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HP 8921A - User Manual

HP 8921A
601 pages
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HP 8921A Cell Site Test Set
User’s Guide
Firmware Version A.15.00 and above
HP Part No. 08921-90022
Printed in U. S. A.
December 1997
Rev. F
DUPLETXRX PREV TESTS
CO NFIHELPMSSG HOLD PRINT
SCREEN CONTROL
LOCAL
ADRS
RECAL
SAVE
MEAS
PRESE
INSTRUMENT STATE
DATA FUNCTIONS
INCR
REF
INCR
METER
IN CR
AVG
LO HI
CURSOR CON-
PUSH TO
CANCE
SHIFT
k1
k1’
k2
k2’
k3
k3’
k4
ASSIG
k5
RELEA
USER
DATA
789
456
123
0
+
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ENTER
GHz
dB
MHz
%
kHz
s
Hz
ms
%
ppm
NO
ON/OFF
YES
MEMO
AUDIO IN
LOHI
!
MAX
!
MAX
AUDIO SQUELCVOL-
MIC/
MA X POW ER 200
!
ANT INDUPLEX OUTRF IN/OUT
!
MAX POWER
POWE
OF O

Table of Contents

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HP 8921A Specifications

General IconGeneral
Frequency Resolution1 Hz
Input Impedance50 ohms
Modulation TypesAM, FM, PM
RF Generator Output Accuracy±1 dB
Voltage Standing Wave Ratio (VSWR)1.5:1

Summary

Chapter 1, Get Started

Before Connecting a Radio

Describes the proper use of the RF IN/OUT port and ANT IN port for transmitter tests and off-the-air measurements.

How do I Verify that the Test Set is Operating Properly?

Provides an instrument quick check procedure to verify the basic operational functions of the Test Set.

Chapter 2, Configuring Your Test Set

Chapter 3, Operating Overview

Saving and Recalling Instrument Setups

Explains how to store and retrieve instrument setups to save time.

Chapter 4, Adjacent Channel Power Screen

How the Test Set Measures Adjacent Channel Power (ACP)

Outlines the multi-step process the Test Set uses to measure ACP, including carrier reference and power analysis.

Chapter 5, AF Analyzer Screen

Chapter 6, Call Processing Subsystem

Description of the Call Processing Subsystem

Explains the Call Processing Subsystem's role in simulating a cellular base station and maintaining mobile links.

The CALL CONTROL Screen

Details the primary screen for call processing configuration and commands, displaying mobile station information.

Using the Call Processing Subsystem

Provides instructions on connecting a mobile station to the Test Set for subsystem operation.

Generalized Procedures Using the Call Processing Subsystem

Outlines general procedures for using the Call Processing Subsystem, referencing specific sections for details.

Chapter 7, Configure Screen

Chapter 8, Signaling Decoder Screen

Field Descriptions for Decoder Modes

Analyzes data-encoded signaling formats, listing standards and descriptions for each mode.

AMPS-TACS, NAMPS-NTACS Decoder

Analyzes RECC and RVC message streams for cellular formats, acting as a base station receiver.

Continuous Digital Controlled Squelch System Decoder

Analyzes digital data streams used for digitally-controlled-squelch radios.

Digital Paging Decoder

Tests paging system transmitters using various digital access formats and frequencies.

Dual-Tone Multi-Frequency (DTMF) Decoder

Analyzes DTMF tone sequences and displays associated parameters.

EDACS Decoder

Decodes digital signaling data from EDACS transmitters to test mobile radios.

Function Generator Decoder

Analyzes sequential tone signals and displays associated parameters.

LTR Decoder

Displays trunked signaling data for mobile radios and repeaters using the LTR format.

MPT 1327 Decoder

Decodes and displays MPT 1327 data streams, primarily for IBASIC program control.

NMT Decoder

Tests Nordic Mobile Telephone equipment using different NMT standards.

Tone Sequence Decoder

Analyzes sequential tone signals and displays associated parameters.

Chapter 9, Duplex Test Screen

Chapter 10, Signaling Encoder (AF Generator 2)

AMPS-TACS NAMPS-NTACS Encoder

Creates cellular telephone data streams, acting as a base station transmitter for FOCC/FVC.

CDCSS Encoder

Generates signals to test radios using digitally-encoded signals for squelch control.

Digital Paging Encoder

Outputs signals to test pagers using various digital access formats and frequencies.

Dual-Tone Multi-Frequency (DTMF) Sequence Encoder

Creates DTMF tone sequences of variable frequency, amplitude, and duration.

EDACS Encoder

Simulates an EDACS repeater site to test trunked mobile radios.

Function Generator Encoder

Provides single-tone audio frequency signals of various waveforms, amplitudes, and frequencies.

LTR Encoder

Tests trunked mobile radios using the EF Johnson LTR format.

MPT 1327 Encoder

Tests trunked mobile radios using the MPT 1327 standard, controlled via IBASIC programs.

Nordic Mobile Telephone (NMT) Encoder

Creates signals for NMT communication between Mobile Station, Base Station, and MTX.

Tone Sequence Encoder

Generates sequential tone signals of variable frequency, amplitude, and duration.

Chapter 12, I;O Configure Screen

Chapter 14, Oscilloscope Screen

Using the Oscilloscope

Explains how the oscilloscope's input is determined by the AF Anl In field setting.

Chapter 16, Radio Interface Screen

Using the Radio Interface (Manual Operation)

Guides on manually operating the Radio Interface, including inputting data and logic level settings.

Using The Radio Interface (Remote Operation)

Covers HP-IB commands for configuring and operating the Radio Interface remotely.

Chapter 17, RF Analyzer Screen

Chapter 18, RF Generator Screen

Chapter 19, RX Test Screen

Chapter 20, Service Screen

Chapter 21, Spectrum Analyzer Screen

RF In;Ant

Selects the input port, with sensitivity and caution notes.

Chapter 22, Tests Screen

Description of the Tests Subsystem

Explains the subsystem for creating, editing, and running automated test programs.

Chapter 23, TX Test Screen

Amplitude

Adjusts the amplitude of the RF Generator, with priority control considerations.

Chapter 24, Connector, Key, and Knob Descriptions

Error Messages

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