Agilent Technologies 8920B User manual

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Agilent Technologies 8920B Option 800, 801
RF Communications Test Set
Condensed Programming Reference Guide
8290B Firmware Version B.06.00 and above
Agilent Technologies No. 08920-90239
Printed in U. S. A.
April 2000
Rev. B

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Copyright © Agilent Technologies 1999, 2000
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The material contained in this document is subject to change without notice. Agi-
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tained herein or for incidental or consequential damages in connection with the fur-
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applicable in any technical data.
Agilent Technologies
Learning Products Department
24001 E. Mission
Liberty Lake, WA 99019-9599
U.S.A.
Edition/Print Date All Editions and Updates of this manual and their creation dates are listed below.
Rev. A . . . . . October 1999
Rev. B . . . . . April 2000
Product Markings CE - the CE mark is a registered trademark of the European Community. A CE
mark accompanied by a year indicated the year the design was proven.
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ation.

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Agilent Technologies Warranty Statement for Commercial Products
Agilent Technologies 8920A RF Communications Test Set
Duration of
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6Warranty does not apply to defects resulting from (a) improper or inadequate mainte-
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DECLARATION OF CONFORMITY
according to ISO/IEC Guide 22 and EN 45014
Manufacturer’s Name:
Manufacturer’s Address:
declares that the product
Product Name:
Model Number:
Product Options:
Agilent Technologies
24001 E. Mission Avenue
Liberty Lake, Washington 99019-9599
USA
RF Communications Test Set / Cell Site Test Set
AgilentTechnologies8920A,8920B,and8921A
This declaration covers all options of the above
product.
conforms to the following Product specifications:
Safety: IEC 1010-1:1990+A1+A2/EN 61010-1:1993
EMC: CISPR 11:1990 / EN 55011:1991 Group 1, Class A
EN 5 008 2-1 : 1992
IEC 801-2:1991 - 4 kV CD, 8 kV AD
IEC 801-3:1984 - 3V/m
IEC 801-4:1988 - 0.5 kV Sig. Lines, 1 kV Power Lines
Supplementary Information:
This is a class A product. In a domestic environment this product may cause radio interference in
which case the user may be required to take adequate measures.
This product herewith complies with the requirements of the Low Voltage Directive
73/23/EEC and the EMC Directive 89/336/EEC and carries the CD-marking accordingly.
Spokane, Washington USA Date October 17, 1996 Vince Roland/Quality Manager

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Service and
Support Any adjustment, maintenance, or repair of this product must be performed by qual-
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nologies Service Center. You can find a list of local service representatives on the
Web at:
http://www.agilent-tech.com/services/English/index.html
If you do not have access to the Internet, one ofthese centers can direct you to your
nearest representative:
Table 1
United States Test and Measurement Call Center
(Toll free in US) [phone]
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Contents
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1 Remote/Local Modes
Remote/Local Modes 18

Contents
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2 GPIB Command Syntax
GPIB Command Syntax Listings 22
Adjacent Channel Power (ACP) 25
AF Analyzer 27
AF Generator 1 33
AFGenerator2|Encoder 35
AF Generator 2 Pre-Modulation Filters 43
Call Processing 45
Configure 97
Decoder 107
Display 109
Measure 111
Oscilloscope 121
Program 127
Radio Interface 129
RF Analyzer 131
RF Generator 133
RF Path Control 137
Save/Recall Registers 139
Special (GPIB Only Commands) 141

Contents
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Spectrum Analyzer 143
Status 145
System 149
Tests 151
Trigger
155
Integer Number Setting Syntax 157
Real Number Setting Syntax 159
Multiple Real Number Setting Syntax 161
Number Measurement Syntax 163
Multiple Number Measurement Syntax 165

Contents
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3 GPIB Common Commands
IEEE 488.2 Common Commands 168
Common Command Descriptions 169

Contents
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4 Remote Capabilities
Remote Operating Capabilities 180
Remote Interface Functions 181

Contents
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5 Front-Panel Control Fields to
GPIB Command Cross-Reference
A 186
B 193
C 195
D 202
E 207
F 209
G 212
H 213
I214
L 217
M220
N 225
O 227
P 230
R 237
S 244
T 255
U 262
V 263

Contents
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W 265
X 267
Numerals or Symbols 268

Contents
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6 Which Control Order Command Should I Use?
270

Contents
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Index 273

Contents
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1
Remote/Local Modes

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Remote/Local Modes
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S:\agilent\8920\Qkref_20-206\BOOK\CHAPTERS\remmodes.fb
Remote/Local Modes
“Control Annunciators” on page 18
“Remote Mode” on page 18
“Local Mode” on page 18
“Remote or Local Mode” on page 19
“Local To Remote Transitions” on page 19
“Remote To Local Transitions” on page 19
“Local Lockout” on page 19
“Clear Lockout/Set Local” on page 20
Control Annunciators
The letters and symbols at the top right corner of the display indicate these conditions:
•Rindicates the Test Set is in remote mode. The Test Set can be put into the remote mode
by an external controller or by an IBASIC program running on the built-in IBASIC con-
troller.
•Lindicates the Test Set has been addressed to Listen.
•Tindicates the Test Set has been addressed to Talk.
•Sindicates the Test Set has sent the Require Service message by setting the Service Re-
quest (SRQ) bus line true.
•Cindicates the Test Set is currently the Active Controller on the bus.
•*indicates an IBASIC program+ is running.
•?indicates an IBASIC program is waiting for a user response.
•-indicates an IBASIC program is paused.
Remote Mode
In Remote mode all front panel keys are disabled (except for the LOCAL key, POWER switch, Volume
control and Squelch control). The LOCAL key is only disabled by the Local Lockout bus command. When
in Remote mode and addressed to Listen the Test Set responds to the Data, Remote, Local, Clear(SDC),
and Trigger messages. When the Test Set is in Remote mode, the “R” annunciator will be displayed in the
upper right corner of the display screen and triggering is set to the state it was last set to in Remote mode
(if no previous setting the default is FULL SETTling and REPetitive RETRiggering). When the Test Set is
being addressed to Listen or Talk the “L” or “T” annunciators will be displayed in the upper right corner of
the display screen.
Local Mode
In Local mode the Test Set’s front panel controls are fully operational. The Test Set uses FULL SETTling
and REPetitive RETRiggering in Local mode. When the Test Set is being addressed to Listen or Talk the
“L” or “T” annunciators will be displayed in the upper right corner of the display screen.

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Remote/Local Modes
S:\agilent\8920\Qkref_20-206\BOOK\CHAPTERS\remmodes.fb
Remote or Local Mode
When addressed to Talk in Remote or Local mode , the Test Set can issue the Data and Status Byte
messages and responds to the Take Control message. In addition the Test Set can issue the Service Request
Message (SRQ). Regardless of whether it is addressed to talk or listen, the Test Set will respond to the
Clear(DCL), Local Lockout, Clear Lockout/Set Local, and Abort messages.
Local To Remote Transitions
The Test Set switches from Local to Remote mode upon receipt of the Remote message (REN bus line true
and Test Set is addressed to listen). No instrument settings are changed by the transition from Local to
Remote mode, but triggering is set to the state it was last set to in Remote mode (if no previous setting the
default is FULL SETTling and REPetitive RETRiggering). The “R” annunciator in the upper right corner
of the display is turned on.
When the Test Set makes a transition from local to remote mode all currently active measurements are
flagged as invalid causing any currently available measurement results to become unavailable. If the
GPIB trigger mode is RETR:REP then a new measurement cycle is started and measurement results will be
available for all active measurements when valid results have been obtained. If the GPIB trigger mode is
RETR:SING then a measurement cycle must be started by issuing a trigger event.
Remote To Local Transitions
The Test Set switches from Remote to Local operation (full front panel control) upon receipt of the Local
message (Go To Local (GTL) bus message and Test Set is addressed to listen) or the Clear Lockout/Set
Local message (REN bus line false). No instrument settings are changed by the transition from Remote to
Local mode, but triggering is reset to FULL SETTling and REPetitive RETRiggering. The “R”
annunciator in the upper right corner of the display is turned off.
If it is not in Local Lockout mode the Test Set switches from Remote to Local mode whenever the front-
panel LOCAL key is pressed.
If the Test Set was in Local Lockout mode when the Local message was received, front-panel control is
returned, but Local Lockout mode is not cleared. Unless the Test Set receives the Clear Lockout/Set Local
message, the Test Set will still be in Local Lockout mode the next time it goes to the Remote mode.
Local Lockout
The Local Lockout mode disables the front-panel LOCAL key and allows return to Local mode only by
commands from the System Controller (Clear Lockout/Set Local message).
When a data transmission to the Test Set is interrupted, which can happen if the LOCAL key is pressed, the
data being transmitted may be lost. This can leave the Test Set in an unknown state. The Local Lockout
mode prevents loss of data or system control due to someone unintentionally pressing front-panel keys.

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Remote/Local Modes
20
S:\agilent\8920\Qkref_20-206\BOOK\CHAPTERS\remmodes.fb
NOTE: Return to Local mode can also be accomplished by setting the POWER switch to OFF and
back to ON. However, returning to Local mode in this way has the following
disadvantages:
1It defeats the purpose of the Local Lockout mode in that the Active Controller will loose
control of the Test Set,.
2Instrument configuration is reset to the power up condition thereby loosing the instru-
ment configuration set by the Active Controller
Clear Lockout/Set Local
The Test Set returns to Local mode (full front panel control) when it receives the Clear Lockout/Set Local
message. No instrument settings are changed by the transition from Remote mode with Local Lockout to
Local mode but triggering is reset to FULL SETTling and REPetitive RETRiggering.