Rohde & Schwarz ZPV User manual

ROHDE &SCHWARZ
MGNCHEN
Manual
VECTOR ANALYZER
ZPV
291 .4012.92
R35054 -1

f
c

Table of Contents
Characteristics
Uses
Description
Specifications
Equipment Supplied
Recommended Extras
2j_
2.1
2.2
2.2.1
2.2.2
2.2.3
2.2.4
2.3
2.3.1
2.3.1.1
2.3. 1.2
2.3. 1.3
2.3.2
2.3.2.1
2.3.2.
2
2.3.2.
3
2.3.3
2.3.3.
1
2.3.3»2
2.
3-
3.
3
2.3.3.
4
2.3.4
2.3. 4.1
2.3-
4.2
2.3. 4.3
2.3.5
2.3.6
2.3.7
Preparation forUse and Operating Instructions
Legend for Figure 2-1
Preparation for Use
Exchanging the Plug-in ***
Adjusting to the Local AC Supply
Setting up *
Switching on
Operating Instructions
General **
Basic Settings
Changing the Mode of Operation
Electronic Locking of Pushbuttons
Vector Measurement *
Voltage Measurement in Channel A
Voltage Measurement in Channel B
Measurement of the Voltage Ratio of Channel Bto Channel A
Parameter Measurement *
Reflection Factor Measurement ***
Impedance Measurement *
Admittance Measurement ** * *
Transmission Measurement
Group Delay Measurement
Single Measurement
Continuous Measurement
Measurement of Group Delay Difference
Indication of Reference Value *
Stabilization of Test Results *
Disconnecting the Autoranging Facilities *•
5
5
9
9
9
9
9
10
10
10
10
10
11
11
11
11
12
12
13
13
13
14
14
15
15
16
16
16
R35054 -3

2. 3. 7.1
2. 3. 7.
2
2.3.8
2.3.9
2. 3.9.1
2. 3. 9.
2
2. 3.9.
5
2. 3.9.4
2.4
2.4.1
2.4.2
2.4.3
2.4.4
2.4.5
2.4.6
2.4.7
2.4.8
2.4«8«1
2,4.8.
2
2.4.8.
3
2. 4.8.
4
2.4.8.5
2. 4. 8.
6
2.4.8.
7
2. 4. 8.
8
2. 4. 8.9
2.4.9
2.4.9.
1
2. 4. 9.2
2.4.9.
3
2. 4. 9.
4
2. 4. 9.
5
2. 4. 9.
6
2.4« 9«
7
2.4•9.
8
2.5
2.5.1
2.5.2
Disconnecting the Amplitude Autoranging Facility 16
Disconnecting the Frequency Autoranging Facility ......... 16
Quasi-analog Indication 16
Analog Voltage Outputs *17
IF/1VOutputs 17
SWEEP/1VOutputs 17
EEC. /I VOutputs 17
FCONTE. Output 17
Remote Control 1®
General 1®
Switchover to Local, Remote or Combined. Operation 13
Setting the Device Address 18
Setting the Last Character 18
Disconnecting the Service Request. 19
Programming Commands 19
Internal/External Trigger Operation 19
Data Output 19
Output of Lef thand Readout (j) 19
Output of the Eighthand. Readout (.12.) ..................... 20
Output of Lefthand. and Righthand Readouts (']_ and 1j2) ..... 20
Output of Measurement Range of Channel A20
Output of Measurement Range of Channel B21
Output of Frequency Range of Plug-in 21
Output of DC Voltage at ADC Input 21
Output of Device Status Word 21
Output of Status Byte with Serial Polling 22
Programming Examples for Desktop Calculator TEK 4051 ..... 22
Programming of Device Setting 22
Programming of Frequency Range 22
Reading out aComplete Test Result 23
Transfer of Device Status Word ?3
Service Request (SRQ) when using the ZPV +TEK 4051/52 ... 24
Increasing the Test Rate in Programmed Operation 24
Input and. Output of Reference Value for
Relative Measurements 25
Phase Offset •*25
Measurement of Crys tal Equivalent Circuit Parameters ..... 2J
General 2/
Manual Measurement 28
R38535 -4

2.5.2. 1Vector Measurement •
2. 5.2.2 Measurement Using the S-parameter Option ZPV-B2 28
2.5.5 Automatic Measurement 29
2.5*4 Control Amplifier 50
2. 5.4.1 Hints for the Adjustment of the Potentiometers Pi and P2 31
5.Maintenance and Repair *•52
5.1 Required Measuring Equipment and Accessories 52
5.2 Checking the Rated Specifications 35
5.2.1 Indication Error of Magnitude Range 33
5.2.2 Crosstalk Attenuation 34
5.2.3 Error of Phase Indication 54
3.2.4 llarrowhand Sweeping *55
5.2.5 Basic Setting for Switching on AC Supply 36
3.2.6 Control of Analog Section 36
5.2.7 Operating and Indicating Elements 36
3.2.8 Calculator Routines 37
4. Circuit Description 58
4.1 Analog Section 38
4.1.1 Amplitude Measurement -•38
4.1.2 Phase Measurement •**41
4.1 .3 Narrowband Sweeping 44
4.1 .4 Power Supply *•*46
4.2 Digital Section ••* • 47
4.2.1 Computer Board Y21 48
4.2.2 Memory Board Y32 50
4.2.3 Front Panel Y1 *50
4.2.4 .D/A Converter Y32 52
4.2.5 I.EC Interface (Option ZPV-B1 )*52
J5. Repair Instructions 55
5.1 Required, Measuring Equipment and Accessories 55
5.2 Adjustments 56
5.2.1 Power Supply ***56
5.2.2 IF-Section, Amplitude Measurement Branch 57
5.2.3 Phase Measurement Branch 58
5. 2. 3.1 Phase Indication 59
5.2.4 Narrowband Sweeping 60
R38535 -4.1

5.2.5 .Digital Filter °1
5.3 Trouble Shooting in the Digital Section 62
5.3.1 General 62
5.3.2 Signature Analysis **•••63
5. 3. 2.1 Checking the ROM Content and the Address and Data Busses 64
5.
3
*2.1.
2
Preparation *^4
5. 3*2. 1.3 Checking the Total ROM Content 65
5. 3. 2. 1.4 Trouble-shooting in the ROM Range 65
5. 3. 2.
2
Checking the Entire Digital Section 65
5.3*2. 2.1 Purpose 65
5. 3. 2. 2.
2
Preparation ^5
5. 3. 2. 2.
3
Trouble-shooting in the Digital Section 66
Parts Lists
Circuit Diagrams
Components Plans
R38535 -4.2

2. Preparation for Use and Ope>ratingInstructions
2.1 Legend for Figure 2-1
LOCAL
cor©.
REMOVE
AMPL.
STOP AUTORANGING
AMPL.
STOP AUTORANGING
FREQ.
STOP AUTORANGING
FREQ.
STOP AUTORANGING
LEVEL
REP. STORE
PARAM. CAL.
f,XREF. STORE
Function
Plug-in for ZPV
Slide switch for selecting the local,
remote or combined local plus remote
control mode.
Pushbutton for switching on and off the
amplitude autoranging facility.
Status indication of amplitude
autoranging facility; lights up if
amplitude autoranging is switched off.
Pushbutton for switching on and off the
frequency autoranging facility.
Status indication of frequency
autoranging facility; lights up if
frequency autoranging is switched off.
Digital readout for one component of the
test result.
Quasi-analog tendency indication for one
component of the test result by an IED line.
Pushbutton for storing the voltage
reference value.
Pushbutton for storing a. voltage and
phase reference value for vector mea-
surements and when calibrating the test
setup for parameter measurements.
Pushbutton for storing aphase or
group-delay reference value (depending
on the mode selected)
.
Digital readout for one component of the
test result.
Quasi -analog tendency indication for one
component of the test result by an .LED line.
Status indication of polar coordinate
display; lights up if this mode is
selected.

No Engraving Function
15 r,f Pushbutton for selecting polar coordinate
display.
X, YStatus indication of Cartesian coordinate
display; lights up if this mode is
selected.
il X, YPushbutton for selecting Cartesian
coordinate display.
18 ojnji.1 Power switch
12 RECALL
REF. On/off button for displaying the
reference values in readouts 7and 12;
lights up in the ON state.
20 FILTER On/off button for stabilizing the test
results with the aid of an electronic
filter; lights up if the filter is
switched in.
21 LIN. Luminous button for selecting linear
display of test results.
22 LIN. /REF.
(vsm) Luminous button for selecting linear
display in relation to areference value
(also VSWR in conjunction with 32).
22 LOG. Luminous button for selecting logarithmic
display of test results.
24 LOG.
REF. Luminous button for selecting logarithmic
display in relation to areference value.
25 BLuminous button for selecting voltage
measxirement in channel Band measure-
ment of the phase angle between channel A
and channel B.
26ALuminous button for selecting voltage
measurement in channel Aand measurement
of the phase angle between channel Aand
channel B.
27 B/A Luminous button for selecting ratio
measurement of voltage in channel B
referred to voltage in channel Aplus
measurement of phase angle between
channel Aand channel B.
28 YLuminous button for selecting
admittance measurement.
R35054 -6
i

No. Engraving
50 ft o
75 n&
22
31 DIR. COUPL.
22 Sll, S22
S21, S12
2iL r
CAL.
36 at
21 ISET
f+40 kHz
o
Function
Luminous button for entering the
characteristic impedance of the
test system:
Cn «75 ft
Out =50 ft
Luminous button for selecting
impedance measurement.
Luminous button for entering
information on test setup used:
On =test setup with directional
coupler or VSWR bridge
Out =test setup without directional
coupler or VSWR bridge
Luminous button for selecting mea-
surement of sparameters s^j or Sgg
(reflection factors).
Luminous button for selecting mea-
surement of sparameters or s^
(transmission factors).
Luminous button for selecting group
delay measurement.
Luminous button for selecting fre-
quency deviation adjustment for
automatic group delay measurement;
lights up during the adjustment
procedure.
Luminous button for selecting mea-
surement of group delay deviation from
areference group delay value.
Luminous button for entering the fre-
quency deviation of 40 kHz*
28 AUTO
ho SET f
Luminous button for selecting automatic
group delay measurement with genera-
tor deviation control.
Luminous button for entering the fre-
quency deviation of 4kHz*
Luminous button for entering the test
start in the case of manual two-point
measurement
.
R26757 -7

No.
41
42
is
Engraving
SET
f+0.4 kHz
(J) 47 -420 Hz
220 VT0.65 B235 V
Function
Luminous button for entering the fre-
quency deviation of 0, 4kHz.
AC supply connector
Voltage selector plus fuse holder.
44
45
46
47
115 VT1.25 B1.25 V
AIF/1 V
BIF/1 V
rSWEEP/1 V
Air fiIter of blower.
IF output of channel A.
IF output of channel B.
Recorder output for the magnitude with
narrowband sweeping.
48 fSWEEP/1 V
4g r, XREC./.1 V
50 f,, YREC./l V
51 C0NTR. AF
52
a
ADC/10 V
IEC BUS
Recorder output for the phase with
narrowband sweeping.
Recorder output for the magnitude or
real component.
Recorder output for the phase or
imaginary component
.
Recorder output for deviation control
in the case of automatic group delay
measurement.
DC voltage test input.
IEC bus connector* (24 poles, Amphenol).
R56737 -8