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Connecting the sensor

R&S NRP-Z28/-Z98

1170.8966.12

1.4

E-6

Fig. 1-1

Configuration with the R&S NRP/NRP2

Performing measurements

The R&S NRP-Z28/-Z98 power sensors behave in a similar manner as the R&S NRP-Z21 and
R&S NRP-Z91 multipath diode sensors. Unlike these, however, instead of the power fed to the sensor,
the power

supplied to the DUT is measured. By means of the

S-parameter correction

function,

adapters or attenuators connected ahead of the DUT can be taken into consideration. The

gamma

correction

function allows the influence of a mismatched DUT to be reduced.

DUT

R&S NRP/NRP2

R&S NRP-Z28/-Z98

Содержание 1170.8008.02

Страница 1: ...1170 8966 12 08 1 Operating Manual Level Control Sensor R S NRP Z28 1170 8008 02 R S NRP Z98 1170 8508 02 Test and Measurement...

Страница 2: ...1170 8966 12 08 2 Dear Customer R S is a registered trademark of Rohde Schwarz GmbH Co KG Trade names are trademarks of the owners...

Страница 3: ...rsonal injury or damage caused by dangerous situations Safety information is provided as follows In the Getting Started manual Chapter 1 1 Safety instructions The same information is provided in many...

Страница 4: ......

Страница 5: ...ol 1 5 Hardware and software requirements 1 5 Operation via the R S NRP Z4 passive USB adapter 1 7 Operation via the R S NRP Z3 active USB adapter 1 7 Operation via the R S NRP Z5 Sensor Hub 1 9 Equip...

Страница 6: ...ement on PC with the R S NRP Z3 active USB adapter 1 7 Fig 1 5 Changing the primary adapter 1 8 Fig 1 6 Ports and LEDs on front panel 1 10 Fig 1 7 Ports on rear panel 1 10 Fig 1 8 Unlatching the R S I...

Страница 7: ...ains components which can be destroyed by electrostatic discharges To prevent this from happening never touch the inner conductor of the RF connector and never open the power sensor Connecting the sen...

Страница 8: ...Connecting the sensor R S NRP Z28 Z98 1170 8966 12 1 2 E 6 Do not apply excessive mechanical force to the RF connectors of the R S NRP Z28 Z98 and DUT F F F F...

Страница 9: ...NRP NRP2 base unit when it is in operation The multiple circular plug in connector must be inserted red marking upwards into one of the R S NRP NRP2 base unit s sensor connectors When the power sensor...

Страница 10: ...Z21 and R S NRP Z91 multipath diode sensors Unlike these however instead of the power fed to the sensor the power P supplied to the DUT is measured By means of the S parameter correction function ada...

Страница 11: ...are met the power sensor can be controlled using a suitable application program such as the NrpFlashup program contained in the Microsoft Windows version of the NRP Toolkit includes the modules Power...

Страница 12: ...USB devices are listed here Double click USB Root Hub or select Properties in the context menu use the right hand mouse button Select the Power tab Fig 1 1 If the hub is self powered and the total pow...

Страница 13: ...e USB adapter The plug in power supply for the R S NRP Z3 can be powered from a single phase AC source with a nominal voltage range of 100 V to 240 V and a nominal frequency between 50 Hz and 60 Hz Th...

Страница 14: ...circuit proof and has an internal fuse It is not possible to replace this fuse or open the plug in power supply NOTICE The plug in power supply is not intended for outdoor use Keep within the temperat...

Страница 15: ...ssive R S NRP Z4 interface adapter instead of a standard USB cable As an alternative to the supplied external power supply power can also be supplied using a DC voltage source with an output voltage o...

Страница 16: ...LEDs on front panel On the rear panel are the ports for power supply USB host trigger input and trigger output The ports on the rear panel are shown in Fig 1 7 1 Trigger output BNC socket 2 Trigger i...

Страница 17: ...LEDs the R S NRP Z4 passive interface adapter can also be used as an alternative to a standard USB cable for connecting to the PC This adapter is connected to the R S Instrument port Simultaneous oper...

Страница 18: ...Connecting the sensor R S NRP Z28 Z98 1170 8966 12 1 12 E 6 Fig 1 9 Typical test setup with R S NRP Z5 and PC...

Страница 19: ...owing step by step description is based on an English version of Windows XP 1 Connect the R S NRP Z5 and put it into operation Connect at least one power sensor 2 Start the Device Manager and change t...

Страница 20: ...tput of a signal source and connect the RF connector of the power meter to the input of the DUT By slightly lifting the power sensor you can screw it on more easily without tilting it Performing measu...

Страница 21: ...sors are generally connected to the USB ports of the test instrument via one of the two interface adapters R S NRP Z3 or R S NRP Z4 or the Sensor Hub R S NRP Z5 On some instruments such as the R S SMU...

Страница 22: ......

Страница 23: ...R S NRP Z28 Z98 Table of Contents Chapter 2 1170 8966 12 I 2 1 E 1 Table of Contents 2 Virtual Power Meter 2 1 Overview 2 1 Menus 2 3...

Страница 24: ...Figs and Tables Chapter 2 R S NRP Z28 Z98 1170 8966 12 I 2 2 E 1 Figs Fig 2 1 Power Viewer virtual power meter 2 1 Tables Table 2 1 Virtual power meter keys 2 2 Table 2 2 Virtual power meter entry fie...

Страница 25: ...an extremely brief familiarization period you can perform measurements The other modules in NrpFlashup are described in Chapter 3 of the operating manual Terminal and Update S Parameters modules or in...

Страница 26: ...o Turns auto averaging on or off When auto averaging is on the Length entry field has a grey background the current averaging factor is displayed Alt T Apply Accepts edited numerical values in the Fre...

Страница 27: ...og file recording View Display Refresh Rate Opens a dialog box to adjust the display refresh rate The time in milliseconds between two refresh operations is entered The default setting is 200 ms Colou...

Страница 28: ...to try out the functions of the virtual power meter even without a power sensor The display alternates between Measurement Value 1 Measurement Value 2 with a period given by Interval Simulation can be...

Страница 29: ...er 33 1170 8966 12 I 3 1 E 1 Table of Contents 3 Manual Operation 3 1 Program module Terminal 3 1 Main control elements 3 1 Menus 3 3 Program module Firmware Update 3 6 Program module Update S Paramet...

Страница 30: ...loading the backup file of a calibration data set 3 11 Fig 3 5 Subsequently changing the default behavior of the s parameter correction 3 12 Tables Table 3 1 Buttons assigned to the Input field 3 2 Ta...

Страница 31: ...status information and other data from the sensor Firmware Update Program module for updating the sensor firmware Update S Parameters Program module for loading an s parameter table into the sensor P...

Страница 32: ...og window where the font for the Input field can be selected Colour key Opens a dialog window where the background colour of the Input field can be selected Table 3 2 Buttons assigned to the Command F...

Страница 33: ...ing the menu item Copy in the opened context menu Alt Y Font button Opens a dialog window where the font for the Output field can be selected Colour button Opens a dialog window where the background c...

Страница 34: ...d are recorded If Trigger on first incoming response is active the time measurement is terminated as soon as the first response arrives after a command is sent If Trigger on response matching filter s...

Страница 35: ...utomatically shifted upward and off the display if space is required for new values LF at EOT With this option active a line feed is appended to each response block from the power sensor Delete on Sta...

Страница 36: ...t 2 corresponds to the port on the sensor end and port 1 to the port on the DUT end The measurement frequencies in the s parameter table can be selected independent of the calibration frequencies of t...

Страница 37: ...isplay format as specified in the option line i jk i jk f s f s arg display format for linear magnitude and phase in degree or i jk i jk f s f s arg lg 20 display format for magnitude in dB and phase...

Страница 38: ...y is made for R R50 must be specified If no entry is made R50 is implicitly assumed The option line should therefore read HZ KHZ MHZ GHZ U MA DB RI R 50 2 Measurement frequencies in ascending order ar...

Страница 39: ...1 NOTICE The upper nominal measurement limit of the sensor twoport combination entered when loading the s parameters should be carefully specified as automatic test systems may evaluate it and an inc...

Страница 40: ...ected 5 Enter the upper and lower nominal measurement limit of the sensor twoport combination in the Lower Power Limit and Upper Power Limit fields 6 Enter a name for the loaded s parameter set in the...

Страница 41: ...oading With the aid of these files a previously used calibration data set of the sensor can be restored To reload the backup file of a calibration data set into the sensor proceed as follows 1 Press t...

Страница 42: ...Program module Update S Parameters R S NRP Z28 Z98 1170 8966 12 3 12 E 1 Fig 3 5 Subsequently changing the default behavior of the s parameter correction...

Страница 43: ...R S NRP Z28 Z98 Table of Contents Chapter 5 1170 8966 12 I 5 1 E 1 Table of Contents 5 Remote Control Fundamentals 5 1...

Страница 44: ......

Страница 45: ...trol of R S NRP power sensors and power sensor modules This driver can be found on the CD ROM supplied with the sensor or downloaded in its most recent version via the internet http rohde schwarz com...

Страница 46: ......

Страница 47: ...COUNt 6 9 SENSe AVERage COUNt AUTO TYPE RESolution NSRatio 6 10 SENSe AVERage RESet 6 10 SENSe AVERage STATe OFF ON 6 10 SENSe AVERage TCONtrol MOVing REPeat 6 10 SENSe CORRection DCYCle 0 001 to 99...

Страница 48: ...Ltime OFF ON 6 22 SENSe TRACe TIME 0 0001 to 0 3 6 22 SYSTem 6 23 SYSTem INFO Item 6 23 SYSTem INITialize 6 25 SYSTem MINPower 6 25 SYSTem RUTime 0 0 to 10 0 6 25 SYSTem SUTime 0 0 to 10 0 6 25 SYSTem...

Страница 49: ...SENSe TIMing EXCLude STARt and STOP in the Burst Average mode 6 19 Fig 6 5 Effect of SENSe TIMing EXCLude STARt and STOP in the Timeslot Average mode 6 20 Tables Table 6 1 Commands of the CALibration...

Страница 50: ......

Страница 51: ...ation of the command includes the higher levels too Example SENSe AVERage COUNt is represented in the table as follows SENSe first level AVERage second level COUNt third level In the individual descri...

Страница 52: ...te Control Commands R S NRP Z28 Z98 1170 8966 12 6 2 E 4 parameter variable A parameter or a variable in triangular brackets expresses its current value This command is only available with the R S NRP...

Страница 53: ...ure ROHDE SCHWARZ NRP Z28 serial number firmware version serial number Serial number in ASCII firmware version Firmware version number in ASCII RST Reset RST sets the sensor to the default state i e t...

Страница 54: ...Gth Bytes Query only ZERO AUTO OFF ON ONCE CALibration DATA calibration data set as definite length block CALibration DATA is used for writing a calibration data set in the flash memory of the sensor...

Страница 55: ...nnecting the instrument after a substantial variation of the ambient temperature after fastening the sensor to an RF connector at high temperature after several hours of operation when very low power...

Страница 56: ...TIMe 0 01 to 999 99 s NSRatio 0 0 to 1 0 dB RESolution 1 to 4 SLOT 1 to SENSe POWer TSLot AVG COUNt TYPE RESolution NSRatio RESet No query STATe OFF ON TCONtrol MOVing REPeat CORRection DCYCle 0 001 t...

Страница 57: ...Th 10 0e 6 to 0 1 s RANGe 0 to 2 AUTO OFF ON CLEVel 20 0 to 0 0 dB SAMPling FREQ1 FREQ2 SGAMma CORRection STATe OFF ON MAGNitude 0 0 to 1 0 PHASe 360 0 to 360 0 degree TIMing EXCLude STARt 0 0 to 0 1...

Страница 58: ...ed filter mode automatic determination of the averaging factor in the modes Continuous Average Burst Average and Timeslot Average If auto averaging is activated the averaging factor is continuously de...

Страница 59: ...measurement result in dBm dBSV or dB The normal mode is designed in a similar manner as for the predecessors R S NRVS and R S NRVD or other commercial power meters The higher the selected index the b...

Страница 60: ...eting all previous measurement results that the averaging filter contains After initialization the filter length gradually increases from 1 to its nominal value SENSe AVERage COUNt so that trends in t...

Страница 61: ...e query yields 1 for OFF 2 for ON Default setting OFF SENSe CORRection OFFSet 200 0 to 200 0 SENSe CORRection OFFSet defines a fixed offset in dB which is used to correct the measured value When a log...

Страница 62: ...to account To take the influence of the DUT into account however its complex reflection coefficient DUT at the current measurement frequency must be transmitted to the sensor and the gamma correction...

Страница 63: ...he measurement is performed with chopper stabilization The polarity of the detector output signal is therefore reversed from frame to frame By subsequently taking the difference of the output signals...

Страница 64: ...e set at the beginning and the end of the sampling window or timeslot in the measurement modes Burst Average and Timeslot Average SENSe TIMing EXCLude STARt and STOP The query yields 1 for POWer AVG 2...

Страница 65: ...ntly reduced With smoothing deactivated 300 to 3000 periods are required to obtain the same effect With smoothing deactivated the sampling values are considered equivalent and averaged in a sampling w...

Страница 66: ...the length of a timeslot for the Timeslot Average mode in s The query yields the length of a timeslot for the Timeslot Average mode Default setting 0 001 s SENSe RANGe 0 to 2 SENSe RANGe selects the...

Страница 67: ...reduced at the lower limits of the transition ranges The query yields the offset of transition ranges between measurement channels 1 and 2 or 2 and 3 Default setting 0 0 dB SENSe SAMPling FREQ1 FREQ2...

Страница 68: ...ys taken into account when the s parameter correction is activated independent of the gamma correction in connection with the DUT Fig 6 3 Correction of interactions between the power sensor the DUT an...

Страница 69: ...query yields the exclusion time at the start of the measurement window Default setting 0 0 s SENSe TIMing EXCLude STOP 0 0 to 0 003 SENSe TIMing EXClude STOP defines an exclusion time at the end of a...

Страница 70: ...ith chopper stabilization i e the number of recorded sampling sequences is twice as large as the averaging factor alternating measurements with reversed and non reversed polarity The result is that tw...

Страница 71: ...2 5 Ss However the prerequisite for this is that realtime processing is deactivated setting SENSe TRACe REALtime OFF so that more than one sampling sequence can be recorded By offsetting the sampling...

Страница 72: ...ode so that single events can also be recorded in this setting Only one sampling sequence per measurement is recorded Since the averaging filter of the sensor is not used the settings made with SENSe...

Страница 73: ...uery MINPower W Query only RUTime 0 0 to 10 0 s SUTime 0 0 to 10 0 s TRANsaction BEGIN No query END No query SYSTem INFO Item SYSTem INFO yields a string containing information that is more detailed t...

Страница 74: ...r test limit in W The nominal upper test limit of the R S NRP Z28 Z98 is 100 mW i e with s parameter correction deactivated the sensor returns the information string 0 1 as a response to SYSTem INFo M...

Страница 75: ...he result display near the lower test limit SYSTem RUTime 0 0 to 10 0 This command is used to limit the output rate of measurements with continuous output of measurement results setting INITiate CONTi...

Страница 76: ...t message would not come until the transition to the IDLE state following the completion of the measurement Default setting 0 0001 s SYSTem TRANsaction BEGin SYSTEM TRANsaction BEGin marks the beginni...

Страница 77: ...r TEST SENSor triggers a selftest of the sensor In contrast to TST this command yields detailed information which is useful for troubleshooting No signal may be applied to the sensor while the selftes...

Страница 78: ...CONTinuous ON the IDLE state is immediately exited and the sensor enters the WAIT_FOR_TRIGGER state INITiate CONTinuous OFF ON INITiate CONTinuous ON activates the continuous measurement mode In this...

Страница 79: ...300 ms have elapsed after the start of measurement and no trigger event has been recorded The command is only evaluated in the Trace mode and irrespective of the set averaging factor only one trace w...

Страница 80: ...ent mode is selected the full 5 ms become immediately available again When switching back to the Trace mode the trigger delay that has been set is retained and if there is a conflict the start of reco...

Страница 81: ...pective of the set averaging factor TRIGger LEVel x to y TRIGger LEVel sets the trigger threshold for internal triggering derived from the test signal in W This setting is irrelevant to all other trig...

Страница 82: ...ve 2 for NEGative Default setting POSitive TRIGger SOURce HOLD IMMediate INTernal BUS EXTernal TRIGger SOURce sets the trigger source HOLD Triggering only with command TRIGger IMMediate IMMediate Auto...

Страница 83: ...ibration ZERO AUTO OFF ON ONCE OFF fixed 6 5 SENSe Commands SENSe AVERage COUNt 1 to 65536 4 6 8 SENSe AVERage COUNt AUTO OFF ON ONCE ON 6 8 SENSe AVERage COUNt AUTO MTIMe 0 01 to 999 99 s 4 0 6 8 SEN...

Страница 84: ...FF ON OFF 6 15 SENSe POWer AVG SMOothing STATe OFF ON OFF 6 15 SENSe POWer BURSt DTOLerance 0 0 to 0 003 s 0 0001 6 15 SENSe POWer TSLot AVG COUNt 1 to 128 8 6 16 SENSe POWer TSLot AVG WIDTh 10 0e 6 t...

Страница 85: ...0 0 6 21 SENSe TRACe POINts 1 to 1024 100 6 22 SENSe TRACe REALtime OFF ON OFF 6 22 SENSe TRACe TIME 0 0001 to 0 3 s 0 01 6 22 SYSTem Commands SYSTem INFO Item 6 23 SYSTem INITialize 6 25 SYSTem MINPo...

Страница 86: ...6 29 TRIGger ATRigger STATe OFF ON OFF 6 29 TRIGger COUNt 1 to 231 1 6 29 TRIGger DELay x to 100 0 s 0 0 6 30 TRIGger DELay AUTO OFF ON OFF 6 30 TRIGger HOLDoff 0 0 to 10 0 s 0 0 6 31 TRIGger HYSTeres...

Страница 87: ...do not have the original packaging use similar materials that provide the same level of protection Securing When moving the product in a vehicle or using transporting equipment make sure that the pro...

Страница 88: ......

Страница 89: ...in mind that the casing is not waterproof If you use isopropyl alcohol or ethanol instead of water be careful not to damage the labeling Do not use cleaning agents that can damage the instrument such...

Страница 90: ...n disposal via the municipal collection points for waste electrical and electronic equipment is not permitted Labeling in line with EU directive WEEE Rohde Schwarz has developed a disposal concept for...

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