HP 8657B User Manual

HP 8656157 Series
Economical Synthesized
Signal Generators
Analog and Digital Modulation
Technical Data
HP 8656B, 8657A/B,
8667D, 8657AIB Opt 022
HP 8656/57 Series
Synthesized Signal
Generators
The HP 8656157 series is
designed to meet the testing
needs of the communication
industry.
Test AM, FM, and
pulsed receivers as well as
components. Use it in R&D,
manufacturing, and support.
There are six signal generators
in the family, all offering
exceptional analog modulation,
good spectral purity, and superb
output level performance.
HP 8657D
The HP 8657D adds d4 DQPSK
modulation. Test radios
designed for the North
American Digital Cellular Radio
System and Japanese Digital
Cellular
System.
HP 8657A/B Option 022
For European digital
communication sys terns, the
HP 8657- Option 022
generates 0.3 Gaussian
Minimum Shift Keying (0.3
GMSK). Test receivers designed
for the GSM Pan-European
Di~tal Cellular Radio System
and the PCN European
Personal Communications
Network.

HP 8657B Specifications

General

Brand	HP
Model	8657B
Category	Portable Generator
Language	English

Summary

HP 8656/57 Series Synthesized Signal Generators

HP 8656B Specifications

Output Specifications

Level Range and Accuracy

Describes output power levels and their precision.

Level Flatness, SWR & Protection

Amplitude Modulation

AM Depth, Resolution & Rate

AM Depth, Rate & Distortion

Frequency Modulation

FM Peak Deviation and Rate

Combines Max FM Peak Deviation and FM Rate/Resolution.

Frequency Accuracy, Stability & Distortion

HP 8657A Specifications

Residual AM and SSB Phase Noise

Details AM and SSB phase noise specifications.

HP 8657B Specifications

Output Specifications

Level Range, Accuracy & Flatness

Describes output power levels, precision, and variation.

SWR & Reverse-Power Protection

Pulse Modulation

On/Off Ratio & Rise/Fall Time

Details pulse modulation characteristics.

HP 8657B Option H60

Pulse Modulation Features

HP 8657D Specifications

Frequency Specifications

Covers range, resolution, switching speed, and accuracy.

π/4 DQPSK Digital Modulation

Modulation Format and Data Rate

Details DQPSK format and data rates.

Pre-modulation Filter & EVM

Covers filter shape and error vector magnitude.

HP 8657A/B Option 022 Specifications

0.3 GMSK Digital Modulation

Introduces GMSK digital mode, format, and data rates.

Spectral Purity

Discusses harmonics, spurious, and noise floor.

0.3 GMSK Modulation Details

Format, Data Rate & Filter

Combines GMSK format, data rate, and pre-modulation filter.

Phase Error, Frequency Error & I/O