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Programming Measurements

R&S

®

NRP2

379

User Manual 1173.9157.02 ─ 03

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 reflec-
ted 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

chapter C.1.5, "Selecting the

output unit for measured values"

C.1.4 Selecting a measurement mode

Other

MEAS

commands are available for measurements to be performed in a mode other

than the "ContAv" mode. The short form of these commands is obtained by adding a
keyword for the measurement mode to keyword

MEAS

.

Timeslot measurement:

MEAS:TSLot?
<tslot_width>,<no_slots>,<start_exclude>,<stop_exclude>

BurstAv measurement:

MEAS:BURSt? <dtolerance>,<start_exclude>,<stop_exclude>

Measuring with high-level commands

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Содержание NRP2

Страница 1: ...R S NRP2 Power Meter User Manual User Manual 2 1173 9157 02 03 Test Measurement...

Страница 2: ...ould like to thank the open source community for their valuable contribution to embedded computing 2012 Rohde Schwarz GmbH Co KG Muehldorfstr 15 81671 Munich Germany Phone 49 89 41 29 0 Fax 49 89 41 2...

Страница 3: ...the product The product is used for its designated purpose if it is used in accordance with its product documentation and within its performance limits see data sheet documentation the following safe...

Страница 4: ...e positions specified by the manufacturer without the product s ventilation being obstructed If the manufacturer s specifications are not observed this can result in electric shock fire and or serious...

Страница 5: ...t it is in proper operating condition By taking appropriate safety measures and carefully laying the power cable you can ensure that the cable will not be damaged and that no one can be hurt by for ex...

Страница 6: ...damage may occur It is the responsibility of the employer operator to select suitable personnel for operating the products 2 Before you move or transport the product read and observe the section title...

Страница 7: ...sunlight must be avoided Keep cells and batteries clean and dry Clean soiled connectors using a dry clean cloth 3 Cells or batteries must not be short circuited Cells or batteries must not be stored i...

Страница 8: ...l regulations must be observed Also observe the relevant safety instructions in the product documentation The improper disposal of hazardous substances or fuels can cause health problems and lead to e...

Страница 9: ...imprescindible leer detalladamente y comprender por completo las siguientes informaciones de seguridad antes de usar el producto y respetarlas durante el uso del producto Deber n tenerse en cuenta to...

Страница 10: ...el fabricante respecto a los estados operativos y posiciones de funcionamiento sin que se obstruya la ventilaci n Si no se siguen las indicaciones del fabricante pueden producirse choques el ctricos...

Страница 11: ...red el ctrica Si los productos sin interruptor est n integrados en bastidores o instalaciones se deber colocar el interruptor en el nivel de la instalaci n 5 No utilice nunca el producto si est da ado...

Страница 12: ...ya se hayan producido condensaciones sobre el producto o en el interior de ste como p ej al desplazarlo de un lugar fr o a otro caliente La entrada de agua aumenta el riesgo de choque el ctrico 18 Ant...

Страница 13: ...warz Si se reponen partes con importancia para los aspectos de seguridad p ej el enchufe los transformadores o los fusibles solamente podr n ser sustituidos por partes originales Despu s de cada cambi...

Страница 14: ...s personales o da os en el producto siga las instrucciones de seguridad del fabricante del medio de transporte o elevaci n utilizado 3 Si se utiliza el producto dentro de un veh culo recae de manera e...

Страница 15: ...s on batteries and rechargeable batteries in the basic safety instructions Informaci n para el cliente relativa a la Ley de Bater as BattG Este equipo contiene una bater a o acumulador que no se deben...

Страница 16: ...nce with EN 50419 Once the lifetime of a product has ended this product must not be disposed of in the standard domestic refuse Even disposal via the municipal collection points for waste electrical a...

Страница 17: ...management system stan dards The Rohde Schwarz quality management system is certified according to standards such as ISO9001 and ISO14001 Environmental commitment Energy efficient products J J Continu...

Страница 18: ...n the approximation of the laws of the Member States relating to electrical equipment for use within defined voltage limits 2006 95 EC relating to electromagnetic compatibility 2004 108 EC Conformity...

Страница 19: ...ument up to date and to be informed about new application notes related to your instrument please send an e mail to the Customer Support Center stating your instrument and your wish We will take care...

Страница 20: ......

Страница 21: ...on to the operation 24 2 3 Preset and zeroing 27 2 4 Measuring average power Cont Av mode 29 2 5 Window handling 35 2 6 Setting measurement functions 40 2 7 Graphically representing power versus time...

Страница 22: ...171 5 7 Structure and Syntax of device dependent Messages 173 5 8 Device Model and Command Processing 180 5 9 Automatic Settings for Manual Selection of a Measurement Mode 182 5 10 Correspondence betw...

Страница 23: ...GPIB Bus Interface 349 A 2 Ethernet 352 A 3 Ethernet interface 355 A 4 USB interface 363 B Standard Configurations 365 C Programming Measurements 377 C 1 Measuring with high level commands 377 C 2 Tri...

Страница 24: ...Contents R S NRP2 6 User Manual 1173 9157 02 03...

Страница 25: ...es on putting into operation Risk of instrument damage Note that the general safety instructions also contain information on operating conditions that will prevent damage to the instrument The instrum...

Страница 26: ...cking to support any claims for compensation Retain the original packing material If the instrument needs to be transported or shipped at a later date you can use the material to prevent control eleme...

Страница 27: ...adapters order numbers see data sheet The installation instructions are part of an adapter kit Risk of instrument damage For rack installation make sure that the airflow perforations are unimpeded Thi...

Страница 28: ...nd standby LEDs 7 Sensor connectors 1 5 1 Display The R S NRP2 displays results in windows Depending on the measurement mode values are displayed digitally in a combined digital and analog mode or gra...

Страница 29: ...on top of the screen indicates information concerning the measure ment and instrument state the display area shows the measurement curve including markers result and time axes information and further...

Страница 30: ...d forwards by pressing on the right or left side of the key The softkey function is con text sensitive and is indicated by screen labeling For more information on the softkeys see also chapter 2 2 Bri...

Страница 31: ...OCAL key it is used to switch the R S NRP2 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...

Страница 32: ...power supplied and in standby mode Green LED ON The green LED indicates when the meter on i e ready for operation The possible operating states are The meter is off and disconnected from the AC supply...

Страница 33: ...To disconnect pull the connector at its sleeve which is marked with a red dot 1 6 Rear Panel This section gives an overview of the control elements and the connectors on the rear panel of the R S NRP2...

Страница 34: ...utput The inputs outputs are configured in the System menu see chapter 4 7 2 Setting the analog outputs and the trigger input on page 149 ETHERNET The Ethernet connector is an RJ45 socket for remote c...

Страница 35: ...ch can be set to two positions 0 The instrument is disconnected from the mains I The instrument is power supplied It is either ready for operation STANDBY or in operating mode depending on the color o...

Страница 36: ...ready for operation yellow standby AC supply is connected and power supply is operating correctly off off and disconnected from the AC supply 1 8 2 Startup Press the ON STANDBY key to switch to ready...

Страница 37: ...itch on the R S NRP2 performs a function test The contents of all non volatile memories the RAM and the addressability of the interfaces are checked Messages indicate the options the instrument is equ...

Страница 38: ...played instead of OK It is however possible to establish a network connection later on at any time Results display of the function test The R S NRP2 shows the progress of the tests in a colored orange...

Страница 39: ...eset state All instrument settings that have been saved are lost as a result of this procedure 1 8 3 Shutting down the meter Whenever the meter is switched off its settings are saved The next time it...

Страница 40: ...Putting into Operation R S NRP2 22 User Manual 1173 9157 02 03 Starting the R S NRP2...

Страница 41: ...form a measurement of burst power without external triggering Some of the sections later on in this chapter assume familiarity with the basic operating techniques which are introduced in the first sec...

Страница 42: ...lly or graphically either by an ana log meter or depending on the measurement mode in a trace diagram This section briefly describes the concept of manual operation of the power meter in order to perf...

Страница 43: ...ase the softkey operated as a rocker switch see the following examples Two functions are associated with one softkey In the example the two functions are position Pos and scale Scale Scale is selected...

Страница 44: ...s inverted A digit or a letter panel appears on the right side of the display 2 Select the position to be changed using the cursor keys 3 To change the entry at the marked position either a select the...

Страница 45: ...enu appears Fig 2 1 File menu 2 Press the PRE SET hardkey again or press the Preset softkey All parameters and switching states are preset also those of inactive operating modes When the preset is com...

Страница 46: ...ing dialog box 4 Press the ZERO hardkey again to perform zeroing of all connected sensor channels Zero All or press the appropriate softkey to select a specific sensor for zeroing Zeroing of all conne...

Страница 47: ...liary values Setting up the measurement To set up the measurement 1 Put the R S NRP2 into operation as described in chapter 1 Putting into Opera tion on page 7 and connect a sensor to connector A 2 Pr...

Страница 48: ...e overwrite mode default mode is active Use the LEFT RIGHT cursor keys to move the block cursor and overwrite the digits with new values Use the UP DOWN cursor keys to increase decrease the digit valu...

Страница 49: ...iated softkey The result is displayed in W Fig 2 6 Result window W Setting a fixed offset correction The R S NRP2 provides an offset correction to the displayed measurement result To set a fixed offse...

Страница 50: ...losses and negative values for gains 4 If you have an attenuator at hand enter its value and connect the attenuator between the sensor and the signal source otherwise just enter 10 dB 5 Confirm the en...

Страница 51: ...and a reference value The reference value can be a measured value that has been saved or an arbitrary value that is entered 1 Select the Measurement menu 2 Open the Measurement menu with MENU Fig 2 11...

Страница 52: ...ed value should now equal the offset that has been entered Checking the settings with full height window 1 Select and open the Windows menu The Windows menu contains all the functions required for ope...

Страница 53: ...NRP2 s display Each window can be configured for a separate measurement The following examples show how to handle windows Opening expanding and closing windows 1 Press the PRE SET hardkey twice Fig 2...

Страница 54: ...right side of the softkey to expand the window The window expands to occupy the full display height and indicates all parameters relevant to the measurement Fig 2 18 Result window Dig 5 Open the menu...

Страница 55: ...window 1 is still selected The labeling next to the third softkey is now Open Init 5 Press the Open softkey The appearance of the window has not changed and all window specific settings have been mai...

Страница 56: ...to select the display mode The standard display mode is Dig ital measurement result Fig 2 21 Windows menu digital display mode 2 Select the D A display mode Window 1 now shows an analog scale and a di...

Страница 57: ...y mode Auxiliary values Maximum Minimum Max Min 1 Select the Measurement menu 2 Select Function in this menu The measurement function unit of the measurement result sensors used and the auxiliary valu...

Страница 58: ...the minimum value tracks the measurement result The max min values rises corre spondingly However if the signal power is increased the maximum value tracks the measurement result as soon as the store...

Страница 59: ...box Fig 2 28 Function Unit dialog box ratio In this dialog box you can select the function used to calculate the result in the selected window For example Ratio A B yields the quotient from the measur...

Страница 60: ...represented graphically as with an oscilloscope If you wish to carry out measurements on signals with modulated power envelope in the Burst or Timeslot mode initially displaying the signal in the Trac...

Страница 61: ...tch to the Trace Statistics mode Fig 2 32 Trace Statistics measurement mode 6 Close the Mode dialog box 7 Close the Sensor menu The window is now in the Trace Statistics display mode and shows the Tra...

Страница 62: ...ic analysis of the power envelope can be performed Settings for reliable triggering 1 Press the Trigger softkey in the trace display The Trigger dialog box opens Fig 2 34 Trigger dialog box page 1 A d...

Страница 63: ...gnal see chapter 3 6 2 Special symbols on page 58 8 Enter a Dropout value The dropout time prevents the trigger system from being activated by signal excur sions prior to the trigger event targeted 9...

Страница 64: ...signal with a level between 10 dBm and 10 dBm 2 Press the PRE SET hardkey twice A measurement window is now available 3 Change to the Sensor menu and select Mode The Mode dialog box opens 4 Select Tr...

Страница 65: ...burst av power measurement see chapter 4 2 1 3 Meas uring the average power of burst signals on page 68 The power of burst can be measured also by means of timegates see chapter 4 2 1 5 Measuring the...

Страница 66: ...Getting Started R S NRP2 48 User Manual 1173 9157 02 03 Measuring average burst power Burst Av mode...

Страница 67: ...l keys hard soft and cursor page 12 for information on the keys located at the front panel Brief introduction to the operation key handling page 24 providing a brief introduc tion on how to operate In...

Страница 68: ...always displayed at the top of the screen It contains the menu names The active menu is highlighted Selecting the active menu Fig 3 3 Screen layout selecting the active menu Select the active menu Pr...

Страница 69: ...n layout dialog boxes Dialog boxes can be opened from the menus The dialog boxes display a group of related parameters that can be set See chapter 3 5 Dialog boxes and their controls on page 53 for mo...

Страница 70: ...ows menu Measurement menu The details of postprocessing are summarized in the Measurement menu See chapter 4 4 Configuring measurements on page 96 for a detailed description of the Measurement menu Fi...

Страница 71: ...ter setting options are provided in the menu The currently selected option is highlighted in orange Select the option by pressing the left or right side of the associated rocker switch Use of softkeys...

Страница 72: ...o not have a sensor connected and channels that have not been instal led are shown in gray and cannot be selected 3 5 3 Check boxes Check boxes are used to activate and deactivate functions You can to...

Страница 73: ...its and or letters Any changes you make to a field can be confirmed with the MENU hardkey When this hardkey is pressed the new value is subjected to a validity check If the check discovers an error a...

Страница 74: ...ed 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 items from folded out pop up menus Confirm the selection with the M...

Страница 75: ...three sizes half height quarter height and full height In windows measurement results are displayed digitally in a combined digital and analog mode and graphically See chapter 4 3 Displaying measurem...

Страница 76: ...to their previous sizes with the Arrange menu item Otherwise it is not possible to change the size of the windows the window size is determined by the number of win dows 3 6 2 Special symbols Table 3...

Страница 77: ...source external Trigger on rising slope Noise component with auto filter in Fixed Noise mode Trigger on falling slope Noise ratio exceeded Measurement in progress Measurement stopped Physical trigger...

Страница 78: ...al Operation R S NRP2 60 User Manual 1173 9157 02 03 Table 3 3 Symbols for time slot measurement Time slot start of measurement Time slot end of measurement Time slot length of measurement Display win...

Страница 79: ...e 143 chapter 4 8 Messages and alarms on page 163 4 1 Main Settings The main settings for the R S NRP2 are accessed via hardkeys 4 1 1 Preset hardkey PRE SET changes the instrument to its default stat...

Страница 80: ...1 Default state for manual operation 4 1 2 Frequency hardkey FREQ is used to set the carrier frequency of the applied signal This corrects any fre quency dependent effects introduced by the sensor If...

Страница 81: ...oing 4 1 3 1 Zero dialog box Fig 4 2 Zero dialog box The colored background of the text indicates that the function can also be started by pressing the ZERO hardkey again Zero All Zeroes all connected...

Страница 82: ...Sensor menu contains the following items Setting the measurement mode on page 64 Offset correction on page 76 and Filter averaging on page 79 Measurement ranges on page 82 Effect of the RF source on p...

Страница 83: ...Trace Statistics mode the R S NRP2 analyzes the power envelope of the test signal and displays the power envelope either as a function of time or in its probability distribution and probability densit...

Страница 84: ...e too slow for the other measurement modes Select Cont Av in the Mode dialog box opened via the Sensor menu Fig 4 5 Mode dialog box Cont Av Aperture Defines the aperture time size of the acquisition i...

Страница 85: ...nts near the sampling frequency can cause beating effects With changing the sampling rate the beating effects usually disappear SCPI command SENSe 1 4 SAMPling on page 277 Duty Cycle Using the duty cy...

Страница 86: ...rom the measurement This means that signal overshoots can be omitted from measurements for example Find some background information in sections Dropout tolerance on page 74 and Timing diagram of burst...

Страница 87: ...h timeslot by using the Excluded from Start End parameters The R S NRP Z8x wideband power sensors can additionally define an exclusion interval in between i e a Fence A midamble of the signal can thus...

Страница 88: ...POWer TSLot AVG WIDTh on page 276 Excluded from Start End Defines the intervals at the start end of the timeslot which are excluded from the mea surement The timesslot length is set with Nominal Width...

Страница 89: ...T gate Av mode is set and configured in this dialog box The active gate must be selected in the dialog box Func Unit see chapter 4 4 3 Selecting a measurement function on page 98 The R S NRP Z8x wideb...

Страница 90: ...CPI command SENSe 1 4 POWer TGATe 1 4 EXCLude MID OFFSet TIME on page 272 SENSe 1 4 POWer TGATe 1 4 EXCLude MID TIME on page 273 4 2 1 6 Trace statistics measurements The Trace Statistics mode is used...

Страница 91: ...fectively suppress 1 f noise This means that for a given integration time averaging number x 2 x aperture time the noise content of the measurement result is minimal with the default setting Depending...

Страница 92: ...ficient operation Set aperture time accordingly particularly if you are using R S NRP Z81 85 86 wideband power sensors which feature very low default aperture times The noise content of the measuremen...

Страница 93: ...of T Slot Av signals The timing diagrams that differ by externally and internally triggered events show the relation between the listed parameters Trigger event trigger delay and start of the first ti...

Страница 94: ...obal is used to set and activate a fixed offset Frequency dependent corrections can be made with Table Both types of correction can be made simultaneously S Parameter Device is for correcting the effe...

Страница 95: ...OFFSet on page 266 Global state Activates deactivates the global offset correction SCPI command SENSe 1 4 CORRection OFFSet STATe on page 266 Table name Opens an item list containing correction tables...

Страница 96: ...cursor keys you can select the number field you want to Edit Insert or Delete Note A long list can not be displayed in full length in the dialog box The entries are therefore viewed in a window which...

Страница 97: ...hat it takes longer to display a new result but rather that it takes longer for the result to settle when the power changes The filter settings of the Trace Statistics mode and the other modes which e...

Страница 98: ...i e an increasing number of digits in the measurement results the averaging number also increases Fixed Noise In the Fixed Noise mode the averaging number is selected so that the sensors intrinsic noi...

Страница 99: ...ENSe 1 4 AVERage RESet on page 264 Auto Once Determines a one off optimal averaging number based on the instantaneously mea sured power value and enter this value in the Avg No field This function is...

Страница 100: ...in parallel simultaneously With automatic range selection measurement paths which are neither overdriven nor underdriven are selected for evaluation No range switching occurs at all Adjacent paths ov...

Страница 101: ...uced according to the offset value e g by a factor of four when entering 6 dB Manual path selection can be chosen by deactivating the Auto checkbox and selecting the preferred path in the Path selecti...

Страница 102: ...increase measure ment accuracy by correcting the effect of source mismatch on the measured value 4 2 5 1 Sensor correction dialog box Open the correction dialog box in the Sensor menu If correction i...

Страница 103: ...onfigure the trigger system in the Trigger dialog box which is opened via the Sensor menu or via the control panel of the respective trace mode Trigger dialog box page1 The first page covers the param...

Страница 104: ...ing the DEL 1TRIG hardkey see chapter 4 2 7 Trigger sequence control on page 89 Internal The trigger event for the selected sensor is derived from the measured signal External The trigger event for th...

Страница 105: ...er dialog box page 2 A B C D Trigger dialog box 2 Tabs for selecting the sensor Note In remote control commands select the sensor with the suffix in command SENSe 1 4 i e choose suffix 1 for channel A...

Страница 106: ...ysteresis and holdoff parameters Fig 4 22 Trigger dialog box page 3 A B C D Trigger dialog box 3 Tabs for selecting the sensor Note In remote control commands select the sensor with the suffix in comm...

Страница 107: ...e In normal continuous trigger mode measurements run continuously with regular trigger events The trigger events may be caused by internal or external trigger signals see Source on page 86 in the Sens...

Страница 108: ...tive 4 2 7 3 Controlling trigger sequence in auto mode The measurements run continuously is indicated in the title bar To stop the measurement Press the DEL 1TRIG hardkey is indicated in the title bar...

Страница 109: ...aningful names to the windows makes it much easier to recognize the associated measurement A name like Amplifier output is more informative than Channel A or Window 2 The names of the windows are also...

Страница 110: ...y in the Windows menu is context sensitive and changes according to the status of the active window Fig 4 25 Windows menu softkeys for controlling the windows Open Opens the selected window with its p...

Страница 111: ...s are displayed simul tanously again SCPI command DISPlay WINDow SIZE on page 244 4 3 3 3 Selecting the result display mode Three result display modes are available in the windows menu The result disp...

Страница 112: ...in its distribution and distribution density function CCDF CDF PDF Additional information on the active set tings is below the graph in the info panel See chapter 4 5 Displaying traces on page 112 In...

Страница 113: ...set in 4 stages designated as 1 dB 0 1 dB 0 01 dB and 0 001 dB If dB dBm or dB V is selected as the unit the number of places after the decimal point is set directly In the linear mode W 1 the number...

Страница 114: ...ne timeslot out of a complete structure to show its mean power in the active window If you want to display further timeslots simultaneously a separate window must be opened and configured for each add...

Страница 115: ...on on page 98 Selecting a unit on page 105 Auxiliaries on page 108 Relative measurement on page 109 Limit monitoring on page 110 Resetting auxiliary information on page 111 4 4 2 Selecting a window Th...

Страница 116: ...mary channel and possibly a secondary channel must be selected for each measurement window The simplest case is a measurement with just one sensor To configure this measure ment first select this sens...

Страница 117: ...hannel is operating in the Trace Statistics mode and the results window is set to Graph the envelope power of this channel is automatically shown as a function of time or in its distribution and distr...

Страница 118: ...R RCoeff and RLoss are selected 4 4 3 2 Measuring power in gates For time gated power measurements the R S NRP2 power meter offers two modes T gate Av Trace Statistics T gate Av In this mode the avera...

Страница 119: ...s in the Mode dialog box of the Sensor menu 2 Select Gate mode in the Display control panel of the Trace display 3 Set the timing parameters in the Config Gate control panel of the Trace display The g...

Страница 120: ...dimension e g two power levels or two Pk Av ratios The impedance measurement functions even require identical measurands e g two average power values but not one average power value and one peak power...

Страница 121: ...d corresponds to the sampling rate of the sensor To configure the measurement 1 Select T Slot Av in the Mode dialog box of the Sensor menu 2 Set the timing parameter for the timeslots 3 Select the tim...

Страница 122: ...menu 2 Open the Function Unit dialog box of the of the Measurement menu 3 Select the timeslot the main value Eval and Aux Normal The main value together with the auxilliary values is indicated numeric...

Страница 123: ...e on page 239 Reading out values CALCulate 1 8 DATA on page 223 4 4 3 4 Setting the unit Combining channels which are operated in different measurement modes It is possible to define measurement funct...

Страница 124: ...alculates the measurement results for the different units either in absolute notation or relative to a reference value see chap ter 4 4 4 Relative measurement on page 109 for legend see table 4 7 Tabl...

Страница 125: ...Sum Diff R B A P P P mW 1 lg 10 B A P P 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 Table 4 7 Legend for formula tables Variable Meaning P PA PB PR PX PY...

Страница 126: ...e In the example the auxiliary function is set to Extremes i e the maximum the minimum and the max min value are indicated See also chapter 3 6 2 Special symbols on page 58 for information concerning...

Страница 127: ...sults which have been evaluated since the search for statistic values has been started SCPI command CALCulate 1 8 DATA on page 223 CALCulate 1 8 MAXimum DATA on page 230 CALCulate 1 8 MINimum DATA on...

Страница 128: ...4 2 Setting the reference value manually The reference value can be directly entered or edited using the Reference Value dialog box Open the dialog box with the RefVal softkey Fig 4 42 Reference valu...

Страница 129: ...ower Sets the lower limit value and turns monitoring on off SCPI command CALCulate 1 8 LIMit LOWer DATA on page 226 CALCulate 1 8 LIMit LOWer STATe on page 227 Warning Beep Activates an acoustic alarm...

Страница 130: ...ver time or the ratio of the envelope powers of two channels over time 4 5 1 Basic settings for trace display The trace display can be quickly selected after a preset 1 Connect a sensor to the R S NRP...

Страница 131: ...measurement results If the trace display is not visible check the trigger settings see chapter 4 2 6 Trigger settings on page 85 4 5 2 Trace window A trace measurement is displayed graphically either...

Страница 132: ...responding control panel Further display modes are set via the Display softkey Display Opens the control panel for selecting the measurement mode for trace display See the following sections for more...

Страница 133: ...16 Pos Scale Defines if the cursor keys position or scale the waveform Pos The cursor keys shift the waveform in horizontal and vertical direction Scale The cursor keys expand and compress the wavefor...

Страница 134: ...ical axis in terms of dimensionless numbers 4 5 3 2 Trace diagram settings Config Grid opens the subdialog to determine the position and the size of the screen window In addition the dialog box allows...

Страница 135: ...ay To prevent results from being falsified due to instable trigger conditions you should always check whether the trace is stable in its time axis This should be done without averaging Trace Avg No 1...

Страница 136: ...results Trace Avg No Selects the averaging number for averaging the traces SCPI command SENSe 1 4 TRACe AVERage COUNt on page 282 Video BW Selects the video filter bandwidth This setting is available...

Страница 137: ...ny samples the R S NRP Z8x wideband power sensors allow you to select what is to be displayed Average Average power value resulting in a flicker free display and smooth trace Note Average is fixed for...

Страница 138: ...ters are indicated in the info panel see graph below Table 4 8 Gates display mode with two traces Gate measurement is performed for trace B Select Trace Bav Gate measurement is performed for both trac...

Страница 139: ...see chapter 4 5 2 Trace window on page 113 Config Gates Open the subdialog to configure the four available gates see chapter 4 5 4 3 Gate diagram settings on page 122 Pos Scale Defines if the cursor k...

Страница 140: ...onfig in the dialog box opened via the Window Graph Dis play Gates control panel Trace Statistics sensor mode Configure the four available gates in the Gates Config dialog box Fig 4 51 Gates Config di...

Страница 141: ...display mode In the Marker mode you can display two markers in addition to the trace s The power power ratio at the marker positions is displayed together with the marker time The mark ers can be posi...

Страница 142: ...ied the neutral zone depends on the unit selected the points in the center of the screen remain unchanged when dBm dB and dB V are used The points at the bottom of the screen remain unchanged in all o...

Страница 143: ...ilt ering Function and Unit are taken from the Trace display mode and cannot be changed Select Pulse in the control panel opened via the Window Graph Display dialog box Trace Statistics sensor mode Fi...

Страница 144: ...ertical direction Scale The cursor keys expand and compress the waveform When the hori zontal scaling is modified the points pixels at the left of the screen remain unchanged When the vertical scaling...

Страница 145: ...in the borders of the selected gate or must be part of the visible portion of the trace if pulse analysis extends over the whole trace If the analysis window contains several cycles evaluation always...

Страница 146: ...s Neg Overshoot Indicates the relative amount of positive negative overshoot The indi cates value depends on the Related to Power Voltage setting in the pulse measurement Config menu Pulse Measurement...

Страница 147: ...efer ence levels are derived Histogram Computes the pulse top base power by analyzing the histogram of the trace data The pulse top level is taken on the mean value of all points representing the puls...

Страница 148: ...time slot structure is common for all diplayed waveforms Individual time slot structures for specific channels sensors can only be configured in numeric T slotAV mode Tips for power measurement in ti...

Страница 149: ...age 113 Config T slots Opens the subdialog Timeslot Config to configure the timeslot structure see chap ter 4 5 7 3 T Slot diagram settings on page 132 See also chapter 4 2 1 4 Measuring the average p...

Страница 150: ...chapter 4 5 3 4 Trace function settings on page 118 4 5 7 3 T Slot diagram settings Configure timeslot measurement in the Timeslot Config dialog box which is opened via the Window Graph Display T slot...

Страница 151: ...mode is not restricted to the wideband power sensors of the R S NRP Z8x series Instead all power sensors are supported that can be operated in Trace mode Start Length of Fence Sets the start time and...

Страница 152: ...peak power the average power the measurement result at the position of the power x marker the power value related to the result y marker In case of AWGN only the measurement result at the position of...

Страница 153: ...ty function the associated power value is indicated If there are several power values that coincide with the set value of the distribution distribution density function the result marker can be posi t...

Страница 154: ...tes the logarithmic values independent of the settings for the graph Configuring the statistics display Select Stat s Config in the control panel opened via the Window Graph Dis play Stat s control pa...

Страница 155: ...e CCDF CDF is while the PDF function is dimensionless Stat s Config Marker Fig 4 65 Stat s Config Marker tab The Marker tab covers two markers one for each axis It enables you to numerically position...

Страница 156: ...nd in contrast to a non nor malized PDF is independent of the magnitude of the average power value Av Integrating the normalized PDF over power provides the average power value Av SCPI command SENSe 1...

Страница 157: ...attained SCPI command SENSe 1 4 STATistics SAMPles MINimum on page 279 4 6 Management of settings The general settings are performed in the File menu Default settings on page 139 Loading user defined...

Страница 158: ...the current settings under the selected name After the settings are stored suc cessfully the dialog box closes automatically Former settings saved in this memory space are overwritten Another way to s...

Страница 159: ...herefore be changed and deleted as desired but above all it is not automatically deleted when one of the preset parameters is changed and the instrument setting no longer corresponds to the loaded sta...

Страница 160: ...isplay the contents of the SCPI error queue in the Error List dialog box of the File menu In addition to the error the command line that triggered the error is displayed along with a question mark hig...

Страница 161: ...INDow 1 4 NAME on page 243 4 7 System settings System settings are configured in the System menu The menu provides access to the following settings Configuring the remote control interfaces on page 14...

Страница 162: ...s on page 147 for setting the IP address For description of the interface refer to chapter A 2 1 VXI11 protocol on page 353 Local Area Network LAN Ethernet socket com munication e g Raw Ethernet simpl...

Страница 163: ...1 4 VXI11 settings on page 147 for information in detail Ethernet Activates remote control via Ethernet using socket communication see chapter 4 7 1 5 Raw Ethernet socket communication settings on pa...

Страница 164: ...ate GPIB SELF ADDRess on page 316 Command Set Selects the instrument type for emulation see Command Set on page 145 4 7 1 3 USB settings Remote control of the R S NRP2 via the USB is performed accordi...

Страница 165: ...r automatically Set the address in the IP Config dialog box IP Config Assigns the IP address either manually or automatically Manual IP Config Sets address mask and gateway Fig 4 77 IP Config dialog b...

Страница 166: ...kets The socket communication also referred as Raw Ether net communication does not require a VISA installation on the remote controller side The simplest way to establish socket communication is to u...

Страница 167: ...HCP on page 147 PortNo Inserts the port number configured for remote control Command Set Selects the instrument type for emulation see Command Set on page 145 4 7 2 Setting the analog outputs and the...

Страница 168: ...utput at the OUT1 TRIG OUT connector and their settings Fig 4 81 I O dialog box Out1 tab Mode Selects the function of the OUT1 TRIG OUT connector Analog Pass Fail Trig Out and Off are available Note F...

Страница 169: ...Equivalent Analog Analog Mode Entry of the measurement value that corresponds to the output voltage of 0 V SCPI command OUTPut RECorder 1 2 LIMit LOWer on page 254 OUTPut RECorder 1 2 LIMit LOWer POW...

Страница 170: ...lts within the set limits The value range is 0 V to 3 3 V SCPI command The setting is achieved by a combination of the following commands The example is for OUTPut TTL FAIL set to HIGH OUTPut TTL FAIL...

Страница 171: ...Use the signal for example to synchronize externally connected instruments SCPI command OUTPut TRIGger STATe on page 259 Off Mode Deactivates port OUT1 TRIG OUT Fig 4 85 Out1 mode Off SCPI command Bo...

Страница 172: ...ides an analog voltage which is proportional to the value displayed in the selected window e g Window 1 Fig 4 87 I O 2 mode Analog Out SCPI command The state must be set to ON OUTPut RECorder 1 2 STAT...

Страница 173: ...ngly it passes the signal directly through to the sensors Refer to chapter 4 2 6 Trigger settings on page 85 for infor mation on the respective settings SCPI command The state must be set to OFF OUTPu...

Страница 174: ...by writing to the display memory chapter 4 7 5 Miscellaneous on page 158 4 7 3 Sensor Check Source The Sensor Check Source option R S NRP B1 supplies an accurate 1 mW test signal at 50 MHz It can arb...

Страница 175: ...annel 2 for B and so on Sensor info The sensor info dialog shows the information on the selected sensor SCPI command SYSTem SENSor 1 4 INFO on page 322 4 7 4 2 Information on the R S NRP2 Select Syste...

Страница 176: ...ize Flash Flash memory size holding the operating system the firmware and the stored data non volatile CPU Clock Frequency of the CPU clock CPLD Version of the CPLD Complex Programmable Logic Device P...

Страница 177: ...ring on page 110 Display Update Selects the display refresh rate At very low ambient temperatures the display becomes sluggish To improve readability under these circumstances you can reduce the displ...

Страница 178: ...4 i e choose suffix 1 for channel A channel 2 for B and so on Selftest internal with no signal Starts a selftest of the sensor A signal must not be applied The instrument indicates the corresponding s...

Страница 179: ...ade with or without an attenuator Since the power sensors of the R S NRP Z series are absolutely calibrated a regular calibra tion measurement after switching on the instrument is not necessary and al...

Страница 180: ...ement The test report shows the type and the serial number of the tested sensor and the detailled test results When the dialog box opens it shows the data of the sensor last tested The measured values...

Страница 181: ...range If the base unit and the sensors are not used at temperature extremes the tolerance limits can be restricted so that any damage to the sensor can be detected even more quickly Test Limits Config...

Страница 182: ...ata sheet for the sensor and can be displayed in the Sensor Info dialog box see chapter 4 7 4 System information on page 156 An alarm sounds when the message is displayed The alarm can be disabled in...

Страница 183: ...he signal The measured value can thus be incorrect Trunc Meas Fig 4 103 Error message Trunc Meas Trunc Meas is displayed in Burst Av mode when there is an overflow of the sensor internal buffer for sa...

Страница 184: ...lization Fig 4 105 Information New Window If an additional sensor is connected to the R S NRP2 during operation and if no currently open window displays the values measured in the channel concerned th...

Страница 185: ...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 mod...

Страница 186: ...l 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 In the man...

Страница 187: ...iguration 1 Select Ethernet as the active interface 2 Choose Manual or DHCP IP address configuration If DHCP is chosen IP address subnet mask and gateway address are retrieved from a DHCP server The D...

Страница 188: ...ective of the selected interface as soon as it receives a SCPI command All settings are maintained when the device switches to remote mode except for the setting listed in table 5 1 5 4 Return to Manu...

Страница 189: ...IMM TRIG DEL AUTO OFF TRIG COUNt 1 TRIG ATR OFF Burst timegate timeslot and trace TRIG DEL AUTO OFF TRIG COUNt 1 TRIG ATR OFF 5 6 Communication on Data Lines The GPIB bus is the most common remote int...

Страница 190: ...ation of the trigger system Queries cause device data to be provided in the output queue where they can be fetched via the IEC IEEE bus Queries are available for most of the setting commands They are...

Страница 191: ...he SENSe command system which selects the measurement to be per formed by the device Most of the other examples of command syntax and structure are taken from this command system SCPI is based on the...

Страница 192: ...1 4 TRACe POINts int_value This command is at the third level of he SENSe system and sets the number of test points for the Trace mode Fig 5 1 SCPI command tree Some keywords are used at several level...

Страница 193: ...e fourth character is a vowel and the long form consists of more than four characters only the first three characters are used for the short form The short form is shown by upper case characters and t...

Страница 194: ...dinate SENSe node In this case it would be possible to omit the introductory keyword SYSTem see the following explan ation If the successive commands belong to the same system and therefore have one o...

Страница 195: ...other quantities queried by a special text parameter are returned as numeric values Example SENSe POWer TSLot COUNt MAXimum Response 26 Numeric values are output without a unit Physical quantities re...

Страница 196: ...e basic unit will be used Example SENSe1 FREQuency 1 5 GHZ is equivalent to SENSe1 FREQuency 1 5E9 Some settings allow relative values to be stated in One and percent According to SCPI these units are...

Страница 197: ...or the numeric value 0 Queries yield 0 or 1 Example Command SENSe POWer BUFFered ON Query SENSe POWer BUFFered Response 1 Character data Character data follows the syntax rules for keywords i e it als...

Страница 198: ...red from the point of view of the pro cessing of remote control commands The individual components operate independently of each other and simultaneously They communicate with each other by means of m...

Страница 199: ...y be used for the synchronization of command processing Queries cause the data set management to send the desired data to the output unit 5 8 4 Status Reporting System The status reporting system coll...

Страница 200: ...atic settings are made for the trigger system and timing which cannot be changed by manual control This considerably simplifies operation These settings are not changed when the measurement mode is se...

Страница 201: ...er 1 4 DELay Depends on sensor User selectable TRIGger 1 4 HOLDoff Depends on sensor User selectable TRIGger 1 4 LEVel Depends on sensor User selectable SENSe 1 4 TIMing EXCLude STARt Unchanged is irr...

Страница 202: ...ith the SCPI commands for remote control in order to simplify the transfer of manual control procedures to a remote control program Menu item in manual control SCPI command in short form Sensor Mode S...

Страница 203: ...Offset Edit Table see MEMory Sensor Offset S Parameter Device SENS 1 4 CORR SPD STAT Sensor Filter Auto SENS 1 4 AVER COUN AUTO In Trace mode SENS 1 4 TRAC AVER COUN AUTO Sensor Filter Avg No SENS 1 4...

Страница 204: ...Trigger Mode No individual remote control command is available the trig ger system has to be configured in such a way that the func tion can be implemented e g INIT CONT ON TRIG SOUR BUS and triggerin...

Страница 205: ...t Ref Val Ref Value CALC 1 8 REL Measurement Ref Val Ref Value Reset Result Ref CALC 1 8 REL AUTO ONCE Measurement Limits Warning Sound CALC 1 8 LIM BEEP Measurement Limits Upper Limit On CALC 1 8 LIM...

Страница 206: ...Pass Fail is selected OUTP TTL FAIL HIGH and OUTP TTL LVOLT System I O I O 2 1234 OUTP REC2 FEED System I O I O 2 Analog Out OUTP REC2 STAT ON System I O I O 2 ATrigger In OUTP REC2 STAT OFF System I...

Страница 207: ...tistics Windows Graph Stats Config Scale x Min SENS 1 4 STAT SCAL X RLEV Sensor Mode Trace Statistics Windows Graph Stats Config Aperture Cont SENS 1 4 STAT TIME Sensor Mode Trace Statistics Windows G...

Страница 208: ...NS TRAC MEAS TRAN NEG DUR SENS TRAC MEAS TRAN POS OCC SENS TRAC MEAS TRAN NEG OCC SENS TRAC MEAS POW PULS TOP SENS TRAC MEAS POW PULS BAS SENS TRAC MEAS POW AVG SENS TRAC MEAS POW MAX SENS TRAC MEAS P...

Страница 209: ...e suffix 1 Optional keywords Some command systems permit certain keywords to be inserted into the header or omit ted These keywords are marked by square brackets in the description The instrument must...

Страница 210: ...ation Examples 1 1 0 21 2345553e 6 int_value Is an abbreviation for NR1 MINimum MAXimum DEFault float_value Is an abbreviation for NRf MINimum MAXimum DEFault boolean Stands for ON OFF 0 1 where ON an...

Страница 211: ...3 WAI 203 CLS CLear Status resets the status byte STB standard event register ESR EVENt part of the QUEStionable and the OPERation register Error event queue The command does not alter the ENABle and...

Страница 212: ...r 07 03 firmware version Usage Query only IST status_bit Individual STatus query returns the current value of the IST flag in decimal form The IST flag is the status bit which is sent during a paralle...

Страница 213: ...other by means of commas Option Response string R S NRP B1 NRP B1 Test generator installed R S NRP B2 NRP B2 Second channel interface installed R S NRP B5 NRP B5 Four channel interface installed R S N...

Страница 214: ...state Parameters Value 1 to 19 Available recall numbers for device setups Usage Event RST ReSeT sets the instrument to a defined default status The command essentially corre sponds to command SYSTem P...

Страница 215: ...BM 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 DISP MESS OFF Do not display messages DISP MESS TEXT No...

Страница 216: ...and system will not be affected OUTP REC1 FEED CALC1 Analog outputs are fed by the first calculate block OUTP REC2 FEED CALC2 Analog outputs are fed by the sec ond calculate block OUTP REC 1 2 LIM LOW...

Страница 217: ...VER COUN AUTO NSR NRf Depending on sensor SENS 1 4 AVER COUN AUTO TYPE RES NSR Depending on sensor SENS 1 4 AVER TCON MOV REP PRES and SYSTem PRESet RST SENS 1 4 BAND VID SENS 1 4 BWID VID string Depe...

Страница 218: ...NS 1 4 TSL MID TIME NRf Depending on sensor SENS 1 4 TSL WIDTh NRf Depending on sensor SENS 1 4 RANG 1 2 3 Depending on sensor SENS 1 4 RANG AUT ON OFF Depending on sensor SENS 1 4 RANG CLEV NRf Depen...

Страница 219: ...1 4 TRAC AVER TCON MOV REP PRES and SYSTem PRESet RST SENS 1 4 TRAC OFFS TIME NRf Depending on sensor SENS 1 4 TRAC POINt NR1 Depending on sensor SENS 1 4 TRAC TIME NRf Depending on sensor SENS 1 4 TR...

Страница 220: ...e SAVe stores the current device state under the specified number Parameters Value 1 to 19 Available storage numbers for device setups Usage Event SRE value Setting command SRE Service Request Enable...

Страница 221: ...t TST error code Self TeST query triggers the self test of the instrument and outputs an error code in decimal form Parameters error code 0 1 0 no error 1 an error has occurred Usage Query only WAI WA...

Страница 222: ...y 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 High level commands may be used to confi...

Страница 223: ...tem This command system is used for configuring the sensors and determines the processing of measured data in the sensors The blocks have the following functions SENSe Block Function RANGe Shifts the...

Страница 224: ...correlated to a reference value RELative before it is made available to the user by the UNIT block Measured val ues can be monitored with the LIMit commands 6 4 High Level Measurement Commands CONFigu...

Страница 225: ...n Sum is performed with low level command CALCulate MATH SENS1 SENS2 or by all high level commands which contain SUM in the header e g MEASure TSLot SUM Quantative parameters such as number of slots a...

Страница 226: ...NIT CONT OFF OFF OFF OFF TRIG SOUR IMM INT EXT EXT TRIG COUN 1 1 1 1 TRIG DEL AUTO ON ON ON ON SENS AVER COUN AUTO ON ON ON SENS AVER COUN AUTO TYPE ON ON ON SENS AVER COUN AUTO SLOT 1 SENS AVER STAT...

Страница 227: ...easurements on page 377 for application examples to the high level measurement commands 6 4 2 Basic Commands FETCh and READ FETCh The command FETCh without further keywords and parameter list has a sp...

Страница 228: ...ATH EXPRession on page 228 If calc_function is not specified the measured value of the primary channel is output Command keywords RELative DIFFerence DIFFerence RELative SUM SUM RELative RATio RATio R...

Страница 229: ...OWer AVG BUFFer SIZE on page 270 capture_time Value range depending on sensor Unit S Default value depending on sensor Period within which measured data are captured in the Trace mode Corresponds to c...

Страница 230: ...e and MEASure as a default the user normally does not need to alter this setting Corresponds to commands SENSe 1 4 AVERage COUNt AUTO RESolution on page 263 DISPlay WINDow 1 4 RESolution on page 243 E...

Страница 231: ...vel commands the calculation function is selected by the keyword in the com mand header The following calculation functions are available for calculating the primary channel PC and the secondary chann...

Страница 232: ...of the PC and SC is divided by the reference value SWR PC SC PC SC 1 1 If the forward power of a wave is measured in the PC and the reflected power in the SC the measurement command yields the standi...

Страница 233: ...n source_list CONFigure commands for measurement mode ContAv CONFigure 1 8 SCALar POWer TSLot CONFigure 1 8 SCALar POWer TSLot RELative CONFigure 1 8 SCALar POWer TSLot DIFFerence CONFigure 1 8 SCALar...

Страница 234: ...surement mode ContAv with buffering CONFigure 1 8 XTIMe POWer CONFigure 1 8 XTIMe POWer RATio scope_size capture_time source_list CONFigure commands for measurement mode Trace CONFigure 5 8 XTIMe POWe...

Страница 235: ...e FETCh 1 8 SCALar POWer TSLot SUM FETCh 1 8 SCALar POWer TSLot SUM RELative FETCh 1 8 SCALar POWer TSLot RATio FETCh 1 8 SCALar POWer TSLot RATio RELative FETCh 1 8 SCALar POWer TSLot SWR FETCh 1 8 S...

Страница 236: ...ture_time source_list FETCh commands for measurement mode Statistics 6 4 8 READ commands This chapter lists all READ commands For a description of the command syntax the calculation functions and the...

Страница 237: ...erence RELative READ 1 8 SCALar POWer BURSt SUM READ 1 8 SCALar POWer BURSt SUM RELative READ 1 8 SCALar POWer BURSt RATio READ 1 8 SCALar POWer BURSt RATio RELative READ 1 8 SCALar POWer BURSt SWR RE...

Страница 238: ...ative MEASurement 1 8 SCALar POWer AVG SUM MEASurement 1 8 SCALar POWer AVG SUM RELative MEASurement 1 8 SCALar POWer AVG RATio MEASurement 1 8 SCALar POWer AVG RATio RELative MEASurement 1 8 SCALar P...

Страница 239: ...8 ARRay POWer AVG DIFFerence RELative MEASurement 1 8 ARRay POWer AVG SUM MEASurement 1 8 ARRay POWer AVG SUM RELative MEASurement 1 8 ARRay POWer AVG RATio MEASurement 1 8 ARRay POWer AVG RATio RELa...

Страница 240: ...Culate 1 8 DATA 223 CALCulate 1 8 EXTRemes RESet 223 CALCulate 1 8 FEED 1 2 223 CALCulate 1 8 LIMit BEEP 225 CALCulate 1 8 LIMit CLEar IMMediate 225 CALCulate 1 8 LIMit CLEar AUTO 225 CALCulate 1 8 LI...

Страница 241: ...unit is the current unit of the measured result Possible Units W DBM DBUV DPCT DB O Usage Query only CALCulate 1 8 EXTRemes RESet The R S NRP2 stores the maximum and minimum values for each calculate...

Страница 242: ...interval Trace POWer TRACe POWer PEAK TRACe POWer RANDom TRACe POWer AVERage ON SWEep 1 4 POWer PTAVerage ON SWEep 1 4 POWer PEAK ON SWEep 1 4 Measurement sequence Peak value of the samples per test p...

Страница 243: ...f the following events occurs INITiate IMMediate is executed INITiate CONTinuous ON is executed MEASure or MEASure query is executed READ or READ query is executed Parameters auto ON OFF ONCE ON autom...

Страница 244: ...is determined according to table 6 11 Output unit of measured value of calculate block RST 0 DBM or 0 DB Default unit Default unit see table referred to above Table 6 10 Value ranges depending on the...

Страница 245: ...Sets an upper limit for the measured values The R S NRP2 can respond when this limit is exceeded see other CALCulate 1 8 LIMit commands Parameters upper_limit float_value The value range depends on t...

Страница 246: ...ment function that processes one sensor or two together The result of this calculation is made available as a measured value and can be queried with FETch 1 8 or CALCulate 1 8 DATA The string paramete...

Страница 247: ...ient trans mission 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 measures the forward power of a wave and sensor m the reflected tra...

Страница 248: ...value is reset when the auxiliary values are reset The following formula applies N i i x N x 1 1 Fig 6 5 Mean value of all measured values The unit is the current unit of the measured result Possible...

Страница 249: ...lue RST 0 DBM or 0 DB Default unit See table referred to above CALCulate 1 8 RELative MAGNitude AUTO auto Sets the current measured value as the reference value When used as a setting com mand this co...

Страница 250: ...ded by the reference value set with CALCulate 1 8 RELative MAGNitude Parameters state ON OFF ON all results of the calculate block are divided by the reference value set with CALCulate 1 8 RELative MA...

Страница 251: ...lable with statistics measurements CCDF and PDF It returns the value of the statistics function at the position of the marker if the value is valid Unit O Usage Query only CALCulate 1 4 STATistics MAR...

Страница 252: ...NS STAT TIME SENS STAT OFFS SENS STAT MID TIME and SENS STAT MID OFFS TIME Units DBM W DBUV Usage Query only 6 6 CALibration Suffix 1 4 denotes the four sensors Calibration can be performed for only o...

Страница 253: ...ion is in progress otherwise value OFF The parameters LFR lower frequency range and UFR upper frequency range limit zeroing to a lower and an upper frequency range thus reducing the required time by h...

Страница 254: ...s is are in the Trace mode Since the commands are processed very quickly they are not overlapping The queries therefore always return OFF Error messages 224 Illegal parameter value The transfer param...

Страница 255: ...lay WINDow 1 4 ANALog UPPer 242 DISPlay WINDow 1 4 METer UPPer POWer 242 DISPlay WINDow 1 4 ANALog UPPer POWer 242 DISPlay WINDow 1 4 METer UPPer RATio 243 DISPlay WINDow 1 4 ANALog UPPer RATio 243 DI...

Страница 256: ...yed 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 QUE...

Страница 257: ...comprising an 8 bit BMP bitmap of the dis play content Usage Query only DISPlay UPDate update_frequency Adjusts the update frequency of the measured values in the display In case of disconti nuities i...

Страница 258: ...o quantities are displayed on the right hand side below the frequency Primary channel not in the trace mode Only the frequency of the primary channel and if applicable the frequency of the secondary c...

Страница 259: ...ode RST DIGital DISPlay WINDow 1 4 METer AUTO auto DISPlay WINDow 1 4 ANALog AUTO auto DISP AUTO ONCE automatically determines scaling for the analog display The upper and the lower limit value of the...

Страница 260: ...ent or the number 1 i e the measurement result is a power ratio Value range See table 6 12 Value range Unit DB DPCT O Parameters lower_ratio float_value RST 120 DB Default unit DB DISPlay WINDow 1 4 M...

Страница 261: ...depend on the window n 1 2 3 or 4 Parameters string string RST Example DISP1 NAME Power In DISP2 NAME Power Out The measured values in the display are now visually assigned to the different test point...

Страница 262: ...Error messages 127 Invalid numeric data An invalid number was specified for the resolution Parameters resolution 1 0 1 0 01 0 001 lin Linear scale of measurement result log Logarithmic scale of measur...

Страница 263: ...hat the free space is utilized Likewise open windows become smaller when a new one is opened Parameters state ON OFF RST ON Window 1 OFF Window 2 3 4 DISPlay WINDow 1 4 TRACe LOWer lower_limit Sets th...

Страница 264: ...mea surement commands are used FORMat READings BORDer 246 FORMat READings DATA 246 FORMat SREGister 247 FORMat READings BORDer mode Influences the order of bytes in 64 bit binary data Parameters mode...

Страница 265: ...tables with two columns and up to 80 entries lines can be created Thus not only the sensors but also the frequency response of various test assemblies can be com pensated for during the measurement Th...

Страница 266: ...d by a string for each stored state and then for each stored table this string again consists of two strings and a numeric value string type NR1 string gives the name of the stored data item type the...

Страница 267: ...er of bytes available in memory for storing correction tables and device states as well as the memory already used Usage Query only MEMory FREE STATe Returns the number of bytes available in memory fo...

Страница 268: ...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 Parameters string 1 19 maps the string on the selected memory loca...

Страница 269: ...tion is linear in the units HZ and DB Parameters NRf NRf Enters frequencies in the first column of the table selected with MEM TABL SEL RST Tables are not changed in case of a RST Default unit HZ MEMo...

Страница 270: ...as parameters not the numbers of the memory locations By default the tables are assigned the names Table 1 to Table 10 The name can contain the characters A to Z a to z 0 to 9 and _ The query form of...

Страница 271: ...Mit LOWer 254 OUTPut RECorder 1 2 LIMit LOWer POWer 254 OUTPut RECorder 1 2 LIMit LOWer RATio 254 OUTPut RECorder 1 2 LIMit UPPer 255 OUTPut RECorder 1 2 LIMit UPPer POWer 255 OUTPut RECorder 1 2 LIMi...

Страница 272: ...he measured value Parameters lower_limit float_value RST 20 DBM or 0 DB OUTPut RECorder 1 2 LIMit LOWer POWer lower_limit Specifies the lower power limit of the characteristic for one of the two analo...

Страница 273: ...B OUTPut RECorder 1 2 LIMit UPPer POWer upper_limit Specifies the upper power limit of the characteristic for one of the two analog outputs if the associated calculate block returns a power unit DBM W...

Страница 274: ...nalog output OUTP REC TTL output OUTP TTL Off Ext Trigger In OUT1 x x x OUT2 TRIG x x Parameters state ON OFF RST output 1 ON output 2 OFF OUTPut ROSCillator STATe state The command switches the optio...

Страница 275: ...1st parameter 04 09 or 10 Usage Event Options R S NRP2 B1 OUTPut TTL ACTive string Specifies whether the value set via OUTP TTL LVOL LOW or via OUTP TTL HVOL HIGH should be applied if the measured va...

Страница 276: ...LVOLtage low_voltage Sets the low voltage for the TTL output Note The value for the lower TTL level may be greater than the value for the upper TTL level Parameters low_voltage float_value Range 0 V...

Страница 277: ...figure the power sensors with the exception of the trigger system This includes the measurement modes ContAv Burst Timeslot or Trace the offset corrections and the filter settings Suffix 1 4 denotes t...

Страница 278: ...Ge AUTO 271 SENSe 1 4 POWer AVG RANGe CLEVel 271 SENSe 1 4 POWer AVG SMOothing STATe 271 SENSe 1 4 POWer BURSt DTOLerance 272 SENSe 1 4 POWer TGATe 1 4 EXCLude MID OFFSet TIME 272 SENSe 1 4 POWer TGAT...

Страница 279: ...1 4 TRACe MEASurement POWer MAX 287 SENSe 1 4 TRACe MEASurement POWer MIN 287 SENSe 1 4 TRACe MEASurement POWer PULSe BASE 287 SENSe 1 4 TRACe MEASurement POWer PULSe TOP 287 SENSe 1 4 TRACe MEASureme...

Страница 280: ...y selected sample is returned All evaluations occur using these values instead of the average values RST depending on sensor SENSe 1 4 AVERage COUNt filter_length Sets the filter length i e the number...

Страница 281: ...can thus be prevented in the SENS AVER COUN AUTO TYPE NSR mode if the automatic filter length switchover is on Parameters mtime float_value measurement time Range depending on sensor RST depending on...

Страница 282: ...ieving the same result by filter length setting is attempted only if SENS 1 4 AVER COUN AUTO ON and SENS 1 4 AVER COUN AUTO TYPE NSR are set Unit DB PCT Parameters nsratio float_value Range depending...

Страница 283: ...then determines whether a new result is 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 Note In th...

Страница 284: ...ate Switches the offset correction on or off Parameters state ON OFF RST depending on sensor SENSe 1 4 CORRection DCYCle INPut MAGNitude magnitude Informs the R S NRP2 about the duty cycle of the powe...

Страница 285: ...s The frequency dependent offset tables consist of two columns the first containing the frequencies the second the associated correction values When the R S NRP2 is informed about the signal fre quenc...

Страница 286: ...results Parameters frequency float_value Range depending on sensor RST depending on sensor Default unit HZ SENSe 1 4 FUNCtion ON mode Sets the sensor to the selected measurement mode In remote control...

Страница 287: ...RSt AVG Burst In remote control this measurement mode is very similar to the ContAv mode The integration time is however not predefined but determined by the sensor with the aid of a burst detector Th...

Страница 288: ...owed by a second averaging procedure in a window with a selectable number of values The filter window is configured with the SENSe 1 4 AVERage commands Parameters integration_time float_value Range de...

Страница 289: ...e the measurement accuracy for special signals i e signals with a high crest factor Unit DB PCT Parameters clevel float_value Range depending on sensor RST depending on sensor Default unit DB SENSe 1...

Страница 290: ...the time in which the signal remains below the trigger level is shorter than the drop out tolerance The burst end is thus recognized correctly Drop out time Trigger level Power Time BURSt DTOLerance...

Страница 291: ...4 SENS TGAT2 OFFS TIME SENS TGAT2 TIME SENS TGAT2 MID TIME SENS TGAT2 MID OFFS TIME Fig 6 11 MID parameter in the Timegate mode Parameters time interval float_value Range depending on sensor RST depen...

Страница 292: ...e 1 4 POWer TGATe SELect time_gate Selects one of the four gates in which the average power is measured if the Timegate mode is selected Parameters tgate 1 2 3 4 RST 1 SENSe 1 4 POWer TGATe 1 4 TIME t...

Страница 293: ...sor RST depending on sensor Default unit S SENSe 1 4 POWer TSLot EXCLude MID STATe state Activates or deactivates the blanking out of time intervals in the timeslots There is no direct command equival...

Страница 294: ...e signal output Such a compensation is necessary if the VSWR exceeds a value of 1 05 Otherwise data sheet specifications for absolute accuracy cannot be met reliably To compensate for reflection the m...

Страница 295: ...s extended compared to the normal sampling rate FREQ1 Parameters sampling_rate FREQ1 FREQ2 RST depending on sensor SENSe 1 4 SGAMma MAGNitude magnitude The R S NRP2 can perform a measured value correc...

Страница 296: ...lows a time interval within the time window to be blanked out in this interval the data for the statistics is collected SENS STAT MID OFFS determines the distance from the start of the measurement to...

Страница 297: ...Se 1 4 POWer TGATe 1 4 OFFSet TIME on page 273 Parameters time_interval float_value Range depending on sensor RST depending on sensor Default unit S SENSe 1 4 STATistics SAMPles MINimum minimum Determ...

Страница 298: ...L X RLEV command the range on the power axis over which the statistics function CCDF PDF is calculated see figure 6 14 Setting the power axis for statistics measurements Parameters range float_value R...

Страница 299: ...meters time_interval float_value Range depending on sensor RST depending on sensor Default unit S SENSe 1 4 TIMing EXCLude STARt exclude_start Sets a time that is to be excluded at the beginning of th...

Страница 300: ...1 4 TRACe AVERage COUNt filter_length Sets the length of the filter for the Trace mode The wider the filter the lower the noise and the longer it takes to obtain a measured value Note The SENS TRAC A...

Страница 301: ...ver be exceeded Undesired long measurement times can thus be prevented in the SENS AVER COUN AUTO TYPE NSR mode if the automatic filter length switchover is on Parameters mtime float_value Range depen...

Страница 302: ...imum noise ratio in the measurement result for the Trace mode The setting is taken into account only if SENS 1 4 TRAC AVER COUN AUTO ON and SENS 1 4 TRAC AVER COUN AUTO TYPE NSR are set Unit DB PCT Pa...

Страница 303: ...ls by analyzing the histogram of the trace data The pulse top level is taken on the mean value of all points representing the pulse top Similarly the pulse base is determined from the points represent...

Страница 304: ...the start of the falling edge of the pulse These values are needed for measurement of the rise fall time Unit PCT O Parameters ref_level float_value Range depending on the sensor RST depending on the...

Страница 305: ...computed in the pulse level analysis histogram of the current trace data Usage Query only SENSe 1 4 TRACe MEASurement POWer PULSe TOP Returns the power of the first detected complete pulse of the cur...

Страница 306: ...S TRAC MEAS DEF TRAN HREF and SENS TRAC MEAS DEF TRAN LREF Usage Query only SENSe 1 4 TRACe MEASurement TRANSition NEGative OCCurrence Returns the stop point of the current pulse i e the time when the...

Страница 307: ...sage Query only SENSe 1 4 TRACe MEASurement STATe state Switches on off automatic pulse measurements in the Trace mode If pulse measurement is on the sensor automatically determines the pulse paramete...

Страница 308: ...ng on sensor SENSe 1 4 TRACe TIME time Sets the time to be covered by the Trace sequence Parameters time float_value Range depending on sensor RST depending on sensor Default unit S SENSe 1 4 V2P Usag...

Страница 309: ...e query returns a 1 otherwise a 0 Parameters NR1 int_value Range 0 to 255 Usage Query only SERVice 1 4 CALibration TEMP state Initiates a temperature measurement of the sensor in question The temperat...

Страница 310: ...equence 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 SERVice 1 4 SERRors state The sensors signal an error t...

Страница 311: ...nt 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 E...

Страница 312: ...ers can be accessed 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 f...

Страница 313: ...er The status reporting system also includes the IST flag Individual STatus and the Parallel Poll Enable Register PPE assigned to it The IST flag like the SRQ combines the complete device status in a...

Страница 314: ...Bit No Decimal value Bit No Decimal value 0 1 4 16 8 256 12 4096 1 2 5 32 9 512 13 8192 2 4 6 64 10 1024 14 16384 3 8 7 128 11 2048 15 32768 Table 6 17 Standard SCPI status register CONDition registe...

Страница 315: ...er clears its contents This register is frequently referred to as the overall register ENABle register The ENABle register determines whether the associated EVENt bit influences the summary bit see be...

Страница 316: ...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...

Страница 317: ...r 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 Lim...

Страница 318: ...indow 5 Power Window 6 Power Window 7 Power Window 8 Power 0 0 STAT QUES POW STAT QUES WIND STAT QUES CAL Fig 6 19 Questionable Status Register 6 13 4 Description of Status Registers In the following...

Страница 319: ...n entry 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 yi...

Страница 320: ...n on current device 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...

Страница 321: ...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 t...

Страница 322: ...een 200 and 300 denoting the error in greater detail will be entered in the error queue 5 Command Error This bit is set if an undefined command or a command with incorrect syntax is received An error...

Страница 323: ...mation as to whether a sensor is currently being calibrated and depending on the configuration of the transition register the EVENt reg ister indicates whether a calibration was started or completed s...

Страница 324: ...13 13 Operation Trigger Status Register The CONDition register contains information as to whether a sensor is currently in the WAIT_FOR_TRG state i e expecting a trigger event and depending on the co...

Страница 325: ...reg ister indicates whether a sensor initialization was started or completed since the last readout of this register This status is assumed by a sensor if one of the following conditions is met the s...

Страница 326: ...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 lo...

Страница 327: ...d by the second Calculate block exceeds the upper limit value 3 Window 3 Upper Limit Fail The measured value returned by the third Calculate block exceeds the upper limit value 4 Window 4 Upper Limit...

Страница 328: ...be repeated 8 Sensor D please zero The zero correction for sensor D is no longer correct and should be repeated 9 to 14 Not used 15 Bit 15 will never be used The sensor power bit is set when error 23...

Страница 329: ...A bit is set if the error 231 Data questionable occurs in the respective calculate block 6 13 19 Questionable Calibration Status Register The EVENt register and the CONDition register contain informat...

Страница 330: ...of the status registers are set accordingly any bit in any status register will be able to trigger an SRQ To utilize the possibilities of the service request all bits in the enable registers SRE and E...

Страница 331: ...l mode is mainly used to quickly find out which of the many devices con nected to the IEC IEEE bus caused an SRQ For this purpose SRE and PPE must be set to the same value 6 13 20 4 Queries Each part...

Страница 332: ...ce Clear RST or SYSTem PRESet STATus PRESet CLS Power On Status Clear PSC Effect 0 1 Clear STB Status Byte and ESR Standard Event Status Register yes yes Clear SRE Service Request Enable and ESE Stand...

Страница 333: ...STem DATE 318 SYSTem IDN 318 SYSTem IDN AUTO 318 SYSTem INFO 318 SYSTem ERRor 319 SYSTem ERRor EXTended STATe 320 SYSTem KEY 320 SYSTem LANGuage 321 SYSTem OPT 321 SYSTem OPT AUTO 321 SYSTem PRESet 32...

Страница 334: ...state ON OFF RST OFF SYSTem BEEPer STOP Stops the output of an audible signal Usage Event SYSTem BEEPer TIME nrf Sets the length in milliseconds of the audible signal output with SYS BEEP Parameters n...

Страница 335: ...your LAN If you are not sure how to configure these settings please ask your network administrator Parameters ip1 ip2 ip3 ip4 int_values The four parameter form the IP address ip1 ip2 ip3 ip4 For exam...

Страница 336: ...the clock was not set after the last power on of the R S NRP2 The date is set in the format yyyy m m d d This setting is not changed by RST Table 6 33 Parameter range Parameter Value range year 2000 2...

Страница 337: ...Usage Query only SYSTem ERRor This query returns error numbers and text from the error event queue of the R S NRP2 A specific error number with text is entered in the error event queue for each error...

Страница 338: ...haracter_value or by a key code NR1 see following table Table 6 34 Valid parameter values for the SYSTem KEY command Simulated front panel key character_value NR1 Softkey toggle 1 left SK1L 1 Softkey...

Страница 339: ...erent power meters by changing the remote command set As the list of supported instruments is extended continuously the emulations are documented in separate appli cation notes Parameters emulation ch...

Страница 340: ...ge Event SYSTem SENSor 1 4 RESet From the point of view of the R S NRP2 base unit the sensors are stand alone meas uring devices They communicate with the R S NRP2 via a command set complying with SCP...

Страница 341: ...NRP2 The SYST STAN PRES command sets the listed parameters and if desired also configures front panel display windows if SYST STAN PWS ON Parameters string The available standards and the associated...

Страница 342: ...timing conditions for the start of a mea surement When the sensors are connected to the R S NRP2 they inform the device about the SENSe and TRIGger commands supported and about the value ranges for p...

Страница 343: ...diately 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 influence...

Страница 344: ...of a measurement for specific sensors if the INIT ALL IMM command is used Parameters state ON OFF RST OFF INITiate 1 4 IMMediate INITiate ALL IMMediate This command starts a single shot measurement T...

Страница 345: ...ALL SYNC works only in conjunction with INIT ALL Parameters state ON OFF RST OFF Example synchronized measurement with 2 heads RST TRIG ALL SLOP POS TRIG ALL SOUR EXT TRIG ALL SYNC ON INIT ALL FETCh1...

Страница 346: ...ger period is set with TRIG 1 4 DEL Parameters state ON OFF RST depending on sensor TRIGger 1 4 DTIMe dtime TRIGger ALL DTIMe dtime If the trigger level has been underrun with internal triggering it i...

Страница 347: ...s command is used to specify how far the signal level has to drop below the trigger level before a new signal edge can be detected as a trigger event Thus this command can be used to eliminate the eff...

Страница 348: ...lows the syn chronous triggering of other sensors The trigger master must be not be set to external triggering however all other sensors have too be set to external triggering TRIG SOUR EXT The trigge...

Страница 349: ...nal The sensor determines the trigger time by means of the signal to be measured When this signal exceeds TRIG SLOP POS or fall short of TRIG SLOP NEG the power set by TRIG LEV the mea surement is sta...

Страница 350: ...8 POWer RATio output_unit 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...

Страница 351: ...se cleaning agents such as solvents thinners acetone etc acids bases or other substances The outside of the instrument can be cleaned sufficiently using a soft lint free dust cloth 7 1 Sensor test The...

Страница 352: ...Maintenance R S NRP2 334 User Manual 1173 9157 02 03 Storage...

Страница 353: ...ge 58 Symbols especially used for indicating error are The signal level is outside the set limit A trigger event is required but missing To adjust the trigger settings see chap ter 4 2 6 Trigger setti...

Страница 354: ...essage is displayed if the error queue is empty 8 2 2 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 Comm...

Страница 355: ...that indexes the 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 contai...

Страница 356: ...ed A request for a measurement initialization was ignored as another measurement was already in progress 214 Trigger deadlock A measurement could not be started or a result query could not be processe...

Страница 357: ...cific Errors Device specific error causes bit 5 to be set in the ESR register Error code Error text returned upon queue query Explanations 300 Device specific error Generic device dependent error that...

Страница 358: ...INTERRUPTED The query was interrupted Example The query is followed by new data before the response was completely sent 420 Query UNTERMINATED An incomplete query was received 430 Query DEADLOCKED Th...

Страница 359: ...the set measurement mode 39 Sensor removed while waiting for result A sensor was disconnected while the device was waiting for measurement results 42 Failed to initialize sensor A sensor could not be...

Страница 360: ...t is generated 54 Sample error Samples were lost while sampling the signal applied The measured value can thus be incor rect 55 Sensor hardware error A sensor signalled an error in the sensor hardware...

Страница 361: ...ccess to Firmware Update and Bootmenu 1 To open the Bootmenu press the softkey to the right Fig 8 2 Bootmenu button The login window opens Fig 8 3 Login 2 Enter the password The password is 7396 and c...

Страница 362: ...instrument e g serial numbers firmware version or ethernet address Fig 8 5 Boot menu System Info Service Opens the R S NRP2 service menu see chapter 8 3 2 Service Menu on page 345 Erase Nonvol Data De...

Страница 363: ...zed completely Sample error message Activates that an error message is displayed if a sample error occurs 8 3 2 Service Menu The R S NRP2 offer various service functions to perform system tests that a...

Страница 364: ...s uninstall In addition the network connection can be established Display Test Checks whether inputs via the softkeys are correctly indicated Fig 8 9 Service menu Display test Press some of the number...

Страница 365: ...ress a key more than once the instrument displays a warning message This dialog box closes if you either have pressed all keys or if you have not pressed any key within 15 seconds Buzzer Test Tests th...

Страница 366: ...Error Messages and Troubleshooting R S NRP2 348 User Manual 1173 9157 02 03 Bootmenu...

Страница 367: ...n how to configure the interfaces see chapter 4 7 1 Configuring the remote control interfaces on page 143 All other hardware interfaces are described in chapter 1 6 Rear Panel on page 15 For specifica...

Страница 368: ...he connected devices to the default state ATN Attention Active LOW indicates the transmission of interface messages non active HIGH indicates the transmission of device messages SRQ Service Request Ac...

Страница 369: ...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 EOS SR1 Se...

Страница 370: ...End of serial poll PPU Parallel Poll Unconfigure End of parallel poll query status A 1 5 2 Addressed commands Addressed commands are in the code range 0x00 to 0x0F hex They only affect devices addres...

Страница 371: ...work instrument client in a controller with several logical 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...

Страница 372: ...orts channel services can be addressed For this reason it is important that any firewalls or routers between the client and the R S NRP2 enable free access from the controller to the R S NRP2 core and...

Страница 373: ...emote mode device_local core Puts the network instrument device in the local mode device_lock core Local lockout LLO The keyboard of the network instrument device is locked device_unlock core Undoes t...

Страница 374: ...smitting the special control sequences These modes can be set via remote control using the following command SYSTem COMMunicate INET MODE 0 1 2 The parameter has the following meanings 0 no control se...

Страница 375: ...state can be achieved by using newly defined control characters GTM GoTo Mixed A 3 1 3 The IEC IEEE 1174 2 mode The IEC IEEE 1174 2 mode differs from the 1174 1 mode depending on where the special co...

Страница 376: ...ernet The IEC IEEE 1174 draft does not provide this simulta neous operation because the remote control state is automatically assumed when data is received GTR go to remote This control character chan...

Страница 377: ...ted peer sockets will be created link 1 and link 2 via which communications take place The R S NRP2 accepts the role of the server and the remote control program is the client Link 1 is used to transm...

Страница 378: ...SCPI common command sre 0 Sending the SCPI common command idn Close Link2 Close Link1 INCLUDE FILES include stdio h include winsock2 h LOCAL DEFINES define IP_ADDR 192 168 1 2 IP address of NRP2 defi...

Страница 379: ...P Address and Port of NRP2 saDevice sin_addr s_addr inet_addr IP_ADDR saDevice sin_port htons u_short PORT_NO saDevice sin_family AF_INET Connecting Link 1 nRet connect soLink1 LPSOCKADDR saDevice siz...

Страница 380: ...esocket soLink2 closesocket soLink1 printf Send IDN failed n return 1 else printf Send IDN was successfully n Receive idn Response nRet recv soLink1 ResponseMessage MAX_RECV 0 if nRet 0 closesocket so...

Страница 381: ...88 2 compatible communications can be implemented via USB As with remote control via VXI11 the use of VISA distribution with a USBTMC driver is recommended for remote control via USB The VISA resource...

Страница 382: ...Remote control interfaces R S NRP2 364 User Manual 1173 9157 02 03 USB interface...

Страница 383: ...CDMA2000 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 UNIT are also configured Table...

Страница 384: ...Bm Trigger Source TRIG SOUR INT Trigger Slope TRIG SLOP POS Trigger Holdoff TRIG HOLD 27 ms Trigger Dropout Time TRIG DTIM 0 s Trigger Hysteresis TRIG HYST 3 dB Table 2 2 NADC DOWNLINK Sensor paramete...

Страница 385: ...Fence SENS TGAT MID OFF Trace Offset Time SENS TRAC OFFS TIME 500 s Trace Capture Time SENS TRAC TIME 42 ms Trace Number Of Points SENS TRAC POIN 261 Trace Realtime SENS TRAC REAL OFF Trigger Delay TR...

Страница 386: ...t Fence SENS TSL MID OFF Timegate Offset SENS TGAT OFFS TIME 1 125 s 2 20 125 ms Timegate Length SENS TGAT TIME 1 6 406 ms 2 6 406 ms Timegate Fence SENS TGAT MID OFF Trace Offset Time SENS TRAC OFFS...

Страница 387: ...ENS TGAT TIME 1 348 055 ms 2 348 000 ms Timegate Fence SENS TGAT MID OFF Trace Offset Time SENS TRAC OFFS TIME 200 s Trace Capture Time SENS TRAC TIME 10 250 ms Trace Number Of Points SENS TRAC POIN 2...

Страница 388: ...NS TIM EXCL STAR 25 s Exclude Time End SENS TIM EXCL STOP 40 s Number Of Timeslots SENS TSL COUN 15 Timeslot Width SENS TSL WIDT 666 667 s Timeslot Fence SENS TSL MID OFF Timegate Offset SENS TGAT OFF...

Страница 389: ...lot Fence SENS TSL MID OFF Timegate Offset SENS TGAT OFFS TIME 1 15 s 2 5 348 ms Timegate Length SENS TGAT TIME 1 611 667 s 2 612 s Timegate Fence SENS TGAT MID OFF Trace Offset Time SENS TRAC OFFS TI...

Страница 390: ...POIN 261 Trace Realtime SENS TRAC REAL OFF Trigger Delay TRIG DEL 0 s Trigger Level TRIG LEV 30 dBm Trigger Source TRIG SOUR INT Trigger Slope TRIG SLOP POS Trigger Holdoff TRIG HOLD 19 9 ms Trigger D...

Страница 391: ...Dropout Time TRIG DTIM 0 s Trigger Hysteresis TRIG HYST 3 dB Table 2 12 Bluetooth DH3 Sensor parameter Remote control command in short form Value Sensor Mode SENS FUNC POW XTIM Aperture Time SENS APER...

Страница 392: ...APER 3 75 ms Duty Cycle SENS DCYC 76 533 Duty Cycle Correction SENS DCYC STAT ON Smoothing SENS SMO OFF Dropout Tolerance SENS BURST DTOL 2 870 ms Exclude Time Start SENS TIM EXCL STAR 10 s Exclude Ti...

Страница 393: ...TRIG DTIM 0 s Trigger Hysteresis TRIG HYST 3 dB Table 2 14 CDMA2000 Sensor parameter Remote control command in short form Value Sensor Mode SENS FUNC POW AVG Aperture Time SENS APER 80 ms Duty Cycle...

Страница 394: ...Standard Configurations R S NRP2 376 User Manual 1173 9157 02 03...

Страница 395: ...n their long form so that their meaning is easier to understand The R S NRP2 makes no distinction between upper case and lower case letters they are only used to distinguish between the short and long...

Страница 396: ...CALC REL AUTO ONCE The second measurement command MEAS REL and all other MEAS REL commands will divide the absolute measured value by the stored ref erence value CALC REL POW float_value is used to d...

Страница 397: ...nel 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...

Страница 398: ...ted by a comma for the timeslots Example 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 the power puls...

Страница 399: ...n from the measured values of sensors 1 and 3 C 1 5 Selecting the output unit for measured values So far no information has been given on the unit of the measured values It is possible to modify the o...

Страница 400: ...ns better per formance as compared to measurements performed with MEAS since the time for configuring the measurement is only used once After CONF settings can be adapted to user s requirements by mea...

Страница 401: ...During this time no other command should be sent to the R S NRP2 since the query has to be answered first If a command is sent to the R S NRP2 the SCPI error 410 Query interrupted is output However F...

Страница 402: ...T have not yet been processed or the R S NRP2 returns to the IDLE state The state is only entered internally and is not noticed by the user WAIT_FOR_TRG The R S NRP2 waits for a trigger event The sour...

Страница 403: ...Measured values raw data CALCulate UNIT SENSe SENS 1 4 Fig 3 2 Processing of measured values in the R S NRP2 The high level commands and the SENSe block allow indices to be specified These indi ces r...

Страница 404: ...Av mode The concept of smart sensor technology provides that each sensor determines the reset values of the assigned SENSe and TRIGger block Thus another mode than ContAv may come after RST with futur...

Страница 405: ...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 NRP2 TRG does not have this meaning TRG only e...

Страница 406: ...ement has been completed This makes sense espe cially with internal triggering BurstAv mode Ignored trigger event Power Time TRIG HOLDoff TRIG DELay Trigger event Measurement Trigger level Fig 3 3 Mea...

Страница 407: ...wer fails by 50 s and this range is to be excluded from the measurement Sol ution A 50 s Fence is defined The sample values in this interval are not included in the measurement RST SENS FUNC POW TGAT...

Страница 408: ...ulated 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 mea sured in the Bur...

Страница 409: ...beginning and end of pulses The trigger source setting is ignored As described above the conditions for the detection of the pulse end can be set with commands SENS BURS DTOL and TRIG HYST RST SENS F...

Страница 410: ...th is set in power of two numbers RST SENS AVER STAT ON activates filtering SENS AVER COUN AUTO OFF switches off filter length automatic mode SENS AVER COUN 4 permanently sets filter length to 4 INIT...

Страница 411: ...value C 4 3 3 Measured value corrections The R S NRP2 offers different options for correcting measured values in the instrument These options all require an existing knowledge of the test setup or th...

Страница 412: ...ficient of the source source gamma Reflections at the power source may distort the result If the reflection coefficient of the source is known it can be specified for the measured value correction via...

Страница 413: ...he aid of the low level commands Two basic types of measurements are conceivable Measurement of a density distribution curve versus power An array of statistic values is returned Measurement with the...

Страница 414: ...As in manual operation marker measurements can also be performed by remote control For this purpose a remote control command is used to set a value on the density distri bution axis or the power axis...

Страница 415: ...f dur ref pulse duration sens trac meas def tran lref start of rising end of falling edge sens trac meas def tran href start end of pulse top sens trac meas puls dcyc read duty cycle sens trac meas pu...

Страница 416: ...igure calcblock 2 with sensor 2 in Trace mode trig2 sour INT Internal trigger source trig2 master ON sensor 2 is trigger master trig1 sour EXT sensor 1 is slave with external trigger source init1 imm...

Страница 417: ...ion SENS CORR DCYC STAT OFF no duty cycle correction SENS CORR FDOT STAT OFF no frequency dependent offset correction SENS SGAM CORR STAT OFF no measured value correction for reflection coefficient of...

Страница 418: ...Programming Measurements R S NRP2 400 User Manual 1173 9157 02 03 Optimization of measurement speed...

Страница 419: ...tion DISPlay SCREen FORMat NUMeric 1 2 Is not implemented in the R S NRP2 INITiate CONTinuous SEQUence 1 2 IMMediate SEQUence 1 2 The SEQUence node is not implemented in the R S NRP2 MEMory TABLe GAIN...

Страница 420: ...NRP2 and has the same effect as SENSe TGATe TIME SYSTem COMMunicate SERial HELP HEADers LOCal REMote RINTerface RWLock Is not implemented in the R S NRP2 TRACe STATe Is not implemented in the R S NRP2...

Страница 421: ...d AC of some high level commands and SENSe commands CONFigure READ MEASure FETCh SCALar POWer AC RELative DIFFerence DIFFerence RELative RATio RATio RELative SENSe POWer AC RANGe AUTO The R S NRP2 als...

Страница 422: ...Compatibility Information R S NRP2 404 User Manual 1173 9157 02 03...

Страница 423: ...ulate 1 8 COUNt DATA 223 CALCulate 1 8 DATA 223 CALCulate 1 8 EXTRemes RESet 223 CALCulate 1 8 FEED 1 2 223 CALCulate 1 8 LIMit BEEP 225 CALCulate 1 8 LIMit CLEar AUTO 225 CALCulate 1 8 LIMit CLEar IM...

Страница 424: ...8 ARRay POWer AVG DIFFerence RELative 216 CONFigure 1 8 ARRay POWer AVG RATio 216 CONFigure 1 8 ARRay POWer AVG RATio RELative 216 CONFigure 1 8 ARRay POWer AVG REFLection 216 CONFigure 1 8 ARRay POWe...

Страница 425: ...CONFigure 1 8 SCALar POWer AVG RLOSs 215 CONFigure 1 8 SCALar POWer AVG SUM 215 CONFigure 1 8 SCALar POWer AVG SUM RELative 215 CONFigure 1 8 SCALar POWer AVG SWR 215 DISPlay ERRorlist 237 DISPlay ILL...

Страница 426: ...St DIFFerence RELative 217 FETCh 1 8 SCALar POWer BURSt RATio 217 FETCh 1 8 SCALar POWer BURSt RATio RELative 217 FETCh 1 8 SCALar POWer BURSt REFLection 217 FETCh 1 8 SCALar POWer BURSt RELative 217...

Страница 427: ...ASurement 1 8 ARRay POWer AVG SUM RELative 221 MEASurement 1 8 ARRay POWer AVG SWR 221 MEASurement 1 8 STATistics CCDF 221 MEASurement 1 8 STATistics PDF 221 MEASurement 1 8 XTIMe POWer 221 MEASuremen...

Страница 428: ...220 MEMory CATalog STATe 248 MEMory CATalog TABLe 248 MEMory CATalog ALL 248 MEMory CLEar TABLe 249 MEMory CLEar NAME 248 MEMory FREE STATe 249 MEMory FREE TABLe 249 MEMory FREE ALL 249 MEMory NSTate...

Страница 429: ...RSt 219 READ 1 8 SCALar POWer BURSt DIFFerence 219 READ 1 8 SCALar POWer BURSt DIFFerence RELative 219 READ 1 8 SCALar POWer BURSt RATio 219 READ 1 8 SCALar POWer BURSt RATio RELative 219 READ 1 8 SCA...

Страница 430: ...er NOTify KEY 316 SYSTem BEEPer NOTify OVERload 316 SYSTem BEEPer STOP 316 SYSTem BEEPer TIME 316 SYSTem BEEPer IMMediate 315 SYSTem COMMunicate GPIB SELF ADDRess 316 SYSTem COMMunicate INET MODE 317...

Страница 431: ...TRIGger 1 4 SLOPe 330 TRIGger 1 4 SOURce 330 TRIGger 1 4 SYNChronize STATe 331 TRIGger 1 4 IMMediate 329 UNIT 1 8 POWer 331 UNIT 1 8 POWer RATio 332 SENSe 1 4 AUXiliary 261 SENSe 1 4 AVERage COUNt 262...

Страница 432: ...FSet TIME 278 SENSe 1 4 STATistics EXCLude MID TIME 278 SENSe 1 4 TIMing EXCLude STARt 281 SENSe 1 4 TIMing EXCLude STOP 281 SENSe 1 4 TRACe AVERage COUNt 282 SENSe 1 4 TRACe AVERage COUNt AUTO 282 SE...

Страница 433: ...289 SENSe 1 4 TRACe MEASurement STATe 289 SENSe 1 4 TRACe OFFSet TIME 289 SENSe 1 4 TRACe POINts 289 SENSe 1 4 TRACe REALtime 290 SENSe 1 4 TRACe TIME 290 SENSe 1 4 V2P 290 SENSe 1 4 POWer BURSt DTOL...

Страница 434: ...175 CCDF 138 CDF 138 Channel statistics display 138 Closing windows 92 Command description 191 Config Fence 70 Config Gates 121 Config Grid 115 Config Pulse 126 Config 163 Cont inuous statistics disp...

Страница 435: ...346 Keywords optional 191 L Length of Fence 71 Length of Gate 71 Level Sensor Trigger 87 Limit Fail 335 LIMIT FAIL 58 Limit warning 159 Low reference power pulse 128 M Manual operation 49 Marker Stati...

Страница 436: ...5 Rise time 127 Rohde Schwarz control sequences 358 RUN 58 S S N 58 Sample Error 165 Sample error message 345 Samples statistics display 139 Sampling rate 67 Save 140 Scale tab Statistics display 136...

Страница 437: ...mum 128 peak 128 Trace 1 2 118 119 Trace 1 2 statistics display 138 Trace Avg No 118 Trace display mode 114 Trace Func T slot 132 Trace function 119 Trace function settings 118 Trig 115 Trigger missin...

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