Rohde & Schwarz URV5-Z1 User manual

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ROHDE&SCHWARZ
Measuring
lns’grurnents
and
Systems
Dwusron
Manual
DC Probe URV5-Z1
395.0512.02
RF
Probe
URV5-Z7
395.261
5.02/.03
10-V Insertion Unit URV5-22
395.1
O1
9.04/.55/.56
100-V
Insertion
Unit
URV5-Z4
395.1 619.04/.55/.56/.76
Printed
in
the
Federal
Republic
of
Germany
395.0512»:
1
5.1
n`bı-ıosascı-ıwAnz
Measuring
Instruments
and
Systems
Division
Manual
DC Probe URV5-21
395.0S12.02
RF Probe URV5-Z7
395.2615.02/.03
10-V Insertion Unit URV5-Z2
395.1019.04 55 56
/. /.
100-V Insertion Unit URV5-Z4
395.1619.04/.55/.56/.76
Prınted inthe Federal
Republic of Germany
395.0512.02
1
E- 1

Table
of
Contents
Data
sheet
Notes
onojeration
I0......OOCOCOOCUOCOOOOOOOOOOOUC
Probes
0.0.0..0......OOOOOOOOCOCCOOOOOOIOOOO0......
mprObe
OOOOOOOOOOOOOOOOOOOOIOO0.000000IOOOOOOOOOO
AC
Probes
........................................
General Remarks on RF Measurements and RF Probes .
RF
Probe
...........................
RF
Insertion
Units
................
Impedance
Values
(RCL
INP
Key)
...................
PEAK
(PEP)
Key
...................................
o
o o o o
I
o
o o o o
o
o
o
o o o
NNNNfl
o
a
o
bin-i
N
NNNNNN
N
w
wwwwww
0‘
NNNNNN
w
Maintenance
RF
Probe
Required
Checking
"RVs-Z7
000000000000000000000000000000000
Measuring
Equipment
and
Accessories
.....
the
Rated
Specification
.................
Checking
the
Linearity
...........................
Checking
the
Input
Capacitance
...................
Performance
Test
Report
..........................
000000
.0
N...
wNNN—I
10-V
Insertion
Unit
50
Q
URVS-Zz
ooooooooaoooooooo
Required
Measuring
Equipment
and
Accessories
.....
Checking
the
Rated
Specifications
................
Checking
the
Linearity
...............i...........
Checking
the
Reflection
Coefficient
..............
Performance
Test
Report
..........................
bubb-bb-b
wwwwww
NNNNNN
100-V Insertion Unit 50 n URV5—24 ................
Required Measuring Equipment and Accessories .....
Checking the Rated Specifications ................
Checking the Linearity ...........................
Checking
the
Reflection
Coefficient
..............
Performance Test Report ..........................
wwwwww
wwuwwu
wwwwww
100-V
Insertion
Unit
75
n
URVS—Z4
................
Required
Measuring
Equipment
and
Accessories
.....
Checking
the
Rated
Specifications
................
Checking
the
Linearity
...........................
Checking
the
Reflection
Coefficient
..............
Performance
Test
Report
wwuwuw
U‘U‘U‘U‘U‘U‘
O
o
O
on
so
N—l
WNNN-i
395.0512.02
Page
2.1
2.9
2.9
2.11
2.11
2.13
2.16
2.25
2.26
3.13
3.13
3.13
3.13
3.14
3.15
3.16
3.16
3.16
3.16
3.17
3.18
3.19
3.19
3.20
3.20
3.21
3.22
3.23
3.23
3.24
3.24
3.25
3.26
Table of
Contents
Page
1
Data sheets
2
Notes on Operation
................................ 2.1
2.3.2 Probes ............................................
2.3.2.1 DC Probe ooıoooııoooıııoooıooooooooooıooıoıooooıooı
2.3.2.2 AC Probes ooooıooooıoıooıoooooıooııoıooooooıııooı0
2.3.2.2.1 General Remarks on RF Measurements and RF Probes
.
2.3.2.2.2 RF Probe
ggg....Q...Q.QQQQQQOQQQQQQQQQQQOOOQQQQ..
2.3.2.2.3 RF
Insertion Units ...............................
Impedance Values (RCL INP Key) ...................
2.3.6 PBAK (PEP) Key 00000000000000000ıoooooooıoooooooıo
2.9
2.9
2.11
2.11
2.13
2.16
2.25
2.26
1
2
1
2
1
2
1
2
. .1
• .2
• .2
• .2
• .3
• .1
• .2
• .2
• .2
• .3
• .1
• .2
• .2
• .2
• .3
• .1
• .2
• .2
• .2
• .3
2
2
2
2
2
2
3
3
3
3
3
3
4
4
4
4
4
4
s
s
5
5
$
5
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3.13
3.13
3.13
3.13
3.14
3.15
RF Probe URVS-Z7
ıooıoıoııııooıııııoıooooooıııoıoo
Required measuring Equipment and Accessories
.....
Checking the Rated Specification
.................
Checking the Linearity
...........................
Checking the Input Capacitance
...................
Performance Test Report
..........................
3.16
100-V Insertion Unit so Q URV5-24 ooıooooooıoııooo 3.19
Required measuring Equipment and Accessories ..... 3.19
Checking the Rated Specifications ................ 3.20
Checking the Linearity 0000
ııoııoooooooooooıoııoıo 3.20
Checking the Reflection coefficient .............. 3.21
Performance Test Report
.......................... 3.22
Maintenance
10-V Insertion Unit S0 n URVS-Z2
oooooooooooıoıooı 3.16
Required measuring Equipment and Accessories .....
3.16
Checking the Rated Specifications
................ 3.16
Checking the Linearity ...............'....„......
Checking the Reflection Coefficient .............. 3.17
Performance Test Report .......................... 3.18
100-V Insertion Unit 75 n uRv5-z4
................ 3.23
Required Measuring Equipment and Accessories
..... 3.23
checking the Rated Specifications
................ 3.24
Checking the Linearity
ooooooooooooıooıoooııııggg. 3.24
Checking the Reflection Coefficient
.............. 3.25
Performance Test Report
.......................... 3.26
39S.0S12.02
3
E-1

Seite
3.6
DCPrObEURV5‘21.oo...............o..............
3.27
3.6.1
Required
Measuring
Equipment
and
Accessories
.....
3.27
3.6.2
.Checking
the
Rated
Specifications
................
3.27
3.6.2.1 Checking the Measurement Accuracy ................ 3.27
3.6.3 Performance Test Report .......................... 3.28
3.7 Checking the Frequency Response of RP Probes ..... 3.29
3.8
Test
Setup
for
Measurement
of
Reflection
Coefficient ...................................... 3.30
4.1.5
Measuring
Heads
..................................
4.7
4.1.5.1
RP
PrObe
URV5'27
.................................
4.8
4.1.5.1.1
20-/40-dB
DiViderS
......o........................
4.8
4.1.5.1.2
50-/75-“
Adapters
................................
438
4.1.5.2
10-V
Insertion
Unit
URVS-ZZ
......................
4.8
4.1.5.3
100-V
Insertion
Units
URVS-z4
....................
4.8
4.1.5.4
DC
PrObe
URVS'Z1
.............................0...
4.8
List
of
mechanical
parts,
Figures
pertaining
to
list
of
mechanical
parts,
Parts
lists,
Circuit
diagrams,
Components
plans
in
Appendix
395.05.12.02
4
3-1
Seite
1
• • 1
. .2
• • 2
• • 3
6
6
6
6
6
7
8
3
3
3
3
3
3
3
roe - ooooooooıoooıooıoooQQQooooooooooo
Required Measuring Equipment and Accessories .....
Checking the Rated Specifications ................
checking the Measurement Accuracy ................
ıooooooıoooooıoooıoooıoooo
Checking the Frequency Response of RF Probes ..... 3.29
Reflection
3.30
3.27
3.27
3.27
3.27
3.28
Test Setup for Measurement of
0ıooooooıoooooııooooooooooıoıııııoooıo
4.1.5
Measuring Heads ..................................
4.1.5.1 RF probe URV5-Z7
.................................
4.1.5.1.1 20-/40-dB Dividers oıooıoooıoıoooooooıoooooıoooııo
4.1.5.1.2 50-/75-Q Adapters
................................
4.1.5.2 10-V Insertion Unit URV5-Z2
oooooooıooıoooıoooııoı
4.1.5.3 100-V Insertion Units URV5-Z4
oıııooøıooıoııoııooo
.1.5. DC probe URV5-Z1 0000000000ııoıøoøøoııøoııoııooııo
4 4
4.7
4.8
4.8
4.8
4.8
4.8
4.8
List of mechanical parts,
Figures pertaining to list of
mechanical parts,
Parts lists,
Circuit diagrams,
Components plans
in Appendix
39s.0s12.02
4
B-1

Data sheet
The voltage sensors of the ¸URV5-Z
series are indispensable tools in RF and
microwave laboratories, test departments
and service. They cover a frequency
range from 9 kHz to 3 GHz and thus close
the gap between low-frequency voltage
measurements and microwave power
measurements.
Consequently they may be used for the
following measurements:
◆High-impedance DC and AC voltage
measurements in non-coaxial circuits
◆Level measurements in 50 :lines
◆Terminated power measurements
Voltage sensors are the right tools for
everyday use. They permit the measure-
ment of voltages from 200 ΠV to 1000 V
and of powers from 1 nW (#60 dBm) up to
200 W ($53 dBm).
Voltage Sensors ¸URV5-Z
Universal voltage measurements from RF to microwaves
Version
05.00
May
2005
Data
sheet
Version
05.00
Voltage Sensors R&S®URV5-Z
Universal voltage measurements from RF to microwaves
The voltage sensors of the R&S®URV5-Z
series are indispensable tools in RF and
microwave laboratories, test departments
and service. They cover a frequency
range from 9 kHzto 3 GHz and thus close
the gap between low-frequency voltage
measurements and microwave power
measurements.
Consequently they may be used for the
following measurements:
6 High-impedance DC and AC voltage
measurements in non-coaxial circuits
6 Level measurements in 50 Q lines
6 Terminated power measurements
Voltage sensors are the right tools for
everyday use. They permit the measure-
ment of voltages from 200 uV to 1000 V
and ofpowers from 1 nW (—60 dBm) upto
200 W (+53 dBm).
ROHDE&SCHWARZ
ROHDE&SCHWARZ

2Voltage Sensors ¸URV5-Z
Waveform weighting
All ¸URV5-Z AC sensors are cali-
brated so that the rms value is indicated
for a sinewave voltage. With other wave-
forms, e.g. squarewaves, the peak value
is decisive for the type of weighting
employed. Below about 30 mV, the RF
probe and the 10 V insertion unit mea-
sure rms values. Above 1 V, the peak-to-
peak value Vpp is measured and Vpp/(2%2)
is indicated, which corresponds to the
rms value of a sinewave voltage.
Between 30 mV and 1 V the type of
weighting is determined by the wave-
form.
The measurement of modulated sine-
wave voltages follows a pattern similar to
that of non-sinusoidal waveforms. Up to a
peak value of 30 mV at the envelope´s
maximum (corresponding to 10 ΠW PEP
in 50 :systems), the true rms value is
measured. With power indication in W or
dBm, the average power is displayed.
Above 1 V (10 mW PEP) and with a mod-
ulation frequency of at least 10 kHz, the
peak value is measured again. In the case
of power measurements, the peak enve-
lope power PEP is indicated without any
calculations being required, and for volt-
ages the value VPP/(2%2).
Limit values specified for the 100 V
Insertion Unit ¸URV5-Z4 are 20 dB
higher than for the 10 V insertion unit, i.e.
by a factor of 10 for voltages and by a fac-
tor of 100 for power levels. When a plug-
on divider is used with the RF probe, limit
values are to be increased by the amount
of the preceding attenuation.
Sensors
¸URV5-Z7 RF Probe
0395.2615.02 200 µV to 10 (1000) V, 20 kHz to 1 GHz
¸URV-Z6 Accessory Set
0292.5364.02 20/40 dB plug-on dividers and 50 :BNC adapter for RF probe
¸URV-Z50 50 :Adapter
0394.9816.50 for power measurements with RF probe at 50 :sources
¸URV-Z3 75 :Adapter
0243.9118.70 for power measurements with RF probe at 75 :sources
¸URV5-Z1 DC Probe
0395.0512.02 1 mV to 400 V
¸URV5-Z2 Insertion Unit 50 :
0395.1019.02/05 200 µV to 10 V, 9 kHz to 3 GHz
¸URV5-Z4 Insertion Unit 50 :
0395.1619.02/05 2 mV to 100 V, 100 kHz to 3 GHz
Measurement accuracy
Voltage sensors and measuring devices
have a long tradition in RF measurements
but for a long time they were not con-
sidered very accurate. Since 1989,
Rohde&Schwarz has set standards with
its voltage sensors: state-of-the-art zero-
bias Schottky diodes ensuring highly sta-
ble, reproducible measurements. Instead
of using analog methods for linearization
and compensating temperature errors of
the rectifier in the sensors, correction val-
ues are calculated. Each sensor has a
built-in calibration data memory which
holds all individual parameters to be
taken into account by the meter.
This numerical correction offers high
accuracy over the entire dynamic range
of >90 dB and at the same time simplifies
operation: the meter identifies the type of
sensor connected and automatically
adapts to it. When a test frequency is
entered by the user, the frequency
response determined during calibration
may be selected for increasing the mea-
surement accuracy.
The Level Meter ¸URV35 with the Insertion
Unit ¸URV5-Z2 in mobile use
Low-load voltage measurement with the RF Probe
¸URV5-Z7
General
General
.T_-.,r';_r'-,Ia'.':r".'
-
:.
_
.
‚.-
-'
.'.'. '
.
1"" _
low-load voltage measurement with the RF Prohe
R850 UH V5 -Z7
Sensors
R&S°URV5-Z7 RF Probe
0395.2615.02 200 pV to 10 (1000) V, 20 kHz to 1 GHz
R&S®URV-Z6 Accessory Set
0292.5364.02 20/40 dB plug—on dividers and 50 Q BNC adapter for RF probe
R&S°URV-Z50 50 Q Adapter
0394.9816.50 for power measurements with HF probe at 50 Q sources
R&S°URV-Z3 75 Q Adapter
0243.9118.70 for power measurements with HF probe at 75 Q sources
R&S®URV5-Z1 DC Probe
0395.0512.02 1 mV to 400 V
R&S®URV5-ZZ Insertion Unit 50 Q
0395.1019.02/05 200 pV to 10 V, 9 kHz to 3 GHz
R&S°UBV5-Z4 Insertion Unit 50 Q
0395.1619.02/05 2 mV to 100 V, 100 kHz to 3 GHz
Measurement accuracy Waveform weighting
Voltage sensors and measuring devices
have a long tradition in RF measurements
but for a long time they were not con-
sidered very accurate. Since 1989,
Bohde&Schwarz has set standards with
its voltage sensors: state-of-the-art zero-
bias Schottky diodes ensuring highly sta-
ble, reproducible measurements. Instead
of using analog methods for linearization
and compensating temperature errors of
the rectifier in the sensors, correction val-
ues are calculated. Each sensor has a
built-in calibration data memory which
holds all individual parameters to be
taken into account by the meter.
This numerical correction offers high
accuracy over the entire dynamic range
of >90 dB and atthe same time simplifies
operation: the meter identifies the type of
sensor connected and automatically
adapts to it. When a test frequency is
entered by the user, the frequency
response determined during calibration
may be selected for increasing the mea-
surement accuracy.
2 Voltage Sensors nsssunvs-z
All R&S®URV5-Z AC sensors are cali-
brated so that the rms value is indicated
fora sinewave voltage. With other wave-
forms, e.g. squarewaves, the peak value
is decisive for the type of weighting
employed. Below about 30 mV, the BF
probe and the 10 V insertion unit mea-
sure rms values. Above 1 V, the peak-to-
peakvalue Vpp is measured and Vim/(2‘12)
is indicated, which corresponds to the
rms value of a sinewave voltage.
Between 30 mV and 1 V the type of
weighting is determined by the wave-
form.
The measurement of modulated sine-
wave voltages follows a pattern similar to
that of non-sinusoidal waveforms. Upto a
peak value of 30 mV at the envelope's
maximum (corresponding to 10 pW PEP
in 50 Q systems), the true rms value is
measured. With power indication in W or
dBm, the average power is displayed.
Above 1 V (10 mW PEP) and with a mod-
ulation frequency of at least 10 kHz, the
peak value is measured again. In the case
of power measurements, the peak enve-
lope power PEP is indicated without any
calculations being required, and for volt-
ages the value VPP/(NZ).
Limit values specified for the 100 V
Insertion Unit B&S®UBV5-Z4 are 20 dB
higherthan forthe 10 V insertion unit, i.e.
by a factor of 10 for voltages and by a fac-
tor of 100 for power levels. When a plug-
on divider is used with the RF probe, limit
values are to be increased by the amount
of the preceding attenuation.
The level Meter H&S® UHI/35 with the Insertion
Unit R&S® UHV5—ZZ in mobile use

Voltage Sensors ¸URV5-Z 3
Four types of meters are available for volt-
age and power measurements.
Meters
¸URV35
compact voltmeter and power meter for
use in service, testshops and labs. unique
combination of analog and digital display
in the form of moving-coil meter plus LCD.
Many measurement functions, display in
all standard units, choice of battery or AC
supply operation, RS-232-C interface. All
sensors are suitable.
¸URV55
Attractively priced, single-channel volt-
meter. Many measurement functions,
display of results in all standard units,
analog output comes as standard,
IEC/IEEE bus connector. All sensors are
suitable.
¸NRVD
Modern dual-channel power meter with
menu operation and IEC/IEEE bus con-
nector (SCPI). Ideal for relative measure-
ments in two test channels (attenuation,
reflection). Large variety of measurement
functions, display of results in all stan-
dard units. Many extras like 1 mW test
generator, indication of measurement
uncertainty, etc. All sensors are suitable.
¸NRVS
Attractively priced, single-channel power
meter, similar to the ¸URV 55. All
sensors are suitable.
Fourtypes of meters are available for volt-
age and power measurements.
Meters
R&S®URV35
compact voltmeter and power meter for
use in service, testshops and labs. unique
combination of analog and digital display
in theform of moving-coil meter plus LCD.
Many measurement functions, display in
all standard units, choice of battery orAC
supply operation, RS-232-C interface. All
sensors are suitable.
R&S®URV55
Attractively priced, single-channel volt-
meter. Many measurement functions,
display of results in all standard units,
analog output comes as standard,
lEC/IEEE bus connector. All sensors are
suitable.
R&S®NRVD
Modern dual-channel power meter with
menu operation and lEC/IEEE bus con-
nector (SCPI). Ideal for relative measure-
ments in two test channels (attenuation,
reflection). Large variety of measurement
functions, display of results in all stan-
dard units. Many extras like 1 mW test
generator, indication of measurement
uncertainty, etc. All sensors are suitable.
R&S®NRVS
Attractively priced, single-channel power
meter, similar to the R&S®URV 55. All
sensors are suitable.
'.' “m ll'ulll HI"? III'I'II:
mm.“ mu
I:- “I“! PL'MIUI Hrll'l hlrl
Voltage Sensors R&S°URV5—Z

4Voltage Sensors ¸URV5-Z
Frequency response
1.5
1
0.5
0
dB
10 100 200 300 400 500MHz
Frequency
abc
SWR
1.2
1.1
1
10 100 200 300 400 500MHz
Frequency
ab
c
RF Probe ¸URV5-Z7
The RF probe is a universal tool for mea-
suring RF voltages. The low input capaci-
tance of 2.5 pF makes it virtually non-
loaded and ideally suitable for measure-
ments on non-coaxial circuits up to
500 MHz or up to 1 GHz when appropriate
accessories are used. A plug-on divider
extends the voltage measurement range
from 10 V to 1000 V and at the same time
reduces the input capacitance to 0.5 pF.
Compared to active, high-impedance
probes, the dynamic range of the
¸URV5-Z7 is greater by a factor of 10
to 100, i.e. higher voltages can be mea-
sured with the same sensitivity. With a
dynamic range from 200 ΠV to 10 V with-
out the use of a plug-on divider, the probe
covers all voltage levels common in state-
of-the-art electronic equipment.
Typical frequency response of the RF Probe ¸URV5-Z7 with voltage mea-
surements on a matched 50
: line (without adapter, short ground connec-
tion); a) direct, b) with 20 dB plug-on divider, c) with 40 dB plug-on divider
Typical SWR of a matched 50 : line after connecting the RF Probe
¸URV5-Z7 (without adapter, short ground connection);
a) direct, b) with 20 dB plug-on divider, c) with 40 dB plug-on divider
The RF Probe ¸URV5-Z7, 200 µV to 10 (1000) V, 20 kHz to 1 GHz
RF Probe R&S®URV5-Z7
The RF probe is a universal tool for mea-
suring RF voltages. The low input capaci-
tance of 2.5 pF makes it virtually non-
loaded and ideally suitable for measure-
ments on non-coaxial circuits up to
500 MHZ oruptol GHz when appropriate
accessories are used. A plug-on divider
extends the voltage measurement range
from 10 Vto 1000 V and at the same time
reduces the input capacitance to 0.5 pF.
Compared to active, high-impedance
probes, the dynamic range of the
R&S®URV5-Z7 is greater by a factor of 10
to 100, Le. higher voltages can be mea-
sured with the same sensitivity. With a
dynamic range from 200 uV to 10 V with-
out the use ot a plug-on divider, the probe
covers all voltage levels common in state-
of-the-art electronic equipment.
The RFProhe 3&3” UHV5—Z7, 200/1 Vto 10 (1000/ V, 20 kHz to 1 GHZ
—>
n.
e
m
U1
4/
//,/
0 , 4//
10 100 200 300 400 MHZ 500
Frequency
4»
./
/
P
r.n
Frequency
response
Typical frequency response of the BFProhe H880 URI/517 with voltage mea-
surements on a matched 50 .Qline (without adapter, short ground connec-
tion); a) direct, h} with 20 dB plug-on divider, c) with 40 dB plug-on divider
4 Voltage Sensors R&S°’UBV5-Z
/
/°
/
\\
/
///
%/
10 100 200 300 400 MHz 500
Frequency
4»
1
Typical SW]? of a matched 50 Qline after connecting the HF Probe
3&8‘5’ URI/517 {without adapter, short ground connection);
a) direct, h} with 20 dB plug-0n divider, cl with 40 dB plug-on divider
g
/*
ııı

Voltage Sensors ¸URV5-Z 5
Accessories for RF probe
DC Probe ¸URV5-Z1
The low input capacitance of the DC
Probe ¸URV5-Z1 makes it particularly
suitable for measurements in RF circuits.
Since the probe is virtually non-loaded,
the circuit under test remains largely
unaffected. This prevents the operating
point of active circuits from being shifted,
which can occur with high capacitive
loading.
The DC Probe ¸URV5-Z1, 1 mV to 400 V, 3 pF
÷÷ 9 M :
Accessory Set ¸URV-Z6
20 dB and 40 dB plug-on dividers for extending the voltage measurement range and
reducing the input capacitance to 100 V/1 pF or 1000 V/0.5 pF. BNC adapter for level
measurements in 50 :coaxial lines (see also Insertion Units ¸URV5-Z2/-Z4).
Adapters ¸URV-Z50 and ¸URV-Z3
With integrated termination for power measurements on matched sources, the
adapters make the probe a power sensor with an extremely wide dynamic range of
93 dB. For increasing the measurement accuracy with the 50': adapter connected,
frequency response correction data is stored in each probe.
20/40 dB plug-on dividers and BNC adapter
¸URV-Z50: 50 :, 20 kHz to 1 GHz,
1 nW to 2 W
¸URV-Z3: 75 :, 20 kHz to 500 MHz,
0.5 nW to 1.3 W
Accessories for RF probe
Accessory Set R&S®URV-Zö
20 dB and 40 dB plug-on dividers for extending the voltage measurement range and
reducing the input capacitance to 100 V/l pF or 1000 V/0.5 pF. BNC adapter for level
measurements in 50 Q coaxial lines (see also Insertion Units R&S®URV5-ZZ/—Z4).
Adapters R&S®URV-250 and R&S®URV-Z3
With integrated termination for power measurements on matched sources, the
adapters make the probe a power sensor with an extremely wide dynamic range of
93 dB. For increasing the measurement accuracy with the 50 Q adapter connected,
frequency response correction data is stored in each probe.
20
kHz
to
1
6H2,
.
DC Probe R&S®URV5-Z1
The low input capacitance of the DC
Probe R&S® URV5-Z1 makes it particularly
suitable for measurements in RF circuits.
Since the probe is virtually non-loaded,
the circuit under test remains largely
unaffected. This prevents the operating
point
ofactive
circuits
from
being
shifted,
which can occur with high capacitive
loading.
The at: Probe [me uni/MI, 1 m V to 400 V, 3 pr //9 Mg
Voltage sensors nasounvs-z 5

6Voltage Sensors ¸URV5-Z
The built-in detectors offer a dynamic
range of more than 90 dB for spectrally
pure sinusoidal signals with an unmodu-
lated envelope (CW, FM, ΜM, GMSK,
FSK, etc). This yields a voltage measure-
ment range of 200 ΠV to 10 V (#60 dBm
to +33 dBm into 50 :) for the
¸URV5-Z2,andof2mVto100V
(#40 dBm to +53 dBm into 50 :) for the
¸URV5-Z4. With modulated envelope
or high harmonic content, the insertion
units should be operated only within the
square-law region of the detectors, which
for the ¸URV5-Z2 ends at approx.
22 mV
( # 20 dBm into 50 : ) and for the
¸URV5-Z4
at 220 mV (0 dBm into
50 :). In this region, the behavior of the
insertion units is similar to that of a ther-
mal power meter, i.e. the rms voltage or
the equivalent average power is mea-
sured.
Owing to the high decoupling of the
detector from the RF connectors, inser-
tion loss of the ¸URV5-Z4 is very low,
i.e. not exceeding that of a line of equiva-
lent length. The ¸URV5-Z4 is there-
fore truly transparent and can be inserted
into any test circuit without influencing
the parameters to be measured.
Both insertion units are equipped with a
calibration data memory that contains
information about the individual sensor
characteristics such as frequency
response, linearity, temperature coeffi-
cient, etc. The stored data is automati-
cally considered by the base unit during
operation so that the user can plug the
sensor in and immediately start measur-
ing.
Insertion Units ¸URV5-Z2
and ¸URV5-Z4
The Insertion Units ¸URV5-Z2 and
¸URV5-Z4 are used for uninterrupted
level measurements between source and
load and for terminated power measure-
ments. Due to their wide frequency range
they are ideal especially for the measure-
ment of EMC test levels as well as many
general-purpose applications.
Compared to the terminating power sen-
sors of the ¸NRV family, the
¸URV5-Z2 and ¸URV5-Z4 inser-
tion units offer a larger dynamic range, a
much lower frequency limit (9 kHz with
the ¸URV5-Z2) and the possibility of
using them during operation of the load.
Both units are made up of a short, coaxial
line between the two RF connectors, in
the middle of which the voltage is
tapped: directly with the ¸URV5-Z2,
and via a capacitive 20 dB divider with
the ¸URV5-Z4. If the insertion units
are match-terminated, the voltage is con-
stant over the whole length of the line, so
a fixed relationship is obtained between
applied RF power and test voltage:
P =Vrms2/50:. In this configuration, the
insertion units provide precise absolute
power and level measurements.
The insertion units are calibrated so that
the power incident upon them is indi-
cated. With a poorly matched load, pre-
cise absolute-value measurements are
not possible, but relative measurements
can be performed and system applica-
tions implemented in which subsequent
calibration of the complete test setup
takes place. Switchover between voltage,
level and power indication is made at the
base unit.
The Insertion Unit ¸URV5-Z2, 200
Π V to ' 10 V, 9 kHz to ' 3 GHz
The Insertion Unit ¸URV5-Z4, 2
' mV to 100 V, 100 kHz to 3 GHz
Insertion Units R&S ®URV5-Z2
and R&S®URV5—Z4
The Insertion Units R&S®URV5-22 and
R&S® UFlV5-Z4 are used for uninterru pted
level measurements between source and
load and for terminated power measure-
ments. Due to theirwide frequency range
they are ideal especially for the measure-
ment of EMC test levels as well as many
general-purpose applications.
Compared to the terminating power sen-
sors of the R&S®NRV family, the
R&S®URV5-ZZ and R&S®URV5-Z4 inser-
tion units offer a larger dynamic range, a
much lower frequency limit (9 kHz with
the R&S®URV5-Z2) and the possibility of
using them during operation of the load.
Both units are made up ofa short, coaxial
line between the two RF connectors, in
the middle of which the voltage is
tapped: directly with the R&S® URV5-ZZ,
and via a capacitive 20 dB divider with
the R&S®URV5—Z4. If the insertion units
are match-terminated, the voltage is con-
stant overthe whole length of the line, so
a fixed relationship is obtained between
applied RF power and test voltage:
P =V,ms2 / 50 Q. In this configuration, the
insertion units provide precise absolute
power and level measurements.
The insertion units are calibrated so that
the power incident upon them is indi-
cated. With a poorly matched load, pre-
cise absolute-value measurements are
not possible, but relative measurements
can be performed and system applica-
tions implemented in which subsequent
calibration of the complete test setup
takes place. Switchover between voltage,
level and power indication is made at the
base unit.
6 Voltage Sensors R&ssunvs-z
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The Insertion Unit R&S” URI/522, 200 ‚uV to 10 V, 0 kHz to 3 GHz
The Insertion Unit R&S” UHV5—Z4, 2 ta 100 V, 100 kHz to 3 GHz
The built-in detectors offer a dynamic
range of more than 90 dB for spectrally
pure sinusoidal signals with an unmodu-
lated envelope (CW, FM, (pM, GMSK,
FSK, etc). This yields a voltage measure-
ment range of 200 pV to 10 V (—60 dBm
to +33 dBm into 50 Q) for the
R&S®URV5-Z2, and of 2 mV to 100 V
(—40 dBm to +53 dBm into 50 Q) for the
0&8® URV5-Z4. With modulated envelope
or high harmonic content, the insertion
units should be operated only within the
square-law region ofthe detectors, which
for the R&S®URV5-Z2 ends at approx.
22 mV (—20 dBm into 50 Q) and for the
R&S®URV5-Z4 at 220 mV (0 dBm into
50 Q). In this region, the behavior of the
insertion units is similar to that of a ther-
mal power meter, i.e. the rms voltage or
the equivalent average power is mea-
sured.
Owing to the high decoupling of the
detector from the RF connectors, inser-
tion loss ofthe R08® URV5-Z4 is very low,
i.e. not exceeding that of a line of equiva-
lent length. The R&S®URV5-Z4 is there-
fore truly transparent and can be inserted
into any test circuit without influencing
the parameters to be measured.
Both insertion units are equipped with a
calibration data memory that contains
information about the individual sensor
characteristics such as frequency
response, linearity, temperature coeffi-
cient, etc. The stored data is automati-
cally considered by the base unit during
operation so that the user can plug the
sensor in and immediately start measur-
Ing.