AdditionalNRVD-specific features in bold

Measurementfunctions

averagepower,pulse power,peakenvelope power
AM,reflection,DC valtage
(depending on sensor)

Frequency andlevel range

DC to40 GHz,100pW to 30W
9 KHz to 3 GHz,200μV to 1000V
(depending on sensor)

Probes andsensors
Display

all NRVsensorsand URV5 probes LCD for digits,units,menu-guided operationand analog display,adjust-ablebacklighting

Display ofresults

single-channel(withoptional display of correctionfrequency) or dual-channel

Absolutereadout

W,dBm, V,dBμV,dBV

Relativereadout NRV5,URV55

dB,%W or %Vrelative to astored reference value

Relativereadout NRVD

dB,difference,percent and ratio,relafive to astored reference value or to the secondmeasurementchannel;VSWR,reflection coefficient,return loss in dB,AMmodulation depth

Analogdisplay
Digital display and resolution

automaticorwith selectable scale max.4(1/2) digits,resolutionselectable(0.1/0.01/0.001dB)

Displayfiltering

averaging over1to 512 readings to reduce display noise;manual or automatic settingdependingon measurement range and resolution

Displaynoise

see sensorsfrom page 262/266

Measurementrate

see tablebelow

AccuracyofURV55 (without sensor)

18 to28℃
10 to 40℃
0 to50℃

±0.02 dB ±1digit
±0.04 dB ±1 digit
±0.06dB ±1 digit

Accuracy ofpowerreadout

in W (NRVS /D without sensors)

0.4%(0.3%)+1digit(18 to 28℃)
0.9% (0.8%)+1 digit(10 to 40℃)
1.4% (1.3%)+1digit(0 to 50℃)

Zeroadjustment

manualor viaIEC/IEEE bus,duration apprax.4 s

Frequencyresponsecorrection

sensor-specificcalibrationdata taken into account;numericalentry of test frequency(keyboard or via IEC/IEEE bus)or by frequency-proportionalDCvoltage

Attenuationcompensation

externalattenuation or gain taken intoaccount;data entry via keyboard or IEC/IEEE bus,range±200dB

Entry ofreference value

measuredvalueon keystroke or numerical entry via keypad or IEC/IEEEbus

Referenceimpedance

for conversionbetween voltage andpower,automatic readout of reference impedancefrom sensor data memory or numericalentry via keyboard or IEC/IEEEbus(for RF probe)

Remotecontrol

IEC625(IEEE488),SCPI,control of all instrument functions

Interfacefunctions

SH1,AH1,T6,L4,SR1,PL1,DC1,DT1,PP0,PP1

DC frequencyinput

URV55,NRVS
NRVD
Connector
Input voltage range

standard
option NRVD-B2
BNC
±12V, linear with selectable scale

DCoutput

URV 55,NRVS
NRVD
Connector
Left-/right-hand full-scale value
Accuracy
Channels

standard
option NRVD-B2
BNC,R out =1K Ω
EMF proportional analogdisplay
corresponding to 0/+3 V
±5 mV
1,2

Input/OutputOption NRVD-B2

2 simultaneousDC voltage outputs,DC frequencyinput,trigger input(TTL,activelow),ready output(TTL,active high)

Sensor checksource

URV55,NRVS
NRVD
Output power
Frequency
VSWR
RF connector

optionNRVS -B1
standard
1 mW ±0.7%
50 MHz
1.05, ≤ 1.03
N female

Generaldata

Powersupply

115 V +15/-22%(-15%)
47 TO 63(440)Hz;
230V +15/-22%,
47 to 63 Hz,13VA
100/120/220V±10%,
230V-6/+15%;
47to 400 Hz(25 VA)

Dimensions(W×H×D);weight

219mm×103 mm×350 mm;3.2 kg
219 mm×147 mm×350 mm;4.5 kg

Measurementtimein seconds(from trigger to output of (first byte) depending onfilter setting

Resolution

Filternumber