meter The meter sets itself automatically to the applied voltage if it is in range AC supply fuses The R S NRP has two fuses as indicated by the type plate The fuses are accommodated in a fuse holder in the AC supply connector The holder can be pulled out to insert fuses The power supply has its own fuse Caution Only the service ...

Page 37: ...ly is operating correctly If option R S NRP B3 battery has been installed auto matic charging will be started if the battery is low The meter is on and is being powered from the AC supply The meter is on and is being battery powered only applies if option R S NRP B3 has been installed Caution If you want to completely isolate the meter from the AC supply pull out the AC supply plug Selecting the s...

Page 38: ...ssability check on the test generator Appears only if option R S NRP B1 is installed test generator Addressability test on the Ethernet interface The transmis sion rate is displayed Appears only if option R S NRP B4 is installed Ethernet The Ok below the network icon indicates that the inter face can be addressed If the R S NRP is not connected to a network hub or if a connection cannot be establi...

Page 39: ...y after switching on the R S NRP after about 3 seconds the R S NRP goes into a state in which you can adjust brightness and contrast Initially contrast and brightness are automatically set to their default values You can then make the settings you want using the diagram on the screen ON state Whenever the meter is switched off its settings are saved The next time it is switched on these set tings ...

Page 40: ...meters including the following will be set as a result All channels in the Cont Av mode continuous average power Absolute power measurement in dBm One window per channel opened Offset 0 dB Automatic filtering normal mode When the preset state is selected all default parameters are set even those for operating modes that have not been activated ...

Page 41: ...ng Started 2 1 Requirements 2 1 Measuring average power Cont Av mode 2 2 Window handling 2 11 Setting measurement functions 2 16 Graphically representing power versus time Scope mode 2 18 Measuring av burst power Burst Av mode 2 21 Measuring average power in defined time interval 2 22 ...

Page 42: ...time interval p 2 22 Power measurement in one or more successive timeslots with internal or external triggering Some of the sections later on in this Chapter assume familiarity with the basic operating techniques which are introduced in the first two sections It is therefore advisable to go through the first two sec tions before considering other topics Requirements Read the notes on putting the m...

Page 43: ...t the R S NRP into operation as described in Chapter 1 and connect a sensor to connector A PRE SET Press the PRE SET key The File menu appears The appearance of Preset on a black background means that this function can also be started by pressing the PRE SET key again PRE SET Press the PRE SET key again or the Preset softkey The Setup dialog box disappears and the meter is in the preset state A di...

Page 44: ...o All on a black background means that this function can also be started by pressing the ZERO CAL key again ZERO CAL Press the ZERO CAL key again or the Zero All soft key The correction measurement takes several seconds When completed a GO NOGO message is output 3 Setting the frequency The R S NRP must be set to the carrier frequency of the applied signal if the specified measurement accuracy is t...

Page 45: ...that is fed in by pressing the appropriate softkeys Using the UNIT softkey select the unit you want 9 Try the following To familiarize yourself with the editor try the following steps Using the left right cursor keys move the block cur sor and overwrite the digits with new values Use the up down cursor keys to scroll the digits to the cursor position Move the insertion mark to the right onto the u...

Page 46: ...U key if the menu is not dis played The results of post processing are summarized in the Measurement menu Window 1 2 3 4 Use the Window softkey to select window 1 The functions in the Windows and Measurement menu are all defined for the selected window The dark title bar indicates the window that has been selected 9 Tip You can also select windows with the up down cursor keys W Func dBm tion dBµV ...

Page 47: ...Measuring average power Cont Av mode R S NRP 1144 1400 12 2 6 E 2 The result is displayed in W ...

Page 48: ...hand side of rocker switch The Offset dialog box opens Factors for correcting ex ternal signal losses or gains due to an attenuator for example can be set in this box Global Activate the editor for the global offset by pressing the left hand side of the rocker switch next to Global Positive values are for correcting losses and negative values for gains 1 2 3 4 5 6 7 8 9 0 If you have an attenuator...

Page 49: ...now on The displayed value is increased or decreased depending on the sign of the offset Factors which are not or only minimally dependent on frequency can be corrected in this way MENU Close the dialog box MENU Close the menu If you have connected an attenuator and entered its at tenuation the R S NRP will display about the same value as before In the note line of the measurement window the symbo...

Page 50: ...the rocker switch next to Relative As the default setup was loaded in step 1 the value relative to 0 dBm is displayed Relative Press the rocker switch next to Relative again on the right hand side In the second line Off On Reset is displayed briefly and then the original display returns The last power result obtained has now been made the new reference value If the power has not changed in the mea...

Page 51: ... opening closing and configuring windows Select 1 2 3 4 Check if window 1 has been selected Close Expand Press the Expand softkey Window 1 now expands to occupy the full space below the menu bar and displays all the key measurement pa rameters The frequency from 3 the offset correction from 5 and the relative display from 6 To return the window to its normal size open the Windows menu with the MEN...

Page 52: ...ows PRE SET Press the PRE SET key twice A display window indicating the result from sensor A in dBm appears Using the topmost rocker switch or the cursor keys ÕÖ select the Windows menu The Windows softkey can be used to select which window the functions in the Windows menu and in the Measurement menu will act on 9 Tip The cursor keys â ô can in most cases be used instead of the rocker switch to s...

Page 53: ...ues obtained after a preset Instead of Expand the Arrange function is now available to arrange all opened windows MENU Open the menu again Close Arrange Press the Arrange key Window 1 returns to its previous size The following steps show the difference between the Open and Init functions You first have to change two set tings of window 1 Dig D A Using the Dig D A softkey activate the analog displa...

Page 54: ...t changed and all window specific settings have been maintained Close Arrange Open Init Again close window 1 with Close but open it this time with Init The window again displays the measurement function A in digital format The difference between Open and Init is that Open keeps the values of all the parameters that have been previ ously set in this window while Init sets all the parameters to thei...

Page 55: ...o select various dis play modes The standard display mode is Digital measured value Dig D A Graph Select the D A display mode Window 1 now shows an analog scale and a digital read ing The menu now includes the new item Analog Meter for setting the scale limits Dig D A Switch back to Dig display mode ...

Page 56: ... selected in the Function Unit dialog box Auxiliary Value Open the Auxiliary Value drop down list Auxiliary Value Select Max MENU Close the dialog box Press the Max Hold Reset softkey and close the menu with MENU The updated maximum is now displayed on the right next to the measured value If you reduce the signal power the maximum should remain the same However if the signal power is in creased th...

Page 57: ...an unmodulated signal with a level between 10 dBm and 10 dBm to each of the sensors PRE SET Press the PRE SET key twice Now two display windows with the results in dBm from sensors A and B appear A window for each sensor is opened with Preset Select the Measurement menu and then select Func tion from this menu Function Function Open the Function drop down list in the Function Unit dialog box In th...

Page 58: ... 9 Tip You can also operate the drop down lists by means of the cursor keys ô â instead of the rocker switch Function Select Ratio A B from the drop down list for the measurement function and close the drop down list with MENU Unit Now press the Unit softkey The ratio of two powers is dimensionless this is why only dB and 1 are available in the unit list The symbol represents the relative uncertai...

Page 59: ...mode Connect a power sensor of the R S NRP Z1x or R S NRP Z2x family to connector A of the R S NRP and apply an amplitude modulated or pulsed signal having a modulation or pulse frequency of approx 1 kHz The maximum level should be between 10 dBm and 10 dBm PRE SET Press the PRE SET key twice A measurement window is now available Change to the Sensor menu and select Mode Mode T slot T gate Scope S...

Page 60: ...izontal resolution If you do not see a trace the trigger threshold probably does not match the signal In this case a symbol on a black background see step o will apear in the row of warning symbols below the window title bar The other pages that can be selected via the tabs are used to configure the parameters of the Timeslot mode T slots Measuring average power in defined time interval as well as...

Page 61: ...gger threshold here 9 Tip When a symbol in the display shows that the sensor doesn t trigger the DEL 1TRIG key can be used to trigger the sensor once The then appearing graph often can give a hint how to choose trigger set tings Next Open the second page of the Trigger dialog box The Holdoff and Hysteresis parameters allow you to make settings that enable reliable triggering even in the case of co...

Page 62: ...onnect an R S NRP Z1x or R S NRP Z2x sensor to connector A on the R S NRP and apply a pulsed signal with a level between 10 dBm and 10 dBm PRE SET Press the PRE SET key twice A measurement window is now available Change to the Sensor menu and select Mode When the Mode dialog box opens select Scope Once in the Scope mode see section Scope make sure that the sensor detects a signal and relia bly tri...

Page 63: ...RP and apply a signal having TDMA time structure within the level range 10 dBm to 10 dBm Once in the Scope mode see section Scope make sure that the sensor detects a signal and relia bly triggers Change to the Sensor menu and select Mode When the Mode dialog box opens select Timeslot The associated parameters will appear in the lower part of the dialog box Under Nominal Width set the nominal value...

Page 64: ...tart does not coin cide with to the trigger time Delay Define the start of timeslot 1 with reference to the triggering edge The value can be positive or nega tive 9 Tip The Scope display shows physical and delayed trig ger times in the form of a triangle so that Delay can be interactively adjusted to the signal 3 Simultaneous measurement in multiple timeslots Change to the Windows menu Use the roc...

Page 65: ...r 3 1144 1400 12 I 3 1 E 2 Table of Contents 3 Manual Operation 3 1 Keys 3 1 Screen layout 3 3 Menu layout 3 5 Menu handling 3 7 Dialog boxes and their controls 3 8 Display windows 3 11 Window sizes and types 3 11 Special symbols 3 12 ...

Page 66: ...the softkeys see Menu handling on p 3 7 and Dialog boxes and their control elements on p 3 8 Hardkeys F R E Q P R E S E T Z E R O C A L The hardkeys are a direct way of activating the main func tions and are always available for use Brightness contrast Frequency entry Preset and setups Zeroing For further information on using the hardkeys see Chapter 4 section Hardkeys Cursor keypad The cursor key...

Page 67: ...ESC key to escape from the entry mode in text boxes and drop down lists It is also used to close dialog boxes and menus without losing any entries that have been made Title bar on p 3 8 As the LOCAL key it is used to switch the R S NRP from remote control mode all controls disabled to manual mode The key is automatically assigned its function according to context in other words there is no manual ...

Page 68: ... is always in inverse video and this is the name of the active menu Menu selection The menu you want to activate can be selected by pressing the right or left hand side of the topmost rocker switch one or more times Alternatively you can also use the cursor keys ê û Folding menus out or back MENU folds out the active menu The usual PC convention is not followed instead of drop ping down directly b...

Page 69: ...nus See p 3 7 Menu handling for more information Dialog boxes Dialog boxes can be opened from the menus The dialog boxes present a group of related parameters that can be set See Dialog boxes on p 3 8 for more information on handling dialog boxes ...

Page 70: ...r 4 section Data acquisition and parameters for a detailed description Windows The Windows menu is used to configure windows and the result display in the windows See Chapter 4 section Displaying measurement results for a detailed description Measurement The details of postprocessing are summarized in the Meas urement menu See Chapter 4 section Configuring measurements for a detailed description ...

Page 71: ...ormation about the instrument and any sensors that have been connected See Chapter 4 section Management of settings for a detailed description System The System menu is used to handle functions that are not specifically used to perform measurements See Chapter 4 section System settings for a detailed description ...

Page 72: ...of the same name e g Pre set in this case Open dialog box Mode If a menu item is followed by three dots it can be used to open a dialog box to set a variety of parameters Set parameters Relative Off On Reset Parameter setting options are presented in the menu The currently selected option is shown in inverse video You can select the option you want by pressing the left or right side of the rocker ...

Page 73: ...ensor connected and channels that have not been installed are shown in grey and cannot be selected Check boxes Check boxes are used to activate and de activate func tions You can toggle between the two states by pressing the appropriate softkey Option fields Option fields contain groups of mutually exclusive operat ing modes When you press the left hand side of the rocker switch the next option on...

Page 74: ...C key this leaves the old values unchanged Any warning messages are cleared Tip To set the maximum or minimum value permitted for a parameter first move the insertion mark to the left edge of the entry field by using the û key Then press the â key several times if necessary to set the maximum per missible value or the ô key to set the mimimum permis sible value Editing fields with direct entry of ...

Page 75: ... is used to select upper case for the next letter Caution To edit the Trigger Delay you must select the unit by means of the cursor keys see above Drop down lists Drop down lists are used to select an item from an a la carte list When the drop down list is activated the list folds out upwards or downwards The up down cursor keys or one of the rocker switches next to the list are used to select ite...

Page 76: ...window full height Analog window full height Scope window full height Scope window half height DIG window half height Analog window half height DIG window quarter height Analog window quarter height You can expand all opened windows to full height by activating the Expand function from the Windows menu In this state the full height windows can be displayed consecutively using the Window 1 2 3 4 me...

Page 77: ...rection functions Min Duty cycle correction ON Offset correction ON Twoport correction ON S parameter device Filter Trigger symbols Averaging filter Trigger Filter size with auto filter normal mode or for manual mode Free running trigger Noise component with auto filter in Fixed Noise mode Trigger remains OFF Noise ratio exceeded Single shot mode trigger ex pected Other Single shot mode measuremen...

Page 78: ...ring power in gates 4 14 Analyzing the envelope power 4 15 Offset correction 4 16 Table editor for offset tables 4 18 Filter averaging 4 19 Measurement ranges 4 22 Effect of the RF source 4 23 Trigger settings 4 24 Trigger sequence control 4 26 Displaying measurement results Windows menu 4 27 Window labelling 4 27 Arranging windows 4 27 The windows menu 4 27 Selecting a window 4 27 Using windows 4...

Page 79: ... Scope mode 4 41 Switching the sensor to the Scope mode 4 41 Selecting a window 4 43 Trigger settings 4 43 Filter settings 4 43 Setting parameters 4 44 Trace 4 44 T slots 4 45 Gates 4 46 Meas 4 47 Management of settings File menu 4 49 Default setting Preset 4 49 Storing user defined settings Setups 4 49 Loading user defined settings Setups 4 50 Loading settings for mobile radio standards 4 50 Prog...

Page 80: ...of Contents Chapter 4 1144 1400 12 I 4 3 E 2 System information 4 62 Information about sensors 4 62 Information about the R S NRP 4 63 Miscellaneous Operation at low ambient temperatures 4 64 Messages and alarms 4 65 ...

Page 81: ...igger Advanced dialog box 4 25 Fig 4 23 Windows menu Window softkey 4 27 Fig 4 24 Windows menu softkeys for controlling the windows 4 28 Fig 4 25 Window menu softkeys for controlling the display mode 4 29 Fig 4 26 Windows menu display specific softkeys 4 30 Fig 4 27 Meter Scaling dialog box 4 31 Fig 4 28 Windows menu softkey for scrolling between timeslots 4 31 Fig 4 29 Measurement menu 4 32 Fig 4...

Page 82: ...dialog box GPIB 4 55 Fig 4 52 Remote Dialog GPIB 4 56 Fig 4 53 Remote Dialog GPIB 4 56 Fig 4 54 IP Address Dialog Manual 4 57 Fig 4 55 IP Address Dialog DHCP 4 57 Fig 4 56 Analog Out dialog box 4 58 Fig 4 57 Selftest dialog box 4 60 Fig 4 58 Selftest Keyboard dialog box 4 61 Fig 4 59 Sensor Info dialog box 4 62 Fig 4 60 System Info dialog box 4 63 Fig 4 61 Miscellaneous dialog box 4 64 Tables Tabl...

Page 83: ...log box elements The symbols in the left hand column of the description indicate the following Sensor menu Mode dialog Context in which the operation below can be performed Name Softkey menu item or dialog element KEY Hardkey ä Function is activated with the left hand side of the rocker switch ä Function is activated with the right hand side of the rocker switch ä ä Function can be activated with ...

Page 84: ... time loads the Preset setting The user defined setups and settings for measurements on mobile radio stan dards can also be loaded from the File menu Hardkey PRE SET Fig 4 1 Setup dialog box Preset ä ä or PRE SET ä Changes the R S NRP to its default state Preset Tip The black background of the text indicates that the function can also be started by pressing the PRE SET hardkey if the File menu is ...

Page 85: ...or frequency entries with the units kHz MHz or GHz Remote Control SENSe 1 4 FREQuency CW FIXed float_value Zeroing ZERO CAL starts the autozero function or a test to check the confidence level of sensor results see next section Hardkey ZERO CAL ä Fig 4 3 Zero Cal dialog box Zeroes all connected sensors Tip The black background of the text indicates that the function can also be started by pressing...

Page 86: ...to the data sheet However overload other damage or ex treme operating conditions may cause the measurement uncertainty to exceed the specified values The option R S NRP B1 sensor check source makes it possible to check the reliability of the sensor by performing a test measurement In the case of sensors with a lead in attenuator pad R S NRP Z22 R S NRP Z23 and R S NRP Z24 the test measurement can ...

Page 87: ... re sults displayed separately Zero Cal dialog box Report ä Fig 4 6 Test Report dialog box A B C D ä ä Tabs for selecting the measurement channel When the dialog box opens it shows the data of the sensor last tested The measured val ues are lost when the R S NRP is switched off More Previous ä ä Switches between the pages Sensor only and Sensor Pad Configuring the test measurement The tolerance li...

Page 88: ...rs without a lead in attenuator or with an attenuator that has been removed Test Limits Sensor Pad ä ä Tolerance limits for sensors with a lead in attenuator Set to defaults ä Resets the factory default settings Settings locked ä Protects the settings against being changed by mistake Contrast and brightness Hardkey Æ ä Fig 4 8 Display dialog box Contrast ä ä Sets the display contrast Brightness ä ...

Page 89: ...RF source page 4 23 Trigger settings page 4 24 Fig 4 9 Sensor menu Setting the measurement mode The measurement mode is selected and configured in the Mode dialog box In addition to the Cont Av mode there are further measurement modes for the various sensor types available Sensor menu Mode ä ä Fig 4 10 Mode dialog box A B C D ä ä Tabs for sensor selection Cont Av Burst ä ä Measurement modes In the...

Page 90: ... is not to be or cannot be synchronized with a specific signal event This is the only available measurement mode for thermal sensors because they are too slow for the other measurement modes Mode dialog box Cont Av Burst ä ä Fig 4 11 Mode dialog box Normal mode Sampling Window ä This parameter defines the duration of the measurement window In the manual mode the default setting of 20 ms combined w...

Page 91: ... with some sensors because the sam pling frequency is located within the video bandwidth which means that spectral components of the modulation signal can fall in this fre quency range Changing the sampling rate will make the aliasing ef fects disappear Remote Control SENSe 1 4 SAMPling FREQ1 FREQ2 Duty Cycle ä ä Using the duty cycle correction the average power of RF bursts can be calculated from...

Page 92: ... filter has to be used Due to the unavoidable deadtime of the order of a few 100 µs per sampling window the measurement time does not drop in proportion to the reduction in sampling window time This may even mean that to obtain a well defined noise component in the result a greater measurement time overall is required if a sampling window that is too small is selected Smoothing modulated signals W...

Page 93: ...hoots can be omitted from measurements for example Mode dialog box Cont Av Burst ä ä Fig 4 12 Mode dialog box Burst mode Prevents brief power drops due to modulation from being misinter preted as the end of a burst Remote Control SENSe 1 4 POWer BURSt DTOLerance float_value Dropout Tolerance ä ä Caution The Dropout Tolerance must be less than the no power interval between the end and start of a bu...

Page 94: ...eshold is exceeded again during the dropout time the process restarts from the beginning Timing diagram The timing diagram below shows the relation between the following parameters Trigger threshold and trigger event Trigger event exclude intervals and measurement interval During the burst the signal frequently falls below the trigger threshold without the end of a burst be ing detected The reason...

Page 95: ...imeslots ä Number of timeslots on which a simultaneous meas is to be made Remote Control SENSe 1 4 POWer TSLot COUNt int_value Nominal Width ä Timeslot length When measurements are made on TDMA signals GSM EDGE PDC NADC PMS etc the nominal timeslot length must be entered here i e the frame length divided by the number of timeslots GSM example Frame length 4 615 ms No timeslots 8 Nominal width 4 61...

Page 96: ...internal Exclude Start Exclude End 1 2 3 4 Width Trigger event external Trigger event internal Delay Measurement interval 1 Measuring power in gates The Timegate mode is used to measure power in time windows gates Up to four different gates can be configured although measurement can be performed only in one of them at a time Measurement can be started with an external trigger signal or automatical...

Page 97: ...nd of the gate referenced to the delayed Trigger settings Trigger Delay p 4 24 trigger time Remote Control SENSe 1 4 POWer TGATe 1 4 OFFSet TIME float_value SENSe 1 4 POWer TGATe 1 4 TIME float_value Tip These parameters can also be set interactively in the Scope mode Gates p 4 46 Analyzing the envelope power The Scope mode is used to record evelope power versus time Its configuration and operatio...

Page 98: ... module Update S_Parameters in the sensor operating manual Sensor menu Offset ä ä Fig 4 15 Offset dialog box A B C D ä ä Tabs for selecting the sensor Global ä Field for entering the global offset Positive values correspond to external losses negative values to ex ternal gains Remote Control SENSe 1 4 CORRection OFFSet float_value Global ß ä Activates the global offset correction Remote Control SE...

Page 99: ...diting the selected offset correction table Remote Control MEMory TABLe FREQuency NRf NRf MEMory TABLe GAIN MAGNitude NRf NRf S Parameter Device ä ä Activates the S parameter set stored in the sensor for a twoport that has been connected ahead of the sensor Remote Control SENSe 1 4 CORRection SPDevice STATe ON OFF ...

Page 100: ...he cursor keys cannot be used for selection but can be used normally to edit values in the entry field Offset dialog box Edit Table ä Fig 4 16 Offset dialog box Table editor â ê ô û In the selection mode the cursor keys are used to select the field you want to edit Edit ä ä For selecting the edit mode for the marked field The entry can be confirmed with the MENU key or aborted with the ESC key Aft...

Page 101: ... in the ContAv mode and trigger controlled in the Burst Timeslot and Scope modes The measurement result is obtained by averaging the measured values for the last 2N time windows The number N is the filter length Length the factor of 2 arises because the output signals from the microwave detector to suppress low frequency noise are chopped at the same rate as the time windows which means that an in...

Page 102: ...unction can be called only when autofilter is off Changes are made immediately when a key is pressed Remote Control SENSe 1 4 AVERage COUNt int_value Reset Initializes the averaging filter with the value currently being measured Thus the display can be updated quickly after a change in level par ticularly in the case of a large filter length Remote Control SENSe 1 4 AVERage RESet Auto Once ä ä Det...

Page 103: ...oise in the measured result Specifi cally Noise Content gives the permitted relative variation of the result which may not be exceeded for 95 of the observation time Remote Control SENSe 1 4 AVERage COUNt AUTO NSRatio float_value Max Settling Time ä ä Specifies an upper limit for the settling time in the Fixed Noise mode Limit exceeded S N Remote Control SENSe 1 4 AVERage COUNt AUTO MTIMe float_va...

Page 104: ...nds to an increase in drive range of the same magnitude which reduces measure ment deviations due to modulation to 25 of the original value While large signal characteristics improve as the crossover level drops the effects of zero deviations and intrinsic noise on the result become more marked The reason for this is that above the crossover ranges the less sensitive of the two measurement paths i...

Page 105: ...rement accuracy can be increased by correcting for the effect of source mismatch on the measured value gamma correction To do this the magnitude and phase of Γ must be specified Sensor menu Source Match ä ä Fig 4 20 RF Source dialog box Source Γ consid for Enhanced ä ä Accuracy Increases measurement accuracy with gamma correction Remote Control SENSe 1 4 SGAMma CORRection STATe ON OFF A B C D ä ä ...

Page 106: ... boxes and their controls Tip Entering a correct value for the trigger delay is absolutely essential for accurate measurements in the Timeslot mode For this reason the setting should always be checked in the Scope mode T slots p 4 45 Remote Control TRIGger 1 4 ALL DELay float_value Source ä ä Drop down list for the trigger source external or internal and trigger slope positive or negative Remote C...

Page 107: ...sis before triggering can occur again brackets apply to triggering on the falling edge The trigger hysteresis is set in an editing field with direct entry of val ues see Chapter 3 Dialog boxes and their controls Remote Control TRIGger 1 4 ALL HYSTeresis float_value Single ä This setting is used to stop continuous triggering and thus execute only one trigger event at a time To enable the trigger re...

Page 108: ...gger sequence In continuous not single shot mode the DEL 1TRIG is used to inter rupt STOP or continue RUN the measurement In single shot mode each individual measurement must be released by pressing the DEL 1TRIG key before it can be initiated by the next trigger event Pressing the key a second time before the trigger event also initiates a measurement manual triggering ...

Page 109: ...tups Assigning meaningful names to the windows makes it much easier to recognize the associated measurement Arranging windows Displayed windows are shown in numerical order from the top to the bottom of the screen The R S NRP automatically selects the window size according to which combination of windows is dis played The windows menu The windows menu is context sensitive and displays only those m...

Page 110: ...in cascade fashion Fig 4 24 Windows menu softkeys for controlling the windows Opening windows Windows menu Open Init ä Opens a window with the previous settings This means that a meas urement which has been removed from the display can be restored Remote Control DISPlay WINDow 1 4 STATe ON Creating windows Windows menu Open Init ä Opens a window with preset values Configures a completely new measu...

Page 111: ... their original state with Arrange Remote Control DISPlay WINDow SIZE NORMal Selecting the result display mode In the windows a variety of result display modes can be selected The digital display Dig displays measured values as a number with additional information next to the reading The hybrid digital analog display D A displays the measured value on an analog scale and also digitally If the prim...

Page 112: ...4 26 Windows menu display specific softkeys Setting the resolution The resolution of the digital measurement result can be set in 4 stages designated as 1 dB 0 1 dB 0 01 dB and 0 001 dB If dB dBm or dBµV is selected as the unit the number of places after the deci mal point is set directly In the linear mode W 1 the number of digits after the decimal point de pends on the resolution a digit being a...

Page 113: ... float_value Right ä ä Enables input of the right end of scale value Remote Control DISPlay WINDow 1 4 METer ANALog UPPer float_value Scrolling between timeslots If the timeslot mode has been selected for a sensor you can use the Time Slot softkey in the Windows menu to select the timeslot whose measured values you want to display Fig 4 28 Windows menu softkey for scrolling between timeslots Windo...

Page 114: ...n the remote control mode additional measurements 5 to 8 can be configured not displayed on screen The Measurement menu The Measurement menu contains the functions required to configure measurements Selecting a window page 4 32 Selecting a measurement function and the unit page 4 33 Relative measurements page 4 39 Setting the reference value manually page 4 39 Limit monitoring page 4 40 Resetting ...

Page 115: ...and possibly a secondary channel can be selected for each measurement window The simplest case is a measurement with just one sensor To configure this measurement first of all select Primary X or Secondary X X A B C or D in the Function list and then the channel sensor you want in the Primary Channel or Secondary Channel list Select the function Ratio X Y to measure the power ratio and then the me...

Page 116: ...on Unit dialog box but automatically appears there when the primary channel is in the Scope mode The Scope mode does not allow relative measurements or two channel measurement functions ratio SWR etc The functions for the matching measurement are so defined that the forward power must be measured in the primary channel and the re verse power in the secondary channel Remote Control CALCulate 1 8 MA...

Page 117: ...d reference value or another measurement channel For this purpose the Func Unit dialog box provides expanded configuration possibilities including the number of the gate and the type of meas urand Avg Peak Peak Avg Note the following Restrictions regarding Peak and Peak Avg are described in the background information to Meas p 4 47 Only functions whose result is a power or a dimensionless ratio ca...

Page 118: ...on rocker switch Remote Control UNIT 1 8 POWer DBM W DBUV UNIT 1 8 POWer RATio DB DPCT O The following tables show the mathematical function used to determine the measurement result This function depends on the measurement function and the measurement unit that is set and is defined as either not relative to Relative Off or relative to Relative On a stored reference value Relative measurements pag...

Page 119: ...W 1 lg 10 B A P P V µ 1 lg 20 Z P P B A Measurement result relative to reference value Relative On 1 dB Primary Secondary R P P R P P lg 10 1 100 R P P Sum Diff R B A P P P R B A P P P lg 10 1 100 R B A P P P Ratio R Y X B A P P P P R Y X B A P P P P lg 10 1 100 R Y X B A P P P P P Power A P Power in channel A forward power B P Power in channel B reverse power R P Reference power R Y x P P Referen...

Page 120: ...ge 4 38 Auxiliary Value ä ä Max Min The interval that includes all values measured since the extreme value function was last reset Resetting the extreme value display page 4 38 Remote Control CALCulate 1 8 MINimum MAXimum PTPeak DATA DISPlay WINDow 1 4 AVALue MINimum MAXimum PTPeak OFF Resetting the extreme value display For each window the R S NRP continuously saves the maximum and minimum value ...

Page 121: ...ransferred to the active window s reference memory The display then returns to On Fernsteuerung CALCulate 1 8 RELative MAGNitude AUTO ONCE Setting the reference value manually The reference value can also be directly entered or edited using the Ref Val dialog box Measurement menu Ref Val ä Fig 4 33 Ref Value dialog box Ref Value ä ä For directly entering a new reference value or for editing an old...

Page 122: ...tting the analog outputs on page 4 58 Measurement menu Limits ä Fig 4 34 Limits dialog box Upper ß ä Turns monitoring of the upper limit on off Remote Control CALCulate 1 8 LIMit UPPer STATe ON OFF Upper ä Upper limit Remote Control CALCulate 1 8 LIMit UPPer DATA float_value Lower ß ä Turns monitoring of the lower limit on off Remote Control CALCulate 1 8 LIMit LOWer STATe ON OFF Lower ä Lower lim...

Page 123: ...y the length of the measurement window Trace p 4 44 and the number of measurement points Remote control SENSe 1 4 TRACe POINts int_value Reduced to If the desired time resolution cannot be obtained with the connected sensor the number of measurement points is automatically reduced With the Sensors R S NRP Z1x and R S NRP Z2x this limit is ap proximately 2 5 µs per measurement point external trigge...

Page 124: ...r averaging p 4 19 which can be used whenever Realtime is not enabled With very large averaging factors the display will tend to re spond slowly Realtime When the R S NRP is in the Normal mode averaging is always performed across a number of sweeps Because of the chopper amplifier Sampling window p 4 10 two sweeps are always taken into account in calculating the measurement result even if the aver...

Page 125: ...ements in the Scope mode Fig 4 37 Mode dialogHalf height window in the Scope mode Trigger settings To obtain a stable image the trigger parameters must be set in the Trigger and Trigger Adv dialog boxes so that they correspond to the signal Trigger settings and Trigger sequence control p 4 24 Filter settings Like any other result of a power measurement the displayed trace can also be smoothed usin...

Page 126: ...r making changes to parameters Entry fields on page 3 8 you can observe the effects immediately and make adjustments interactively Coarse or fine adjustments are possible depending on the decimal place in which you scroll Trace The parameters on the Trace page are used to determine the position and the size of the screen win dow The number of measurement points must be specified in the Mode menu S...

Page 127: ...est signal can considerably vary Among the different ways of finding a representative value each measurement point is assigned the average power of the correlating time interval which can result in deviations from the expected charac teristic of the envelope power In this case the time resolution must be increased by shortening the measurement window and or raising the number of measurement points...

Page 128: ...er of TDMA signals p 4 13 Tip for power measurement in timeslots 1 Enter TDMA standard parameters in the Mode menu Timeslot 2 Switch the sensor to the Scope mode 3 Make the horizontal and vertical display settings on the Trace page 4 Blend in the timeslot structure on the T slots page 5 Open the Trigger dialog box and set the delay so that the timeslot structure coincides with the trace 6 Change t...

Page 129: ...14 Time difference between the markers and level difference between marker positions Marker Edit Select ä Swaps the roles of the active and passive marker Marker Edit Select ä Opens an editor for the time position of the active marker Gate ä ä Selects a time window Meas The average power the peak power and their ratio for the selected time window are displayed on the Meas page The page is easy to ...

Page 130: ...urement of the peak power and the Peak Avg ratio two factors must be taken into account 1 First of all the video bandwidth of the power sensor must be greater than the RF bandwidth of the test signal so that the display of the envelope power characteristic is not corrupted The video bandwidth of the Sensors R S NRP Z1x and R S NRP Z2x is about 100 kHz allowing the peak power of many amplitude modu...

Page 131: ...f the text indicates that the function can also be started by pressing the PRE SET hardkey In the default setting a window is opened for each connected sensor The default setting is sensor specific Storing user defined settings The R S NRP provides 19 memory spaces in which complete device settings can be stored Setup memory Settings can be stored by using the Save Setup dialog box The memory spac...

Page 132: ...els the dialog Remote Control RCL 0 19 Loading settings for mobile radio standards Predefined settings for the most common mobile radio standards can be loaded in the Recall Standard dialog box for quick configuring of messages in the Timeslot and Scope modes In contrast to Recall Setup essentially only the parameters that affect the connected sensors are reconfigured Sensor menu The name of the s...

Page 133: ...WSettings ON OFF External Trigger ä ä Selects between configurations with an internal or an external trigger External triggering should be selected if the test signal yields no clearly defined or only an unstable trigger event If external triggering is used in the timeslot mode ensure that the trig ger delay setting is such that the start of the first timeslot coincides with the delayed trigger Tr...

Page 134: ...te the menu bar is replaced and the Errorlist can be opened with the topmost softkey ä ä Fig 4 47 Menu bar in the remote control mode DEL 1TRIG If the Errorlist is open the error queue of the R S NRP can be deleted by pressing the DEL key Remote control DISPlay ERRorlist ON OFF To activate extended error messages SYSTem ERRor EXTended STATe boolean Assigning names to windows Each display window is...

Page 135: ...ngs File menu 1144 1400 12 4 53 E 2 Window 1 ä ä Assigns a name to window 1 Pressing the softkey will open an editor for entering a name Window 2 4 ä ä Assign names to windows 2 to 4 Remote Control DISPlay WINDow 1 4 NAME string ...

Page 136: ... settings Configuring the remote control interfaces page 4 55 Setting the analog outputs page 4 58 Selftest page 4 60 Test generator page 4 62 System information page 4 62 Miscellaneous Operation at low ambient temperatures page 4 64 Fig 4 49 System menu System menu ...

Page 137: ...emote ä Fig 4 50 Remote dialog box GPIB Ethernet ä ä Selects the installed remote control interfaces or turns them off Configuring the GPIB Remote dialog box GPIB USB ä ä Fig 4 51 Remote dialog box GPIB GPIB Address ä ä A GPIB address in the range 0 to 30 can be selected RemoteControl SYSTem COMMunicate GPIB SELF ADDRess NR1 System Remote Remote GPIB ...

Page 138: ...System Info dialog box Information about the R S NRP page 4 63 and must be completely as displayed included in the address The VISA address string suitable for the device is displayed in the dialog box Configuring the Ethernet Remote control of the R S NRP via Ethernet is according to the VXI 11 standard Prerequisite for this is the installation of the R S NRP B5 option Due to the complexity of th...

Page 139: ...P server must be accessible in the network If the R S NRP is to be integrated into a larger network please contact your network administrator regarding the data to be set If the network consists only of the R S NRP and the control computer the two units can be connected with each other directly using a special network crossover cable The IP addresses are then set manu ally and can for example be s...

Page 140: ...l Analog OUTPut TTL 1 STATe OFF OUTPut RECorder 1 2 STATe ON Pass Fail OUTPut RECorder 1 2 STATe OFF OUTPut TTL 1 STATe ON Window 1 2 3 4 ä Specifies the window the output pertains to Remote Control OUTPut RECorder 1 2 FEED string OUTPut TTL 1 FEED string 0 V Equivalent ä Display value which corresponds to an output voltage of 0 V Remote Control OUTPut RECorder 1 2 LIMit LOWer float_value 3 V Equi...

Page 141: ...can influence the rate at which the voltage is updated with the aid of the sam pling window Free running average power measurements page 4 8 The time between two up dates of the output voltage is approximately twice the length of the sampling window The lower limit of this length of time during which the R S NRP can still regularly update the output voltage depends on the number of sensors connect...

Page 142: ...test function in the sensors System menu Test ä Fig 4 57 Selftest dialog box Keyboard ä ä Opens the dialog box for testing the keyboard Display Test Patterns ä ä Displays a sequence of different test patterns for checking the display The procedure can be aborted by pressing any key Sensor A B Test Sensor ä ä The right hand softkey starts a hardware test function in the sensor selected with the lef...

Page 143: ...l keys have been pressed or when no key has been pressed for 15 seconds Selftest dialog box Keyboard ä Fig 4 58 Selftest Keyboard dialog box The first stage in testing the whole keyboard is to press all the keys in any order without checking each response in the display If each key has been activated once and only once an OK message is output and the test is over Keys that are not activated during...

Page 144: ...nu Power Ref Off On ä ä Switches the test generator on off Remote Control OUTPut ROSCillator STATe ON OFF System information Information about sensors The following information about connected power sensors can be obtained with the Info Sensor dialog box Type and material number of sensor Serial number Software status Date of last calibration Frequency and power ranges Other technical data System ...

Page 145: ...s available for a specific sensor model are very easy to determine Information about the R S NRP The Info System dialog box displays the following basic device characteristics Type and material number of sensor Serial number Software status of system BIOS and keyboard controller Installed options Memory expansions Ethernet MAC address for instruments with option R S NRP B4 installed System menu In...

Page 146: ... OVERload ON OFF Beep Limit Warning ä ä Activates or deactivates an acoustic alarm when there is a limit viola tion simultaneously in all measurement windows Limit monitoring page 4 40 Beep Key Click ä ä Activates acoustic feedback to indicate when a key is pressed Remote Control SYSTem BEEPer NOTify KEY ON OFF Display Update Normal Slow Freeze ä ä Switches the rate at which the new measured value...

Page 147: ...rement limit is also displayed in the Sensor Info dialog box System information page 4 62 An alarm sounds when the message is displayed The alarm can be disabled in the Misc dialog box Miscellaneous page 4 64 Overrange This message is displayed only if the Auto range function is off It indicates that the permissible range has been exceeded Measurement ranges page 4 22 Measurement aborted Trunc Mea...

Page 148: ...ware error Automatic window initialization If an additional sensor is connected to the R S NRP during operation and if no currently open window displays the values measured in the channel concerned the R S NRP automatically offers to open a window and to configure it for measurements with the additional sensor con nected The previous settings of the newly opened window are lost To prevent this we ...

Page 149: ...5 4 Device Dependent Messages Commands and Responses 5 4 Commands 5 4 Responses 5 5 Structure and Syntax of Device Dependent Messages 5 6 SCPI Standard 5 6 Command Structure 5 6 Common Commands 5 6 Device Specific Commands 5 7 Structure of a Program Message 5 9 Responses to Queries 5 10 Parameters 5 11 Device Model and Command Processing 5 13 Input Unit 5 13 Command Identification Parser 5 13 Data...

Page 150: ... 1 SCPI command tree 5 7 Fig 5 2 Device model for remote control 5 13 Tables Table 5 1 Synchronization with OPC OPC and WAI 5 14 Table 5 2 Automatic settings for manual selection of a measurement mode 5 15 Table 5 3 Correspondence between remote control and manual control 5 17 ...

Page 151: ...he R S NRP is designed for ergonomic operation This means among other things that certain parameters are assigned default values that cannot be changed and that specific changes of device settings influence other settings In the remote control mode all settings can be changed and the user has to make sure that the device is correctly set for the measurement to be performed We therefore recommend p...

Page 152: ...e trigger system and the timing can be configured by the user as required Calculate Blocks The R S NRP manages 8 internal calculate blocks Each calculate block has two input channels primary and secondary channel to which one of up to 4 power sensors can be assigned The channels can be processed together by means of a selectable function The result is available at the output of the calculate block...

Page 153: ...ler and the R S NRP and is assumed to have been correctly configured After power up the R S NRP is always in the manual control mode LOCAL The R S NRP is switched to remote control irrespective of the selected interface as soon as an SCPI command is sent to the R S NRP All settings are maintained when the device is switched to the REMOTE mode Return to Manual Operation LOCAL In the remote mode all...

Page 154: ...the IEC IEEE bus without requiring an address whereas addressed commands only affect devices addressed as a listener The interface messages relevant for the device are described in the annex Æ Interface Messages page 6 127 Device Dependent Messages Commands and Responses Device dependent messages are transmitted on the data lines of the IEC IEEE bus when the ATN control line is not active The ASCI...

Page 155: ...s the frequency setting Most of these commands are also standardized by the SCPI Consortium Æ SCPI Standard page 5 6 The standard allows device specific extensions of commands Parallelism Overlapping commands can be executed while another command is being executed Sequential commands can only be executed when the execution of all other commands is completed Note In the R S NRP only the remote cont...

Page 156: ...d by the device Most of the other examples of command syntax and structure are taken from this command system SCPI is based on the IEEE 488 2 standard i e it uses the same syntax elements and the common commands defined in IEEE 488 2 The syntax of the responses is subjected to somewhat stricter rules than those specified by the IEEE 488 2 standard Æ section Responses to Queries page 5 10 Command S...

Page 157: ...cy FUNCtion POWer SWEep AVG TSLot BURSt OFFSet POINts Fig 5 1 SCPI command tree Some keywords are used at several levels within a command system Their effect depends on the command structure i e on their position in the command header Example SENSe1 TRACe POINts int_value This command contains the POINts keyword in the third level Example SENSe1 TRACe OFFSet POINts int_value This command contains ...

Page 158: ...m is the entire keyword Example STATus QUEStionable ENABle 1 and STAT QUES ENAB 1 Note Upper and lower case letters are only used for identifying the long and short form in the manual the device itself does not differentiate between the two types of characters Parameters The parameter must be separated from the header by a white space If a command contains several parameters they have to be separa...

Page 159: ... and therefore have one or several common levels the program message may be abbreviated The second command following the semicolon then starts at the level that is below the common levels The colon after the semicolon must be omitted in this case Example SENSe2 TIMing STARt 10 SENSe2 TIMing STOP 10 This program message contains two commands separated by a semicolon Both commands belong to the SENS...

Page 160: ...Trol Response MOV 2 Maximum and minimum values as well as all other quantities queried by a special text parameter are returned as numeric values Example SENSe POWer TSLot COUNt MAXimum Response 26 3 Numeric values are output without a unit Physical quantities refer to the basic units or to the units set with the UNIT command Example SENSe3 FREQuency Response 1 000000E06 for 1 MHz 4 Boolean values...

Page 161: ... is specified the basic unit will be used Some settings allow relative values to be stated in One and percent According to SCPI these units are represented by the strings O or DPCT The unit DPCT designates the deviation of a measurand from 100 A power ratio of 95 thus corresponds to 5 Unit used in the R S NRP SCPI notation Watt W dBm DBM dBµV DBUV dB DB 1 O DPCT Hertz HZ Second S Example SENSe1 FR...

Page 162: ...s Example SENSe1 FUNCtion ON POWer AVG or SENSe1 FUNCtion ON POWer AVG Block data The block data format is suitable for the transmission of large data volumes A command with a block data parameter has the following structure Example DISPlay PIXMap Response 49600xxxxxxxx The ASCII character denotes the beginning of the data block The next numeral specifies the number of subsequent digits defining t...

Page 163: ...rors in the command are recognized and passed on to the status reporting system Following the syntax test the value range of the data is verified and the setting is adapted Only after the command has been completely executed will the next command be processed Data Base and Device Hardware The term device hardware refers to that part of the device which performs the measurement function The data ba...

Page 164: ...ermine the sequence of execution If a long program message is terminated by OPC or OPC the end of command processing is signalled to the controller provided the controller has been adequately programmed Æ Table 5 1 Table 5 1 Synchronization with OPC OPC and WAI Command Effect Programming of controller OPC Sets the Operation Complete bit in the ESR after all commands sent prior to OPC have been pro...

Page 165: ...de TRIGger 1 4 LEVel Unchanged is irrelevant SENSe 1 4 TIMing EXCLude STARt Unchanged is irrelevant SENSe 1 4 TIMing EXCLude STOP Unchanged is irrelevant ContAv INITiate 1 4 CONTinuous ON Cannot be modified in manual mode TRIGger 1 4 SOURce Unchanged is irrelevant TRIGger 1 4 SLOPe Unchanged is irrelevant TRIGger 1 4 COUNt 1 Cannot be modified in manual mode TRIGger 1 4 DELay Unchanged is irreleva...

Page 166: ...levant SENSe 1 4 TIMing EXCLude STOP Unchanged is irrelevant Timeslot INITiate 1 4 CONTinuous ON Cannot be modified in manual mode TRIGger 1 4 SOURce EXTernal INTernal User selectable TRIGger 1 4 SLOPe POSitive NEGative User selectable TRIGger 1 4 COUNt 1 Cannot be modified in manual mode TRIGger 1 4 DELay 0 S Cannot be modified in manual mode TRIGger 1 4 HOLDoff Depends on sensor User selectable ...

Page 167: ...ModeÆContAvÆDutyCycle SENS 1 4 CORR DCYC STAT SensorÆModeÆBurstÆDropout SENS 1 4 BURSt DTOL SensorÆModeÆBurstÆSmoothing of Modulated Signals SENS 1 4 SMO STAT SensorÆModeÆBurstÆExclude Start SENS 1 4 TIM EXCL STAR SensorÆModeÆBurstÆExclude Stop SENS 1 4 TIM EXCL STOP SensorÆModeÆTimeslotÆNo of Timeslots SENS 1 4 POW TSL COUN SensorÆModeÆTimeslotÆNominal Width SENS 1 4 POW TSL WIDT SensorÆModeÆTime...

Page 168: ...SensorÆFilterÆAuto Config ÆFixed Noise SENS 1 4 AVER COUN AUTO TYPE NSR In Scope mode SENS 1 4 TRAC AVER COUN AUTO TYPE NSR SensorÆFilterÆAuto Config ÆFixed NoiseÆRef Timeslot SENS 1 4 AVER COUN AUTO SLOT In Scope mode SENS 1 4 TRAC AVER COUN AUTO SLOT SensorÆFilterÆAuto Config ÆFixed NoiseÆNoise Content SENS 1 4 AVER COUN AUTO NSR In Scope mode SENS 1 4 TRAC AVER COUN AUTO NSR SensorÆFilterÆAuto ...

Page 169: ...ion DISP 1 4 RES SENS 1 4 AVER COUN AUTO RES WindowsÆTimeslot WindowsÆT slot DISP 1 4 TSLot WindowsÆAnalog Meter ÆAuto Once DISP 1 4 MET AUTO ONCE DISP 1 4 ANAL AUTO ONCE WindowsÆAnalog Meter ÆLeft DISP 1 4 MET LOW DISP 1 4 ANAL LOW WindowsÆAnalog Meter ÆRight DISP 1 4 MET UPP DISP 1 4 ANAL UPP Menu item in manual control SCPI command in short form MeasurementÆWindow 1234 DISP 1 4 SEL MeasurementÆ...

Page 170: ...eÆSetup Save ÆSave SAV FileÆSetup Save ÆEdit Name MEM STAT DEF FileÆStandard Recall ÆPreserve Window Settings SYST STAN PWS FileÆStandard Recall ÆTrigger Source SYST STAN TRIG SOUR FileÆStandard Recall ÆRecall SYST STAN PRES FileÆSensor Info SYSTem SENS 1 4 INFO FileÆSystem Info SYSTem INFO FileÆWindow Name DISP NAME SystemÆRemote ÆGPIBÆGPIB Address SYST COMM GPIB ADDR SystemÆI O ÆOut 1 1234 OUTP ...

Page 171: ... O ÆI O 2Æ3 V Equivalent if Analog Out is selected OUTP REC2 LIM UPP SystemÆErrorlist SYSTem ERRor DISP ERR STAT Menu item in manual control SCPI command in short form SystemÆTest ÆSensor ABCD Init Test SYST SENS 1 4 TEST TST SystemÆPower Ref OUTP ROSC SystemÆDisplay Update DISP UPD SystemÆMisc ÆBeeperÆKey SYST BEEP NOT KEY SystemÆMisc ÆBeeperÆOverload SYST BEEP NOT OVER Æ DISP CONT DEL 1TRIG If t...

Page 172: ...6 5 CLS CLear Status 6 5 ESE 0 255 Standard Event Status Enable 6 5 ESE Standard Event Status Enable Query 6 5 ESR Standard Event Status Register Query 6 5 IDN IDeNtification Query 6 5 IST Individual Status Query 6 6 OPC OPeration Complete 6 6 OPC OPeration Complete Query 6 6 OPT OPTion Query 6 6 PRE 0 255 Parallel Poll Enable Register Command 6 7 PRE Parallel Poll Enable Register Query 6 7 PSC 0 ...

Page 173: ...ks 6 21 CALibration 6 29 DISPlay 6 30 FORMat 6 38 MEMory 6 39 OUTPut 6 44 SENSe Sensor Commands 6 50 SERVice 6 66 STATus 6 68 SYSTem 6 93 TRIGger 6 103 UNIT 6 108 List of Remote Control Commands 6 109 Compatibility Information 6 122 Interfaces 6 124 IEC IEEE Bus Interface 6 124 Characteristics of the Interface 6 124 Bus Lines 6 124 Interface Functions 6 126 Interface Messages 6 127 Standard Config...

Page 174: ...easurement commands 6 14 Table 6 2 Commands of the CALCulate system 6 21 Table 6 3 Output unit of measured value of calculate block 6 27 Table 6 4 Commands of the CALibration system 6 29 Table 6 5 Commands of the DISPlay system 6 30 Table 6 6 Commands of the FORMat command system 6 38 Table 6 7 Commands of the MEMory system 6 39 Table 6 8 Commands of the OUTPut system 6 44 Table 6 9 Voltage at TTL...

Page 175: ...er Limit Fail Status Register 6 86 Table 6 27 Meaning of bits used in the Questionable Power Status Register 6 87 Table 6 28 Meaning of bits used in the Questionable Window Status Register 6 88 Table 6 29 Meaning of bits used in the Questionable Calibration Status Register 6 89 Table 6 30 Initialization of device status 6 92 Table 6 31 Commands of the SENSe system 6 93 Table 6 32 Valid parameter v...

Page 176: ...s Remark This column indicates which commands do not have a query form are available as a query only Indentations The various levels of the SCPI command hierarchy are shown in the table by indentations to the right The lower the level the greater the indentation It should be noted that the complete notation of the command always includes the higher levels Example SENSe 1 4 AVERage COUNt is shown i...

Page 177: ...G APER 1ms sets the integration time in the ContAv mode to 1 ms SENS1 POW AVG APER returns the currently set integration time SYSTem SENSor3 INFO queries information of sensor C which cannot be modified For this reason this command is only available as a query for commands A selection of keywords with an identical effect exists for several commands These keywords are entered in the same line and s...

Page 178: ...e Is an abbreviation for NRf MINimum MAXimum DEFault boolean Stands for ON OFF 0 1 where ON and 1 are identical in meaning as are OFF and 0 string Stands for character strings that have to be within single or double quotes Examples Harry Potter Sirius Black block_data Stands for block data Æ section Parameters on page 5 11 non decimal_numeric Is a non decimal value in one of the following represen...

Page 179: ...ocal mode and can again be operated manually LLO Local Lock Out Deactivates the front panel keypad with the exception of the power key Ø In the LLO state it is possible to return to the LOCAL mode only by remote control GTL command or switching the R S NRP off and on again PPC Parallel Poll Configure Sets the device to the Parallel Poll Addressed to Configure State PACS PPD Parallel Poll Disable I...

Page 180: ...s Note The enable and transition registers NTRansition and PTRansition are not changed ESE 0 255 Standard Event Status Enable Sets the ENABle register of the Standard Event Status Register ESR to the specified value Æ SCPI command STATus page 6 68 ESE Standard Event Status Enable Query Returns the content of the ENABle register of the Standard Event Status RegisterÆ SCPI command STATus page 6 68 E...

Page 181: ...ntly executed commands the R S NRP writes a 1 into the output queue Since OPC waits until all previous commands are executed 1 is returned in all cases OPC basically functions like the WAI command but WAI does not return a response OPC is preferred to WAI because with OPC the execution of commands can be queried from a controller program before new commands are sent This avoids an overflow of the ...

Page 182: ... Power On Status Clear Query The query PSC reads out the content of the power on status clear flag The response can be 0 or 1 RCL 0 19 Recall Calls the device state which has been stored with the SAV command under the indicated number The effect of RCL 0 to 19 is the same as if one of the setups 0 to 19 had been selected in manual control RCL 0 resets the device to the default state RST Reset Sets...

Page 183: ... set to BUS TRIG SOUR BUS the sensor enters the MEASURING state TRG invalidates all current measuring results A query of measurement data following TRG will thus always return the measured value determined in response to TRG Error messages 211 Trigger ignored No sensor is in the WAIT_FOR_TRG state 211 Trigger ignored A sensor is in the WAIT_FOR_TRG state but the trigger source is not BUS TST Self ...

Page 184: ...asured values are forwarded to the SENSe block where they are processed and handed to the CALCulate blocks The values from the SENSe block are not immediately made available to the user but only after they have been processed in the CALCulate blocks In the CALCulate blocks the values of several sensors can be processed together before they are output MEASurement commands may be used to configure S...

Page 185: ...ured values temporarily to optimize the speed of data transmission to the remote controller CALCulate System M A T H E X P R e s s i o n S E N S n S E N S n S E N S m S E N S n S E N S m S E N S n S E N S m S W R S E N S n S E N S m R E F L S E N S n S E N S m R L O S S E N S n S E N S m R E L a t i v e U N I T L I M i t D A T A M I N i m u m D A T A M A X i m u m D A T A P T P e a k D A T A C A L...

Page 186: ...nt settings With other commands the question mark is compulsory and shows that the measured data is queried The commands have different functions CONFigure The calculate blocks and the associated sensors are configured by means of the parameter list A measurement is not started A question mark at the end of the command provides information on the parameters transferred by the last CONFigure or MEA...

Page 187: ...easurement result is returned The parameter list is compared to the current settings before the measurement is started If the list does not agree an SCPI error 221 Setting conflict is returned and the command aborted Apart from this check READ corresponds to the program message INIT IMM FETCh 1 8 MEASure Combines CONFigure and READ FETCh The FETCh command without parameters has a special meaning W...

Page 188: ...SCALar POWer TSLot SCALar POWer BURSt ARRay POWer AVG XTIMe POWer expression Specification of a calculation function for the addressed CALCulate block Æ CALCulate 1 8 MATH EXPRession command on page 6 26 If expression is not specified the measured value of the primary channel is output Keywords RELative DIFFerence DIFFerence RELative SUM SUM RELative RATio RATio RELative RLOSs SWR REFLection Queri...

Page 189: ... SCALar POWer TSLot AVG timeslot_parameter_list RELative RELative timeslot_parameter_list DIFFerence DIFFerence timeslot_parameter_list RELative RELative timeslot_parameter_list SUM DIFFerence timeslot_parameter_list RELative RELative timeslot_parameter_list RATio RATio timeslot_parameter_list RATio RELative RATio RELative timeslot_parameter_list SWR SWR timeslot_parameter_list REFLection REFLecti...

Page 190: ... buffered_parameter_list RELative RELative buffered_parameter_list SUM DIFFerence buffered_parameter_list RELative RELative buffered_parameter_list RATio RATio buffered_parameter_list RATio RELative RATio RELative buffered_parameter_list SWR SWR buffered_parameter_list REFLection REFLection buffered_parameter_list RLOSs RLOSs buffered_parameter_list Scope mode CONFigure 1 8 READ 1 8 MEASure 1 8 FE...

Page 191: ...C and SC This means that two sensors must be specified in source_list This also applies to the following functions DIFFerence RELative PC SC reference value The difference between the PC and SC is divided by the reference value determined with the aid of one of the following commands CALCulate 1 8 RELative MAGNitude CALCulate 1 8 RELative AUTO SUM PC SC Yields the sum of the PC and SC The source_l...

Page 192: ...eflected transmitted power in the SC the calculate block yields the reflection coefficient transmission factor of the DUT The output unit is set to One UNIT RAT O RLOSs PC SC log 20 10 If the forward power of a wave is measured in the PC and the reflected or transmitted power in the SC the calculate block yields the return loss transmission loss of the DUT This function principally yields the same...

Page 193: ...ents of the parameter lists have the following meaning expected_value Value range float_value DEF According to the SCPI 1999 0 standard a value in the order of the expected measured value can be specified This allows the device to set an adequate measurement range This is not required in the R S NRP because the measurement is performed simultaneously in all measurement ranges Any value can therefo...

Page 194: ... 2 are set for source_list Sensor C is assigned to the primary channel and sensor B to the secondary channel The calculate blocks process the primary channel together with the secondary depending on the desired function If RATio is selected as the calculation function the result from the calculate block is the ratio of the values measured by sensor C and sensor B tslot_width Value range depending ...

Page 195: ...scope_size Value range depending on sensor Default value depending on sensor Unit Number of measured values in one data set Æ SENSe 1 4 TRACe POINts int_value Error messages 24 Sensor mode not supported A sensor does not support a measurement mode 221 Settings conflict This error is generated when a FETCH or READ command is sent and the current device settings do not correspond to the transmitted ...

Page 196: ...f the measurement result MAXimum DATA Query only The unit is the current unit of the measurement result PTPeak DATA Query only The unit is the current unit of the measurement result EXTRemes RESet No query FEED 1 2 string LIMit BEEP ON OFF No query CLEar IMMediate No query AUTO FAIL Query only FCOunt Query only UPPer DATA float_value The value range of the parameter depends on the output unit of t...

Page 197: ...um value The extreme values can be queried with CALC 1 8 MIN DATA and CALC 1 8 MAX DATA CALCulate 1 8 FEED 1 2 string The sensors connected with the calculate block via the primary and secondary channel can yield differently processed data peak value average value peak to average value or even a measurement sequence as is the case in the Scope mode The CALC FEED determines which of this data is to...

Page 198: ... internal counter for limit violations if any of the following events occurs INITiate IMMediate is executed INITiate CONTinuous ON is executed A MEASure or MEASure query is executed A READ or READ query is executed If the automatic function is set to ONCE the counter is reset only when the next of these events occurs RST value OFF CALCulate 1 8 LIMit FAIL Queries whether upper or lower limits have...

Page 199: ...lculate block s measured value Unit of measured value W DBM DBUV DPCT DB O Value range 9 99999E5 9 99999E5 120 90 13 0103 196 897 100 999 99 200 200 1E20 1E20 Unit Æ Table 6 3 on page 6 27 RST value 0 DBM or 0 DB CALCulate 1 8 LIMit LOWer DATA POWer float_value This command sets a lower limit for the measured power unit W DBM or DBUV The R S NRP can respond when the values drop below this limit se...

Page 200: ...200 1E20 1E20 Unit Æ Table 6 3 on page 6 27 RST value 0 DBM or 0 DB CALCulate 1 8 LIMit UPPer DATA POWer float_value This command sets an upper limit for the measured power unit W DBM or DBUV The R S NRP can respond when this limit is exceeded see other CALCulate 1 8 LIMit commands Unit DBM W DBUV Default unit DBM Value range 120 DBM to 90 DBM RST value 0 DBM CALCulate 1 8 LIMit UPPer DATA RATio f...

Page 201: ...tputs the standing wave ratio of this wave The output unit is set to percent UNIT RAT PCT REFL SENSn SENSm SENSn SENSm If sensor n measures the forward power of a wave and sensor m the reflected transmitted power the calculate block outputs the reflection coefficient transmission factor of a DUT The output unit is set to percent UNIT RAT PCT RLOS SENSn SENSm SENSn SENSm log 20 10 If sensor n measu...

Page 202: ...it of this value is equal to the unit of the output value of the calculate block and is defined according to Table 6 3 Table 6 3 Output unit of measured value of calculate block CALC MATH CALC REL STAT OFF CALC REL STAT ON SENSn DBM W DBUV DB DPCT O SENSn SENSm DBM W DBUV DB DPCT O SENSn SENSm DBM W DBUV DB DPCT O SENSn SENSm DB DPCT O DB DPCT O SWR SENSn SENSm O REFL SENSn SENSm O RLOS SENSn SENS...

Page 203: ...o Unit DB PCT Default unit DB Value range 200 200 DB 1e 18 1e22 PCT RST value 0 DB CALCulate 1 8 RELative MAGNitude AUTO OFF ONCE Sets the current measured value as the reference value When used as a setting command this command can only be called by the parameter ONCE OFF will be ignored OFF is always returned in response to a query RST value OFF Error messages 230 Data corrupt or stale The curre...

Page 204: ...ly the parameter ONCE start of zeroing OFF is ignored and ON is not accepted A query returns ON if a calibration is running in all other cases OFF The command is overlapping i e other commands can be sent to the R S NRP while one or more calibrations are running Zeroing is recommended if the temperature has varied by more than about 5 C the sensor has been replaced no zeroing was performed in the ...

Page 205: ... AVALue MINimum MAXimum PTPeak OFF FORMat DIGital ANALog GRAPhical METer ANALog AUTo ONCE OFF LOWer float_value The value range of the parameter depends on the output unit of the measured value POWer float_value DBM W DBUV RATio float_value DB DPCT O UPPer float_value The value range of the parameter depends on the output unit of the measured value POWer float_value DBM W DBUV RATio float_value DB...

Page 206: ...e TEXT DATA string Defines the text that can be displayed in a message window The text can contain ASCII characters from code 32 to code 126 The string n is interpreted as a line break Up to 4 lines DISP MESS TYPE MESS or up to 2 lines DISP MESS TYPE QUERy can be shown The length of a line depends on the characters used because a proportional font is used Lines that are too long are cut off which ...

Page 207: ...on about the measured values is shown in the display MINimum MAXimum Minimum Maximum of all measured values since the last CALC EXTR RES or Power On respectively PTPeak Differenz linear units or logarithmic ratio logarithmic units of maximum and minimum of all measured values since the last CALC EXTR RES or Power On respectively OFF No additional information is displayed RST Wert OFF DISPlay WINDo...

Page 208: ... PCT DB Value range for float_value 1e 18 1e18 150 210 1e 18 1e22 200 200 Unit Æ Table 6 3 on page 6 27 RST value 90 DBM or 120 DB DISPlay WINDow 1 4 METer ANALog LOWer POWer float_value Sets the lower limit value of the analog scale This value is used if the unit of the measurement result is Watt dBm or dBµV i e the measurement result is a power Unit DBM W DBUV Default unit DBM Value range see DI...

Page 209: ...esult is a power Unit DBM W DBUV Default unit DBM Value range see DISPlay WINDow METer ANALog UPPer RST value 30 DBM DISPlay WINDow 1 4 METer ANALog UPPer RATio float_value Sets the upper limit value of the analog scale This value is used if the unit of the measurement result is dB percent or the number 1 i e the measurement result is a power ratio Unit DB DPCT O Default unit DB Value range see DI...

Page 210: ...tched on SENSe 1 4 AVERage COUNt AUTO ON DISP 1 8 RES has an effect on the setting SENS 1 4 AVER COUN AUTO RES of the sensors used in the measurement function CALC 1 8 MATH However the resolution setting of the sensors does not affect the resolution of values in the display This command corresponds to the resolution option of the high level measurement commands CONFigure FETCH READ and MEASure RST...

Page 211: ...lue 120 DBM DISPlay WINDow 1 4 TRACe UPPer float_value Sets the upper limit for the power axis in the Scope mode The value range depends on the unit Unit of measured value W DBM DBUV Value range 999 999E3 999 999E3 120 90 13 010 136 990 Default unit DBM Unit DBM W DBUV Value range see above RST value 30 DBM DISPlay WINDow 1 4 TSLot int_value Sets the displayed timeslot if the primary or secondary ...

Page 212: ...ed Sets the window size NORMal The window size is determined automatically and depends on the total number of open windows ZOOMed The selected window DISP WIND SEL is set to maximum size regardless of the the number of visible windows Any other open windows are covered RST value NORMal ...

Page 213: ...ORMat READings BORDer NORMal SWAPped Influences the order of bytes in 64 bit binary data NORMal The 1st byte is the MSB most significant byte the 8th byte the LSB least significant byte This fulfills the Big Endian convention Big Endian the big end comes first SWAPped The 1st byte is the LSB least significant byte the 8th byte the MSB most significant byte This fulfills the Little Endian conventio...

Page 214: ...est assemblies can be compensated for during the measurement The tables are selected with SENSe 1 4 CORRection FDOT SELect and then activated and deactivated with SENSe 1 4 CORRection FDOT STATe Names can be assigned to the tables Some commands which do not specify a table name affect the table currently selected with MEM TABL SEL name Note Stored data is not affected by an RST command Table 6 7 C...

Page 215: ...ry MEM CAT could be 956 99044 REFL STAT 408 NRPZ21 TABL 432 SPLITTER1 TABL 116 MEMory CATalog STATe This query only gives a list of stored device states and is otherwise identical with MEMory CATalog ALL MEMory CATalog TABLe This query only gives a list of stored correction tables and is otherwise identical with MEMory CATalog ALL MEMory CLEar NAME string Clears the content of the correction table...

Page 216: ...ME expects parameters that are actually strings rather than the numbers of the memory locations The default names of these memory locations are Setup 0 to Setup 19 The name may contain the characters A to Z a to z 0 to 9 and _ The query of this command returns the number of the memory location with the name of string MEMory TABLe FREQuency NRf NRf This command enters frequencies in the first colum...

Page 217: ...nterpolation is linear in the units HZ and DB Unit DB PCT Default unit DB RST values Tables are not changed in case of RST MEMory TABLe GAIN POINts Returns the number of entries lines in the table selected with MEM TABL SEL string MEMory TABLe MAP string 1 9 MEMory TABLe MAP string The numbers 0 to 9 are permanently assigned to the memory locations for device states Names string can be assigned to...

Page 218: ...s the table name string The following commands affect this table MEMory CLEar NAMe string MEMory CLEar TABLe all MEMory TABLe commands The selection is not changed in case of an RST or a SYSTem PRESet RST value none Error messages 256 File name not found A table named string is not known ...

Page 219: ...e DBM W DBUV RATio float_value DB DPCT O UPPer float_value The value range of the parameter depends on the output unit of the measured value POWer float_value DBM W DBUV RATio float_value DB DPCT O STATe ON OFF ROSCillator STATe ON OFF Option R S NRP B1 CALibration READ NR1 Option R S NRP B1 WRIte NR1 NR1 Option R S NRP B1 TTL 1 ACTive LOW HIGH FAIL HIGH LOW FEED string HVOLtage float_value V LVOL...

Page 220: ...he measured value in the window currently has Unit of measured value W DBM DBUV DPCT DB O Value range 9 99999E5 9 99999E5 120 90 13 0103 196 897 100 999 99 200 200 1E20 1E20 Unit Æ Table 6 3 on page 6 27 RST value 20 DBM or 0 DB Note The characteristic is linear in the selected unit of the measured value OUTPut RECorder 1 2 LIMit LOWer POWer float_value Specifies the lower power limit of the chara...

Page 221: ...red value in the window Unit of measured value W DBM DBUV DPCT DB O Value range 9 99999E5 9 99999E5 120 90 13 0103 196 897 100 999 99 200 200 1E20 1E20 Unit Æ Table 6 3 on page 6 27 RST value 20 DBM or 10 DB OUTPut RECorder 1 2 LIMit UPPer POWer float_value Specifies the upper power limit of the characteristic for one of the two analog outputs if the associated calculate block returns a power unit...

Page 222: ... setting of one of the internal electronic potentiometers of the test generator option R S NRP B1 The number of the potentiometer 1 to 4 is indicated with the parameter NR1 The response is an 8 bit integer with a sign 128 to 127 RST value none OUTPut ROSCillator CALibration WRIte NR1 NR1 Sets the test generator option R S NRP B1 Refer to the following table for the meaning of the two parameters 1s...

Page 223: ...e identical except for the opposite meaning of the parameters OUTPut TTL 1 FEED string Sets the calculate block whose limit handling controls the TTL voltage If the measured value of this calculate block violates a limit and limit monitoring is active the voltage specified in Æ Table 6 9 first line is output Value range CALC1 LIM CALC2 LIM CALC3 LIM CALC4 LIM RST value CALC1 LIM OUTPut TTL 1 HVOLt...

Page 224: ...lable at the output OUTP TTL ACT LOW OUTP TTL FAIL HIGH OUTP TTL ACT HIGH OUTP TTL FAIL LOW Measured value violates limit OUTP TTL LVOL OUTP TTL HVOL Measured value is within limit OUTP TTL HVOL OUTP TTL LVOL Table 6 9 Voltage at TTL output P o w e r V o l t a g e O U T P T T L H V O L T D I S P L I M L O W D I S P L I M U P P O U T P T T L L V O L T D I S P L I M L O W D I S P L I M U P P O U T P...

Page 225: ...ve sensor manual Table 6 10 Commands of the SENSe system Command Parameter Unit Remark SENSe 1 4 AVERage STATe ON OFF COUNt int_value AUTO ON OFF ONCE MTIMe float_value S RESolution 1 2 3 4 SLOT int_value NSRatio float_value DB PCT TYPE RESolution NSR RESet no query STATe ON OFF TCONtrol MOVing REPeat CORRection OFFSet float_value DB PCT STATe ON OFF DCYCle INPut MAGNitude float_value PCT STATe ON...

Page 226: ... that more reliable results are obtained RST value depending on sensor SENSe 1 4 AVERage COUNt int_value This command sets the filter length i e the number of readings to be averaged for one measured value The higher the count the lower the noise and the longer it takes to obtain a measured value Unit Value range depending on sensor RST value depending on sensor SENSe 1 4 AVERage COUNt AUTO ON OFF...

Page 227: ...er of decimal places for logarithmic units which should be free of noise in the measurement result This setting is also performed by the DISP 1 4 RES command Æ page 6 35 that tries to set the sensors involved in the measurement results accordingly For further details see Chapter 4 The setting is only taken into account if SENS AVER COUN AUTO TYPE is set to RES and SENS AVER COUN AUTO is ON However...

Page 228: ...ENS 1 4 AVER COUN AUTO NSR RST value depending on sensor SENSe 1 4 AVERage RESet Initializes the digital filter by deleting the stored measured values RST value none SENSe 1 4 AVERage TCONtrol MOVing REPeat As soon as a new single value is determined the filter window is advanced by one value so that the new value is taken into account by the filter and the oldest value is forgotten SENSe 1 4 AVER...

Page 229: ...e correction is only applied in the ContAv mode where measurements are performed continuously without taking the timing of the signal into account Unit PCT Value range depending on sensor RST value depending on sensor SENSe 1 4 CORRection DCYCle STATe ON OFF This command switches duty cycle correction for the measured value on or off RST value depending on sensor SENSe 1 4 CORRection FDOFfset INPu...

Page 230: ...multiplied by this factor RST value Settings are not changed in case of RST Error messages 256 File name not found A table named name is not known SENSe 1 4 CORRection FDOTable STATe ON OFF This command activates and deactivates the current frequency dependent offset table The current table is selected with the SENSe 1 4 CORRection FDOTable SELect command Only one table can be active at a time RST...

Page 231: ...rt of a burst is detected when the measurement signal rises above the set trigger level The end is set when the signal drops below the trigger threshold SENS POW BURS DTOL defines the time interval during which a signal drop below the trigger level is not interpreted as the end of the burst In the Burst mode the set trigger source is ignored and TRIG SOUR INT is implicitly assumed XTIMe POWer Scop...

Page 232: ...ather than single measured values are then returned In this mode a higher data rate is achieved than in the non buffered ContAv mode The number of desired measured values is set with the SENSe 1 4 POWer ARR SIZE command RST value depending on sensor SENSe 1 4 POWer AVG RANGe 0 1 2 Selects a measurement range in which the corresponding sensor is to perform a measurement This setting will only becom...

Page 233: ...ce float_value The end of a burst power pulse is recognized when the signal level drops below the trigger level Especially with modulated signals this may also happen for a short time within a burst To prevent the supposed end of the burst from being recognized too early or incorrectly at these positions a time interval can be defined via SENS 1 4 BURS DTOL drop out tolerance in which the pulse en...

Page 234: ...nsor RST value depending on sensor Trigger level Power Time Trigger event Delayed trigger point Trigger delay Gate 1 Gate 4 Gate 3 Gate 2 SENS TRAC1 OFFS TIME SENS TRAC1 TIME SENS TRAC2 OFFS TIME SENS TRAC2 TIME Figure 6 8 Timing parameters for the Timegate mode SENSe 1 4 POWer TGATe SELect 1 2 3 4 This command selects one of the four gates in which the average power is measured if the Timegate mo...

Page 235: ...mal sampling rate FREQ1 RST value depending on sensor SENSe 1 4 SGAMma MAGNitude float_value The R S NRP can perform a measured value correction taking the complex reflection coefficient source gamma of the signal source into account SENS 1 4 SGAM CORR STAT ON must be set The magnitude of the reflection coefficient is set with SENS 1 4 SGAM MAGN Unit Value range depending on sensor RST value depen...

Page 236: ...r SENSe 1 4 TRACe AVERage COUNt AUTO ON OFF ONCE This command can be used to automatically determine a value for SENSe 1 4 AVERage COUNt for the Scope mode If the command is called with the parameter ONCE automatic switchover is deactivated setting OFF and the suitable filter length will then be defined and set automatically The setting can then be queried via SENS 1 4 AVER COUN If the automatic s...

Page 237: ...s of the two commands are different but have the same meaning SENS 1 4 AVER COUN AUTO RES 1 2 3 4 DISP 1 4 RES 1 0 1 0 01 0 001 Unit Value range depending on sensor RST value depending on sensor SENSe 1 4 TRACe AVERage COUNt AUTO POINt int_value Specifies the measured value in the Scope mode used for the automatic determination of the filter length Unit Value range depending on sensor RST value de...

Page 238: ... the oldest value is forgotten SENSe 1 4 AVERage TCONtrol terminal control then determines in the Scope mode whether a new result will be calculated immediately after a new measured value is available MOVing or only after an entire range of new values is available for the filter REPeat RST Wert PRES and SYST PRES MOV RST REP SENSe 1 4 TRACe OFFSet TIME float_value This command determines the relat...

Page 239: ...ter 4 RST value depending on sensor SENSe 1 4 TRACe TIME float_value Sets the time to be covered by the Scope sequence Unit S Value range depending on sensor RST value depending on sensor SENSe 1 4 TIMing EXCLude STARt float_value Sets a time that is to be excluded at the beginning of the integration Æ Fig 6 9 Unit S Value range depending on sensor RST value depending on sensor SENSe 1 4 TIMing EX...

Page 240: ...R S NRP Remote Control Commands 1144 1400 12 6 65 E 3 Integration period EXCLude STARt EXCLude STOP Power Time Fig 6 9 Effect of commands SENS 1 4 TIM EXCL STAR and STOP ...

Page 241: ...Vice 1 4 CALibration TEST NR1 Tests the consistency of the calibration data set according to three criteria If the following bit is set in NR1 the following action is executed 0 The serial number of the calibration data set is tested 1 The checksum of the calibration data set is tested 2 The header of the calibration data set is tested If an inconsistency of the data set is detected the query retu...

Page 242: ... determines how often the measured value should be obtained The measurement sequences defined in this way are repeated until the sensor is disconnected from the R S NRP and reconnected Example The command sequence SERV2 RCO 2 SERV2 RES 3 SERV2 RES 2 SERV2 RES 4 SERV2 RES 1 makes sensor 2 return the measured values 3 W 3 W 4 W 3 W 3 W 4W from now on RST value none The simulation mode is not exited ...

Page 243: ...ster Operation Lower Limit Fail Status Register Operation Upper Limit Fail Status Register Except for the Standard Event Status Register each of these registers comprises five subregisters with which the function of the register can be configured These subregisters are called EVENt CONDition NTRansition PTRansition ENABle The registers are 16 bits wide but only the lower 15 bits are used This prev...

Page 244: ...sed The enable and transition registers can also be set with these commands The effect of the status reporting system can thus be adapted to user requirements The parameters have the following meaning status_register_summary_command One of the status register queries from Table 6 13 is to be used here without a terminating question mark NR1 Is a decimal value between 0 and 32767 The values DEFAULT...

Page 245: ...nction for the IST flag as the SRE has for the service request The output buffer output queue contains the messages the device returns to the controller It is not part of the status reporting system but since it determines the value of the MAV bit in the STB it is also shown in Fig 6 11 Structure of SCPI Status Register Each SCPI register consists of five 16 bit registers which have different func...

Page 246: ...t set This register can be written to and read Reading the register does not change its contents NTRansition register The Negative TRansition register also acts as a transition filter Upon transition of a bit of the CONDition register from 1 to 0 the associated NTR bit determines whether the EVENt bit is set to 1 NTR bit 1 the EVENt bit is set NTR bit 0 the EVENt bit is not set This register can b...

Page 247: ... 1 the summary bit is also set to 1 This register can be written to and read as required Reading the register does not change its contents Summary bit As stated above the summary bit for each register is derived from the EVENt and ENABle registers The result is entered into a bit of the CONDition register of the next higher register The device automatically generates the summary bit for each regis...

Page 248: ...ete 0 1 2 3 4 5 6 7 Questionable Power Summary Warning Questionable Calibration Summary POST Failure 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 0 0 0 0 0 0 0 Questionable Window Summary 0 0 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Sensor A connected Sensor A error Sensor A Front Rear Key pressed Sensor B connected Sensor C connected Sensor D connected Sensor B Front Rear Sensor C Front Rear Sensor D F...

Page 249: ... Sensor B waiting for trigger Sensor A waiting for trigger 0 0 1 2 3 4 15 Sensor C initializing 0 0 Sensor D initializing Sensor B initializing Sensor A initializing 0 0 1 2 3 4 15 Window 3 Lower Limit Fail 0 0 Window 4 Lower Limit Fail Window 2 Lower Limit Fail Window 1 Lower Limit Fail 0 0 1 2 3 4 Operation Calibrating Status Register Operation Measuring Status Register Operation Trigger Status ...

Page 250: ... 5 6 7 8 Window 5 Power Window 6 Power Window 7 Power Window 8 Power 0 0 STAT QUES POW STAT QUES WIND STAT QUES CAL Fig 6 13 Questionable Status Register Description of Status Registers In the following sections the SCPI status registers shown in Fig 6 11 to Fig 6 13 are described in detail Status Byte STB Service Request Enable Register SRE Device Status Register Questionable Status Register Stan...

Page 251: ...try If this bit is enabled by the SRE each entry of the error queue will generate a service request An error can thus be recognized and specified in detail by querying the error queue The query yields a conclusive error message This procedure is recommended since it considerably reduces the problems of IEC IEEE bus control 3 Questionable Status Register summary bit This bit is set if an EVENt bit ...

Page 252: ...vice states CONDition register or states that occurred since the last query EVENt register The register can be read by the queries STATus DEVice CONDition or STATus DEVice EVENt Table 6 17 Meaning of bits used in the Device Status Register Bit No Meaning 0 Not used 1 Sensor A connected 2 Sensor B connected 3 Sensor A error Sensor A is erroneous 4 Sensor B error Sensor B is erroneous 5 Sensor A Fro...

Page 253: ...be read by the queries STATus QUEStionable CONDition or STATus QUEStionable EVENt Table 6 18 Meaning of bits used in the Questionable Status Register Bit No Meaning 0 to 2 Not used 3 Questionable Power Status Register summary bit Corresponds to the summary bit of the Questionable Power Status Register 4 Questionable Window Status Register summary bit Corresponds to the summary bit of the Questiona...

Page 254: ... device before it retrieves existing requested data A frequent cause is a faulty query which cannot be executed 3 Device dependent Error This bit is set if a device dependent error occurs An error message with a number between 300 and 399 or a positive error number denoting the error in greater detail will be entered in the error queue 4 Execution Error This bit is set if the syntax of a received ...

Page 255: ...ry bit This bit is set if one of the sensors is being calibrated 1 to 3 Not used 4 Operation Measuring Status Register summary bit This bit is set if one of the sensors is performing a measurement 5 Operation Trigger Status Register summary bit This bit is set if a sensor is in the WAIT_FOR_TRG state i e waiting for a trigger event 6 Not used 7 to 9 Not used 10 Operation Sense Status Register summ...

Page 256: ...s started or completed since the last readout of this register The Operation Calibration Status Register can be read by the following commands STATus OPERation CALibrating SUMMary CONDition STATus OPERation CALibrating SUMMary EVENt Table 6 21 Meaning of bits used in the Operation Calibrating Status Register Bit No Meaning 0 Not used 1 Sensor A is being calibrated 2 Sensor B is being calibrated 3 ...

Page 257: ...f this register The Operation Measuring Status Register can be read by the following commands STATus OPERation MEASuring SUMMary CONDition STATus OPERation MEASuring SUMMary EVENt Table 6 22 Meaning of bits used in the Operation Measuring Status Register Bit No Meaning 0 Not used 1 Sensor A measuring Sensor A is performing a measurement 2 Sensor B measuring Sensor B is performing a measurement 3 S...

Page 258: ...ion TRIGger SUMMary EVENt Table 6 23 Meaning of bits used in the Operation Status Register Bit No Meaning 0 Not used 1 Sensor A waiting for trigger Sensor A is in the WAIT_FOR_TRG state and is waiting for a trigger event that will change it to the MEASURING state 2 Sensor B waiting for trigger Sensor B is in the WAIT_FOR_TRG state and is waiting for a trigger event that will change it to the MEASU...

Page 259: ...ions is met the supply voltage is switched on power up the sensor was just connected a reset was performed RST or SYSTem PRESet The Operation Sense Status Register can be read by the following commands STATus OPERation SENSe SUMMary CONDition STATus OPERation SENSe SUMMary EVENt Table 6 24 Meaning of bits used in the Operation Sense Status Register Bit No Meaning 0 Not used 1 Sensor A initializing...

Page 260: ... bits used in the Operation Lower Limit Fail Status Register Bit No Meaning 0 Not used 1 Window 1 Lower Limit Fail The measured value returned by the first Calculate block drops below the lower limit value 2 Window 2 Lower Limit Fail The measured value returned by the second Calculate block drops below the lower limit value 3 Window 3 Lower Limit Fail The measured value returned by the third Calcu...

Page 261: ...eaning of bits used in the Operation Upper Limit Fail Status Register Bit No Meaning 0 Not used 1 Window 1 Upper Limit Fail The measured value returned by the first Calculate block exceeds the upper limit value 2 Window 2 Upper Limit Fail The measured value returned by the second Calculate block exceeds the upper limit value 3 Window 3 Upper Limit Fail The measured value returned by the third Calc...

Page 262: ...he measurement data of sensor B is corrupt 3 Sensor C Power The measurement data of sensor C is corrupt 4 Sensor D Power The measurement data of sensor D is corrupt 5 Sensor A please zero The zero correction for sensor A is no longer correct and should be repeated 6 Sensor B please zero The zero correction for sensor B is no longer correct and should be repeated 7 Sensor C please zero The zero cor...

Page 263: ...es returned by Calculate block 1 are corrupt 2 Window 2 Power The measured values returned by Calculate block 2 are corrupt 3 Window 3 Power The measured values returned by Calculate block 3 are corrupt 4 Window 4 Power The measured values returned by Calculate block 4 are corrupt 5 Window 5 Power The measured values returned by Calculate block 5 are corrupt 6 Window 6 Power The measured values re...

Page 264: ...g of bits used in the Questionable Calibration Status Register Bit No Meaning 0 Not used 1 Sensor A Calibration Zeroing of sensor A was not successful 2 Sensor B Calibration Zeroing of sensor B was not successful 3 Sensor C Calibration Zeroing of sensor C was not successful 4 Sensor D Calibration Zeroing of sensor D was not successful 5 to 14 Not used 15 Bit 15 will never be used Use of Status Rep...

Page 265: ...ing the controller by an SRQ that a measurement has been completed Set bit 7 summary bit of Status Operation Register in the SRE Set bit 4 measuring in the ENABle register of the Status Operation Register Set bit 4 in the NTRansition register of the Status Operation Register to ensure that the transition of measuring bit 4 from 1 to 0 end of measurement is also recorded in the EVENt register The d...

Page 266: ...e description of the SCPI commands command system STATus The queries always yield a number representing the bit pattern of the queried register This number is evaluated by the controller program Queries are mainly used after an SRQ to obtain detailed information about the cause of the SRQ Error Queue Query Each error in the device causes an entry in the error queue The entries in the error queue a...

Page 267: ...s Power On Power On Status Clear PSC Result Effect 0 1 DCL SDC Device Clear Selected Device Clear RST or SYSTem PRESet STATus PRESet CLS Clear STB Status Byte and ESR Standard Event Status Register yes yes Clear SRE Service Request Enable and ESE Standard Event Status Enable yes Clear PPE Parallel Poll Enable yes Clear EVENt register yes yes Clear ENABle register of all OPERation and QUEStionable ...

Page 268: ... 30 No query DATE year month day INFO string Query only ERRor Query only KEY NR1 character_value No query PRESet No query SENSor 1 4 INFO string Query only RESet No query TEST Query only SPEed NORMal FAST No query STANdard CATalog No query PRESet string No query PWSettings ON OFF TRIGger SOURce INT EXT TIME hour minute second VERSion Query only SYSTem BEEPer IMMediate Generates an audible signal v...

Page 269: ... is not changed by RST SYSTem COMMunicate GPIB SELF ADDRess NR1 Sets the address with which the R S NRP can be addressed via the IEC IEEE bus The address is factory set to 20 and is not changed by a reset Value range 0 30 RST value This setting is not changed by RST SYSTem DATE year month day Parameter Value range year 2000 2100 month 1 January 12 December day 1 31 Sets the date Since the R S NRP ...

Page 270: ...NRP if Ethernet option has been installed RAMSize RAM size ROMSize ROM size CPUClock Clock frequency of processor CPLDVersion Version of CPLD chip PICVersion Version of PIC Chip SYSTem ERRor This query returns error numbers and text from the error event queue of the R S NRP A specific error number with text is entered in the error event queue for each error that occurs in the R S NRP The queue fun...

Page 271: ...ither in plain text character_value or by a key code NR1 Æ Table 6 32 Table 6 32 Valid parameter values for the SYSTem KEY command Simulated front panel key character_value NR1 Softkey toggle 1 left SK1L 1 Softkey toggle 1 right SK1R 2 Softkey toggle 2 left SK2L 3 Softkey toggle 2 right SK2R 4 Softkey toggle 3 left SK3L 5 Softkey toggle 3 right SK3R 6 Softkey toggle 4 left SK4L 7 Softkey toggle 4 ...

Page 272: ...2 6 97 E 3 Simulated front panel key character_value NR1 DEL 1TRIG DELete 18 MENU ENTer 19 ESC LOCAL ESCape 20 â UP 21 ô DOWN 22 û LEFT 23 ê RIGHt 24 Note The R S NRP can be switched off via remote control by means of the SYST KEY POWER command ...

Page 273: ...nitoring function for lower limit value CALC 1 8 MATH Æ For command description see 6 26 The calculate block returns the measured value of the sensor assigned to the primary channel CALC 1 8 REL 0 DBM or 0 DB CALC 1 8 REL POW 0 DBM CALC 1 8 REL RAT 0 DB CALC 1 8 REL STAT OFF Measurements are not converted into a reference value DISP ILL Display lighting remains unchanged and can be activated by pr...

Page 274: ...s violated OUTP TTL FAIL HIGH OUTP TTL HVOLT is applied to the TTL output if a limit is violated OUTP TTL FEED CALC1 LIM The TTL output is fed by the limit monitoring function of calculate block 1 OUTP TTL HVOLT 3 3 V High voltage at TTL output OUTP TTL LVOLT 0 0 V Low voltage at TTL output SENS 1 4 AVER ON OFF Depending on sensor SENS 1 4 AVER COUN NR1 Depending on sensor SENS 1 4 AVER COUN AUTO ...

Page 275: ...f Depending on sensor SENS 1 4 TRAC AVER COUN AUTO RES NRf Depending on sensor SENS 1 4 TRAC AVER COUN AUTO POIN NR1 Depending on sensor SENS 1 4 TRAC AVER COUN AUTO NSR NRf Depending on sensor SENS 1 4 TRAC AVER COUN AUTO TYPE RES NSR Depending on sensor SENS 1 4 TRAC AVER TCON MOV REP PRES and SYST PRES RST SENS 1 4 TRAC OFFS TIME NRf Depending on sensor SENS 1 4 TRAC POINt NR1 Depending on sens...

Page 276: ...t of view of the R S NRP base unit the sensors are stand alone measuring devices They communicate with the R S NRP via a command set complying with SCPI SYST SENS 1 4 RES prompts the base unit to send an RST to the sensor in question Measurements in progress are interrupted SYSTem SENSor 1 4 TEST Performs a sensor test and returns a list of strings separated by commas The contents of this test pro...

Page 277: ... Preserve Window Settings determines whether the window system is also configured with the calculate blocks OFF or whether exclusively sensor parameters are set ON RST value OFF SYSTem STANdard TRIGger SOURce INT EXT If SYST STAN PRES string is used this command determines whether the sensors are set to internal INT or external EXT triggering RST value INT SYSTem TIME hour minute second Parameter ...

Page 278: ...Mediate INTernal ABORt 1 4 ALL Immediately sets the respective sensors to the IDLE state Measurements in progress are interrupted If INIT CONT ON is set a new measurement is immediately started since the trigger system is not influenced INITiate 1 4 ALL CONTinuous ON OFF Selects either single shot or continuous free running measurement cycles In the course of a measurement cycle a sensor passes th...

Page 279: ...ommand is being executed Note INIT IMM invalidates all previous measuring results A FETCh command following INIT will thus always return a new measurement result Error messages 28 Sensor not idle The sensor is not in the IDLE state TRIGger ALL SYNChronize STATe ON OFF Using this command one can assure that measurements with externally triggered sensors start synchronously As the initiation of meas...

Page 280: ...fter the sensor has settled This is important when thermal sensors are used The automatically determined delay is ignored when a longer period was set with TRIG 1 4 DEL RST value depending on sensor TRIGger 1 4 ALL HOLDoff float_value Defines a period after a trigger event within which all further trigger events are ignored Unit S Value range depending on sensor RST value depending on sensor TRIGg...

Page 281: ...y be started with TRIG Error messages 211 Trigger ignored The sensor is not in the WAIT_FOR_TRG state TRIGger 1 4 ALL LEVel float_value Determines the power a trigger signal must exceed TRIG SLOP POS or fall short of TRIG SLOP NEG before a trigger event is detected This setting is only used for the trigger signal source TRIG SOUR INTernal Unit DBM W Default unit DBM Value range depending on sensor...

Page 282: ...e of the signal is to be used for triggering Waiting for a trigger event can be skipped by TRIG IMM IMMediate The sensor does not remain in the WAIT_FOR_TRG state but immediately changes to the MEASURING state HOLD A measurement can only be triggered when the command TRIG IMM is executed INTernal The sensor determines the trigger time by means of the signal to be measured When this signal exceeds ...

Page 283: ...ALC LIM LOW DISP MET UPP DISP MET LOW OUTP REC LIM LOW OUTP REC LIM UPP RST value DBM UNIT 1 8 POWer RATio DB DPCT O Selects the output unit for the measured power ratio values This setting also determines the unit for the parameters of the following commands CALC REL CALC LIM UPP CALC LIM LOW DISP MET UPP DISP MET LOW OUTP REC LIM LOW OUTP REC LIM UPP RST value DB Error messages If the compute fu...

Page 284: ...6 11 CONFigure 1 8 SCALar POWer AVG SWR 6 11 CONFigure 1 8 SCALar POWer AVG RLOSs 6 11 CONFigure 1 8 SCALar POWer AVG REFLection 6 11 CONFigure 1 8 SCALar POWer TSLot AVG 6 11 CONFigure 1 8 SCALar POWer TSLot AVG RELative 6 11 CONFigure 1 8 SCALar POWer TSLot AVG DIFFerence 6 11 CONFigure 1 8 SCALar POWer TSLot AVG DIFFerence RELative 6 11 CONFigure 1 8 SCALar POWer TSLot AVG SUM 6 11 CONFigure 1 ...

Page 285: ...tive 6 11 CONFigure 1 8 ARRay POWer AVG DIFFerence 6 11 CONFigure 1 8 ARRay POWer AVG DIFFerence RELative 6 11 CONFigure 1 8 ARRay POWer AVG SUM 6 11 CONFigure 1 8 ARRay POWer AVG SUM RELative 6 11 CONFigure 1 8 ARRay POWer AVG RATio 6 11 CONFigure 1 8 ARRay POWer AVG RATio RELative 6 11 CONFigure 1 8 ARRay POWer AVG SWR 6 11 CONFigure 1 8 ARRay POWer AVG RLOSs 6 11 CONFigure 1 8 ARRay POWer AVG R...

Page 286: ... 1 8 SCALar POWer TSLot AVG RLOSs 6 11 FETCh 1 8 SCALar POWer TSLot AVG REFLection 6 11 FETCh 1 8 SCALar POWer BURSt AVG 6 11 FETCh 1 8 SCALar POWer BURSt AVG RELative 6 11 FETCh 1 8 SCALar POWer BURSt AVG DIFFerence 6 11 FETCh 1 8 SCALar POWer BURSt AVG DIFFerence RELative 6 11 FETCh 1 8 SCALar POWer BURSt AVG SUM 6 11 FETCh 1 8 SCALar POWer BURSt AVG SUM RELative 6 11 FETCh 1 8 SCALar POWer BURS...

Page 287: ... 1 8 SCALar POWer AVG SUM RELative 6 11 READ 1 8 SCALar POWer AVG RATio 6 11 READ 1 8 SCALar POWer AVG RATio RELative 6 11 READ 1 8 SCALar POWer AVG SWR 6 11 READ 1 8 SCALar POWer AVG RLOSs 6 11 READ 1 8 SCALar POWer AVG REFLection 6 11 READ 1 8 SCALar POWer TSLot AVG 6 11 READ 1 8 SCALar POWer TSLot AVG RELative 6 11 READ 1 8 SCALar POWer TSLot AVG DIFFerence 6 11 READ 1 8 SCALar POWer TSLot AVG ...

Page 288: ...n 6 11 READ 1 8 ARRay POWer AVG 6 11 READ 1 8 ARRay POWer AVG RELative 6 11 READ 1 8 ARRay POWer AVG DIFFerence 6 11 READ 1 8 ARRay POWer AVG DIFFerence RELative 6 11 READ 1 8 ARRay POWer AVG SUM 6 11 READ 1 8 ARRay POWer AVG SUM RELative 6 11 READ 1 8 ARRay POWer AVG RATio 6 11 READ 1 8 ARRay POWer AVG RATio RELative 6 11 READ 1 8 XTIMe POWer 6 11 MEASure 1 8 6 11 MEASure 1 8 SCALar POWer AVG 6 1...

Page 289: ...e 1 8 SCALar POWer BURSt AVG DIFFerence 6 11 MEASure 1 8 SCALar POWer BURSt AVG DIFFerence RELative 6 11 MEASure 1 8 SCALar POWer BURSt AVG RATio 6 11 MEASure 1 8 SCALar POWer BURSt AVG RATio RELative 6 11 MEASure 1 8 SWR 6 11 MEASure 1 8 REFLection 6 11 MEASure 1 8 RLOSs 6 11 MEASure 1 8 ARRay POWer AVG 6 11 MEASure 1 8 ARRay POWer AVG RELative 6 11 MEASure 1 8 ARRay POWer AVG DIFFerence 6 11 MEA...

Page 290: ...te 1 8 RELative MAGNitude 6 27 CALCulate 1 8 RELative MAGNitude AUTO 6 28 CALCulate 1 8 RELative POWer MAGNitude 6 28 CALCulate 1 8 RELative RATio MAGNitude 6 28 CALCulate 1 8 RELative STATe 6 28 CALibration command CALibration 1 4 ZERO AUTO 6 29 DISPlay command DISPlay ILLumination 6 30 DISPlay ERRorlist STATe 6 31 DISPlay MESSage STATe 6 31 DISPlay MESSage TEXT CLEar 6 31 DISPlay MESSage TEXT DA...

Page 291: ...g TABLe 6 40 MEMory CLEar NAME 6 40 MEMory CLEar TABLe 6 40 MEMory FREE ALL 6 40 MEMory FREE STATe 6 41 MEMory FREE TABLe 6 41 MEMory NSTates 6 41 MEMory STATe CATalog 6 41 MEMory STATe DEFine 6 41 MEMory TABLe FREQuency 6 41 MEMory TABLe FREQuency POINts 6 42 MEMory TABLe GAIN MAGNitude 6 42 MEMory TABLe GAIN MAGNitude POINts 6 42 MEMory TABLe MOVE 6 42 MEMory TABLe SELect 6 43 OUTPut command OUT...

Page 292: ... SELect 6 55 SENSe 1 4 CORRection FDOT STATe 6 55 SENSe 1 4 CORRection OFFSet 6 54 SENSe 1 4 CORRection OFFSet STATe 6 54 SENSe 1 4 FREQuency CW FIXed 6 55 SENSe 1 4 FUNCtion ON 6 56 SENSe 1 4 POWer AVG APERture 6 57 SENSe 1 4 POWer AVG BUFFer SIZE 6 57 SENSe 1 4 POWer AVG BUFFer STATe 6 57 SENSe 1 4 POWer TSLot AVG COUNt 6 57 SENSe 1 4 POWer TSLot AVG WIDTh 6 60 SENSe 1 4 POWer BURSt DTOLerance 6...

Page 293: ... SENSe 1 4 TRACe POINts 6 63 SENSe 1 4 TRACe REALtime 6 64 SENSe 1 4 TRACe TIME 6 64 SENSe 1 4 TIMing EXCLude STARt 6 64 SENSe 1 4 TIMing EXCLude STOP 6 64 STATus commands STATus DEVice EVENt 6 69 STATus DEVice CONDition 6 69 STATus DEVice ENABle 6 69 STATus DEVice NTRansition 6 69 STATus DEVice PTRansition 6 69 STATus OPERation EVENt 6 69 STATus OPERation CONDition 6 69 STATus OPERation ENABle 6 ...

Page 294: ...EVENt 6 69 STATus OPERation MEASuring SUMMary CONDition 6 69 STATus OPERation MEASuring SUMMary ENABle 6 69 STATus OPERation MEASuring SUMMary NTRansition 6 69 STATus OPERation MEASuring SUMMary PTRansition 6 69 STATus OPERation SENSe SUMMary EVENt 6 69 STATus OPERation SENSe SUMMary CONDition 6 69 STATus OPERation SENSe SUMMary ENABle 6 69 STATus OPERation SENSe SUMMary NTRansition 6 69 STATus OP...

Page 295: ...le 6 69 STATus QUEStionable POWer SUMMary NTRansition 6 69 STATus QUEStionable POWer SUMMary PTRansition 6 69 STATus QUEStionable WINDow SUMMary EVENt 6 69 STATus QUEStionable WINDow SUMMary CONDition 6 69 STATus QUEStionable WINDow SUMMary ENABle 6 69 STATus QUEStionable WINDow SUMMary NTRansition 6 69 STATus QUEStionable WINDow SUMMary PTRansition 6 69 STATus PRESet 6 69 SYSTem commands SYSTem B...

Page 296: ...ediate 6 103 TRIGger ALL SYNChronize STATe TRIGger 1 4 ALL ATRigger STATe 6 104 TRIGger 1 4 ALL COUNt 6 105 TRIGger 1 4 ALL DELay 6 105 TRIGger 1 4 ALL DELay AUTO 6 105 TRIGger 1 4 ALL HOLDoff 6 105 TRIGger 1 4 ALL HYSTeresis 6 105 TRIGger 1 4 ALL IMMediate 6 106 TRIGger 1 4 ALL LEVel 6 106 TRIGger 1 4 ALL SLOPe 6 106 TRIGger 1 4 ALL SOURce 6 107 UNIT commands UNIT 1 8 POWer 6 108 UNIT 1 8 RATio 6...

Page 297: ... NRP and has the same effect as DISPlay ILLUmination DISPlay SCREen FORMat NUMeric 1 2 Is not implemented in the R S NRP INITiate CONTinuous SEQUence 1 2 IMMediate SEQUence 1 2 The SEQUence node is not implemented in the R S NRP MEMory TABLe GAIN Agilent specifies the values without a unit the unit PCT percent is implicitly assumed The units DB dB DPCT and O unit 1 can be specified in the R S NRP ...

Page 298: ...ope mode can only be queried via the high level commands FETCh READ MEAS and CALC DATA TRACe UNIT The UNIT node is only globally available in the R S NRP and affects all measurement results including Scope data and the unitless command parameters of the commands CALC LIM LOW CALC LIM UPP DISP MET ANAL LOW DISP MET ANAL UPP OUTP REC LIM LOW and OUTP REC LIM UPP TRIGger SEQUence 1 2 The R S NRP does...

Page 299: ...nection of up to 15 devices Max length of connecting cables 15 m length of single cable 2 m Wired OR links when several devices are connected in parallel DIO1 DIO2 DIO3 DIO4 EOI DAV NRFD NDAC IFC SRQ ATN Shield DIO7 REN GND 6 logic GND GND 10 GND 8 DIO5 DIO6 DIO8 GND 11 GND 9 GND 7 24 13 14 15 16 17 18 19 20 21 22 23 1 12 11 10 9 8 7 6 5 4 3 2 Fig 6 14 Pin assignment of IEC IEEE bus interface Bus ...

Page 300: ...ve LOW allows switchover to the remote control mode EOI End or Identify together with ATN has two functions ATN HIGH active LOW marks the end of data transmission ATN LOW active LOW triggers a parallel poll 3 Handshake bus with three lines DAV Data Valid Active LOW signals a valid data byte on the data bus NRFD Not Ready For Data Active LOW signals that one of the connected devices is not ready to...

Page 301: ...Listen Only mode unaddressed for MSA and TPAS recognizes END and EOS LE3 Extended Listener function Listen Only mode unaddressed for MSA and TPAS recognizes END and EOS T5 Talker function capability to respond to serial poll Talk Only mode unaddressed on MLA sends END or EOS TE5 Extended talker function capability to respond to serial poll Talk Only mode unaddressed for MLA and LPAS sends END or E...

Page 302: ... change the device setting IFC Interface Clear Resets the interfaces to their initial condition LLO Local Lockout Manual switchover to LOCAL is disabled SPE Serial Poll Enable Ready for serial poll SPD Serial Poll Disable End of serial poll PPU Parallel Poll Unconfigure End of parallel poll query status Addressed Commands Addressed commands are in the code range 0x00 to 0x0F hex They only affect d...

Page 303: ... following values are provided for the string parameter GSM EDGE NADC UPLINK NADC DOWNLINK PDC UPLINK PDC DOWNLINK DECT WCDMA 3GPP FDD WCDMA 3GPP TDD DL WCDMA 3GPP TDD UL TD SCDMA Bluetooth DH1 Bluetooth DH3 Bluetooth DH5 CDMA2000 Note The tables list only the sensor parameters If SYSTem STANdard PWSettings OFF is set the calculate blocks CALCulate the window system DISPlay and the output unit UNI...

Page 304: ... 20 µs Exclude Time End SENS TIM EXCL STOP 30 µs Number Of Timeslots SENS TSL COUN 8 Timeslot Width SENS TSL WIDT 577 µs Timegate Offset SENS TGAT OFFS TIME 1 20 µs 2 2 328 ms Timegate Time SENS TGAT TIME 1 527 µs 2 527 µs Scope Offset Time SENS TRAC OFFS TIME 100 µs Scope Capture Time SENS TRAC TIME 5 ms Scope Number Of Points SENS TRAC POIN 312 Scope Realtime SENS TRAC REAL OFF Trigger Delay TRI...

Page 305: ... 12 6 130 E 3 NADC DOWNLINK Sensor parameter Remote control command in short form Value Sensor Mode SENS FUNC POW AVG Integration Time SENS APER 40 ms Duty Cycle Correction SENS DCYC STAT OFF Smoothing SENS SMO OFF Trigger Source TRIG SOUR EXT ...

Page 306: ... Exclude Time End SENS TIM EXCL STOP 140 µs Number Of Timeslots SENS TSL COUN 6 Timeslot Width SENS TSL WIDT 6 667 ms Timegate Offset SENS TGAT OFFS TIME 1 130 µs 2 20 130 ms Timegate Time SENS TGAT TIME 1 6 390 ms 2 6 390 ms Scope Offset Time SENS TRAC OFFS TIME 500 µs Scope Capture Time SENS TRAC TIME 42 ms Scope Number Of Points SENS TRAC POIN 312 Scope Realtime SENS TRAC REAL OFF Trigger Delay...

Page 307: ... 12 6 132 E 3 PDC DOWNLINK Sensor parameter Remote control command in short form Value Sensor Mode SENS FUNC POW AVG Integration Time SENS APER 40 ms Duty Cycle Correction SENS DCYC STAT OFF Smoothing SENS SMO OFF Trigger Source TRIG SOUR EXT ...

Page 308: ...Exclude Time End SENS TIM EXCL STOP 135 µs Number Of Timeslots SENS TSL COUN 6 Timeslot Width SENS TSL WIDT 6 667 ms Timegate Offset SENS TGAT OFFS TIME 1 125 µs 2 20 125 ms Timegate Time SENS TGAT TIME 1 6 406 ms 2 6 406 ms Scope Offset Time SENS TRAC OFFS TIME 500 µs Scope Capture Time SENS TRAC TIME 42 ms Scope Number Of Points SENS TRAC POIN 312 Scope Realtime SENS TRAC REAL OFF Trigger Delay ...

Page 309: ... Time End SENS TIM EXCL STOP 25 µs Number Of Timeslots SENS TSL COUN 24 Timeslot Width SENS TSL WIDT 416 667 µs Timegate Offset SENS TGAT OFFS TIME 1 15 µs 2 5 015 ms Timegate Time SENS TGAT TIME 1 348 055 ms 2 348 000 ms Scope Offset Time SENS TRAC OFFS TIME 200 µs Scope Capture Time SENS TRAC TIME 10 250 ms Scope Number Of Points SENS TRAC POIN 312 Scope Realtime SENS TRAC REAL OFF Trigger Delay...

Page 310: ...sor parameter Remote control command in short form Value Sensor Mode SENS FUNC POW AVG Integration Time SENS APER 10 ms Duty Cycle Correction SENS DCYC STAT OFF Smoothing SENS SMO OFF Filter SENS AVER COUN AUTO OFF Filter Length SENS AVER COUN 16 Trigger Source TRIG SOUR EXT ...

Page 311: ...µs Exclude Time End SENS TIM EXCL STOP 40 µs Number Of Timeslots SENS TSL COUN 15 Timeslot Width SENS TSL WIDT 666 667 µs Timegate Offset SENS TGAT OFFS TIME 1 25 µs 2 5 358 ms Timegate Time SENS TGAT TIME 1 601 667 µs 2 602 µs Scope Offset Time SENS TRAC OFFS TIME 200 µs Scope Capture Time SENS TRAC TIME 10 250 ms Scope Number Of Points SENS TRAC POIN 312 Scope Realtime SENS TRAC REAL OFF Trigger...

Page 312: ...µs Exclude Time End SENS TIM EXCL STOP 40 µs Number Of Timeslots SENS TSL COUN 15 Timeslot Width SENS TSL WIDT 666 667 µs Timegate Offset SENS TGAT OFFS TIME 1 15 µs 2 5 348 ms Timegate Time SENS TGAT TIME 1 611 667 µs 2 612 µs Scope Offset Time SENS TRAC OFFS TIME 200 µs Scope Capture Time SENS TRAC TIME 10 250 ms Scope Number Of Points SENS TRAC POIN 312 Scope Realtime SENS TRAC REAL OFF Trigger...

Page 313: ...imegate Offset SENS TGAT OFFS TIME 1 20 µs 2 710 µs 3 835 µs 4 5 970 ms Timegate Time SENS TGAT TIME 1 620 µs 2 30 µs 3 85 µs 4 620 µs Scope Offset Time SENS TRAC OFFS TIME 200 µs Scope Capture Time SENS TRAC TIME 10 250 ms Scope Number Of Points SENS TRAC POIN 312 Scope Realtime SENS TRAC REAL OFF Trigger Delay TRIG DEL 0 s Trigger Level TRIG LEV 30 dBm Trigger Source TRIG SOUR INT Trigger Slope ...

Page 314: ...clude Time Start SENS TIM EXCL STAR 10 µs Exclude Time End SENS TIM EXCL STOP 15 µs Timegate Offset SENS TGAT OFFS TIME 1 10 µs 2 660 µs Timegate Time SENS TGAT TIME 1 341 µs 2 341 µs Scope Offset Time SENS TRAC OFFS TIME 30 µs Scope Capture Time SENS TRAC TIME 1 280 ms Scope Number Of Points SENS TRAC POIN 312 Scope Realtime SENS TRAC REAL OFF Trigger Delay TRIG DEL 0 s Trigger Level TRIG LEV 30 ...

Page 315: ...lude Time Start SENS TIM EXCL STAR 10 µs Exclude Time End SENS TIM EXCL STOP 15 µs Timegate Offset SENS TGAT OFFS TIME 1 10 µs 2 1 885 ms Timegate Time SENS TGAT TIME 1 1 597 ms 2 351 µs Scope Offset Time SENS TRAC OFFS TIME 30 µs Scope Capture Time SENS TRAC TIME 2 530 ms Scope Number Of Points SENS TRAC POIN 312 Scope Realtime SENS TRAC REAL OFF Trigger Delay TRIG DEL 0 s Trigger Level TRIG LEV ...

Page 316: ...clude Time Start SENS TIM EXCL STAR 10 µs Exclude Time End SENS TIM EXCL STOP 15 µs Timegate Offset SENS TGAT OFFS TIME 1 10 µs 2 3 135 ms Timegate Time SENS TGAT TIME 1 2 845 ms 2 351 µs Scope Offset Time SENS TRAC OFFS TIME 30 µs Scope Capture Time SENS TRAC TIME 2 530 ms Scope Number Of Points SENS TRAC POIN 312 Scope Realtime SENS TRAC REAL OFF Trigger Delay TRIG DEL 0 s Trigger Level TRIG LEV...

Page 317: ... parameter Remote control command in short form Value Sensor Mode SENS FUNC POW AVG Integration Time SENS APER 80 ms Duty Cycle Correction SENS DCYC STAT OFF Smoothing SENS SMO OFF Filter SENS AVER COUN AUTO OFF Filter Length SENS AVER COUN 16 Trigger Source TRIG SOUR EXT ...

Page 318: ...sults of two sensors I 3 Selecting a measurement mode I 4 Selecting the output unit for measured values I 6 Division of MEAS I 7 Trigger state system I 9 Logic relationship of command systems SENSe CALCulate and UNIT I 11 Measuring with low level commands I 12 The simplest measurement I 12 Configuration of the trigger system I 12 Configuration of sensor settings I 16 Configuration of CALCulate blo...

Page 319: ...R S NRP 1144 1400 12 I Annex 2 E 2 Figs Fig I 1 Overview of basic relationships in the trigger state system I 10 Fig I 2 Processing of measured values in the R S NRP I 11 Fig I 3 Meaning of settings for TRIG HOLD and TRIG DEL I 14 ...

Page 320: ...d value is to use the high level measurement command MEAS which configures sensor 1 in the ContAv mode starts a measurement and always outputs a result that is stored in the output queue The following settings are performed INIT CONT OFF TRIG SOUR IMM TRIG COUN 1 TRIG DEL AUTO ON SENS AVER STAT ON SENS AVER COUN AUTO ON SENS AVER COUN AUTO TYPE RES SENS AVER COUN AUTO RES 3 CALC MATH SENS1 CALC RE...

Page 321: ...OW float_value is used to define such a reference value CALC REL POW 0 DBM MEAS REL All measured values are then divided by 0 dBm 1 mW prior to being transferred to the user The following section describes an extension of the MEAS command in which the result no longer carries a power unit but represents a power ratio The reference value also must have a power unit and be set with CALC REL RAT The ...

Page 322: ... these commands since two sensors have to be entered in the source_list Example MEAS RAT DEF 3 1 4 A CALCulate block is used for processing the measured values Each CALCulate block has two input channels called the primary and secondary channel In the above example the primary channel is assigned sensor 1 and the secondary channel sensor 4 via the source_list The measurement result is the ratio of...

Page 323: ...ement is carried out with sensor 1 default The instrument is triggered by an external signal which must be routed to the R S NRP rear panel via the trigger input The measurement result is a list of 8 measured values separated by a comma for the timeslots MEAS BURSt 5 us 10 us 0 us DEF 3 2 Sensor 2 measures in the BurstAv mode Triggering in response to a rising edge is internal At the beginning of ...

Page 324: ...a list of 1000 measured values separated by a comma The keywords for processing two sensors can be added to the MEAS TSL MEAS BURS and MEAS ARRay commands but the SWR RLOS and REFL functions are not available Example MEAS TSL RAT 577 us 8 18 us 18 us DEF 3 1 3 The above timeslot example is extended to two sensors The measurement result is a list of 8 measured values separated by a comma for the 8 ...

Page 325: ... the following commands UNIT POWer DBM W DBUV and UNIT RATio DB DPCT O The default settings are DBM for power values and DB for power ratios Physical unit SCPI notation Meaning dBm DBM Power in dB referenced to 1 mW x W 10 log x 1 mW dBm Watt W dBµV DBUV Power in dB referred to 1µV 2 50 Ω x dBm x 107 dBµV dB DB DPCT Deviation from 100 in x x 100 1 O When the SWR RLOS and REFL functions are used th...

Page 326: ...Ch may select another calculation function if the measurement can be evaluated with the available measured data Example The following sequence of commands provides the difference between measured values from sensors 1 and 2 by means of FETCh DIFF which measure in the ContAv mode as the default setting CONF DIFF INIT ALL FETCh DIFF OK FETCh RAT OK FETCh BURst Å 221 Settings conflict The FETCh RAT c...

Page 327: ...Annex Remote Control Commands R S NRP 1144 1400 12 Annex I 8 E 2 Example CONF TRIG SOUR BUS INIT FETCh Å 214 Trigger deadlock TRG or GET is not possible if FETCh is waiting ...

Page 328: ...surements to be continuously displayed Thus the IDLE state is exited and the instrument is again in this state if INIT CONT OFF is sent via the remote control INITIATED This state is a transition state which is exited immediately after it has been entered It has been defined so as to allow the user to decide whether the next measurement cycle is to be immediately started INIT CONT ON or all cycles...

Page 329: ...T ON OFF MEASURING WAIT_FOR_TRG INITIATED IDLE RST PowerOn INIT IMM INIT CONT ON Fig I 1 Overview of basic relationships in the trigger state system Fig I 1 Overview of basic relationships in the trigger state system shows the basic structure of the trigger system It is possible to improve the sequence of measurement using the commands from the TRIGger command system ...

Page 330: ... to two sensors are processed and made available to the user in the unit defined by UNIT CALC 1 8 MATH EXPR SENSn SENSn SENSm SENSn SENSm REFL SWR RLOS CALC 1 8 REL UNIT 1 8 POW UNIT 1 8 RAT Data output output queue in REMOTE mode or display in LOCAL mode Measured values raw data CALCulate UNIT SENSe SENS 1 4 Fig I 2 Processing of measured values in the R S NRP Note The high level commands and the...

Page 331: ...lues CALulate RELative STATe OFF Logarithmic units are used UNIT POWer dBm and UNIT RATio dB The simplest measurement The fastest way to obtain a result is to use the following sequence of commands RST INIT FETCh Normally RST will set the ContAv mode The concept of smart sensor technology provides that each sensor determines the reset values of the assigned SENSe and TRIGger block Thus another mod...

Page 332: ...ure is provided by standard IEEE 488 2 which stipulates that TRG or GET can also be used to perform complete measurements This includes the generation of an answer the measurement result In the R S NRP TRG does not have this meaning TRG only executes a trigger event and thus only causes the status transitions from WAIT_FOR_TRG to MEASURING TRG delivers no measurement result and has no effect if TR...

Page 333: ...t have not yet decayed from causin triggering by mistake after the measurement has been completed This makes sense especially with internal triggering BurstAv mode Ignored trigger event Power Time TRIG HOLDoff TRIG DELay Trigger event Measurement Trigger level Fig I 3 Meaning of settings for TRIG HOLD and TRIG DEL It is also possible to exclude time domains from the integration of the measured val...

Page 334: ...f the measurement is recognized when the power level falls below the trigger level This is not desirable with modulated signals or short interruptions and also when the level just falls slightly below the trigger level SENS BURS DTOL is used to define a time span during which the power to be measured in the BurstAv mode must remain below the trigger level so that the end of the burst can be detect...

Page 335: ...wer is integrated as a measurement result Example RST SENS FUNC POW AVG SENS APER 10 MS INIT FETCh Timeslot mode SENS FUNC POW TSL AVG After the trigger event the power is measured in timeslots the number of which is defined with SENS TSL COUN The length of the timeslots is set with SENS TSL WIDT Example RST SENS FUNC POW TSL AVG SENS TSL WIDT 577 US SENS TSL COUN 8 TRIG SOUR EXT INIT FETCh BurstA...

Page 336: ...he sampling values then undergo two stage filtering before they are made available as measured values The first filter stage is a time integration The integration time is either set explicitly ContAv mode SENS APER Timeslot mode SENS TSL WIDT and Scope mode SENS SWE POIN and TIME or determined automatically BurstAv mode Filtering averaging is the second filter stage which is configured via the com...

Page 337: ...TO ON switches on filter length automatic mode SENS AVER COUN AUTO TYPE NSR sets automatic mode to NSRatio SENS AVER COUN AUTO NSR 0 01 DB maximum noise component in the result SENS AVER COUN AUTO MTIM 10 S but does not measure more than 10 s INIT FETCh All intermediate pushed values delivered by the first filter stage are stored in the filter The earliest measured value is ousted out of the filte...

Page 338: ...an be stored A frequency dependent correction value is determined by linear interpolation in the units Hz and dB using the signal frequency defined with SENS FREQ The interpolated correction value can be queried with SENS FDOF for checking purposes Example RST MEM TABL MOVE Table 1 Splitter renames first table MEM TABL SEL Splitter selects table MEM TABL CLEar deletes selected table MEM TABL FREQ ...

Page 339: ... and relative measurement The calculation functions mentioned in connection with high level commands are internally implemented via commands CALC MATH and CALC REL STAT Keyword for selecting a calculation function with high level commands Corresponding low level commands n m 1 2 3 4 DIFF Difference CALC MATH SENSn SENSm REL STAT OFF DIFF REL Difference with reference value CALC MATH SENSn SENSm RE...

Page 340: ...Consequently the following list can only serve as a guideline for minimizing the measurement time SYST SPEed FAST deactivates screen content SENS AVER STAT OFF deactivates filtering of measured values SENS FUNC POW AVG ContAv mode SENS BUFF STAT OFF no buffered measurements SENS APER MIN integration time as short as possible SENS RANG AUTO OFF automatic range selection OFF SENS CORR OFFS STAT OFF ...

Page 341: ...R S NRP Table of Contents Chapter 8 1144 1400 12 I 8 1 E 1 Table of Contents 8 Maintenance 8 1 Sensor test 8 1 Instrument selftest 8 1 Cleaning the exterior 8 1 Storage 8 1 ...

Page 342: ...s described in Chapter 4 in the section Selftest Instrument selftest The R S NRP carries out a selftest during booting This selftest is described in Chapter 1 in the section titled Welcome screen and function test Cleaning the exterior To clean the exterior use a soft lintfree cloth and an alcohol free solvent e g a commercially available dishwashing liquid Storage The R S NRP has a storage temper...

Page 343: ...s Chapter 9 1144 1400 12 I 9 1 E 2 Contents 9 SCPI Error Messages 9 1 SCPI Specific Error Messages 9 1 No error 9 1 Command Error 9 1 Execution Error 9 3 Device Specific Errors 9 4 Query Errors 9 5 Device Dependent Errors 9 5 ...

Page 344: ...ed upon queue query Explanations 0 No error This message is displayed if the error queue is empty Command Error Command errors causes bit 5 in the ESR to be set Error code Error text returned upon queue query Explanations 100 Command error Command faulty or invalid 101 Invalid character The command contains a character which is invalid for that type 102 Syntax error The command is invalid 103 Inva...

Page 345: ...e sensor with the SENSe commands 1 4 the CALCulate block with the high level measurement commands 1 4 and the window with the DISPlay commands 1 4 134 Suffix too long The suffix contains more than 12 characters 138 Suffix not allowed A suffix is not allowed for this command or at this position in the command 141 Invalid character data Either the character data element contains an invalid character...

Page 346: ...already in progress 214 Trigger deadlock A measurement could not be started or a result query could not be processed since the device would otherwise enter a deadlock state This occurs under the following conditions 1 TRIG SOUR BUS INIT FETCh A TRG or TRIG IMM would be required for triggering but these commands cannot be executed since FETCh blocks the entry But FETCh waits until the measured valu...

Page 347: ...pendent error that cannot be defined more precisely 310 System error Indicates that some system error has occurred Please contact the R S service center 311 Memory error An error was detected in the device s memory 314 Save recall memory lost Indicates that the nonvolatile data saved by the SAV command has been lost 315 Configuration memory lost Indicates that nonvolatile configuration data saved ...

Page 348: ...ndent error causes bit 5 to be set in the ESR register Error code Error text returned upon queue query Explanations 1 Device dependent error This error message is sent when the device cannot detect a more specific error 2 IEEE 1174 error unknown emulation code An invalid IEEE 1174 emulation mode was selected for the Ethernet link 22 IEEE1174 mode 488 1 not allowed Setting the IEEE 1174 1 mode is n...

Page 349: ... inform the R S NRP at any point which commands they support or do not support This mainly concerns commands of the Sense and Trigger systems 46 Sensor failure no command receipt A sensor did not acknowledge any command 47 Error in receiving battery data An error occurred in receiving battery data command SYSTem BATTery STATus 48 Error in sending battery data An error occurred in sending battery d...

Page 350: ...set the filter length such that the required accuracy is obtained If the measurement time required for this exceeds the value set with SENSe AVERage COUNt AUTO MTIMe max time the filter length is shortened such that a measurement does not last more than the max time and error message 56 Filter truncated is generated 57 Standard settings incomplete The R S NRP can be configured for measuring standa...

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