HP 8657A 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 8657A Specifications

General

Brand	HP
Model	8657A
Category	Portable Generator
Language	English

Summary

HP 8656/57 Series Economical Synthesized Signal Generators

HP 8656/57 Series Synthesized Signal Generators

HP 8657D

HP 8657A/B Option 022

HP 8656B Specifications

HP 8656B - Output and Modulation

HP 8657A Specifications

FREQUENCY

Frequency range, resolution, switching speed, and accuracy.

HP 8657A - Output and Modulation

HP 8657B Specifications

Nonharmonic Spurious

Nonharmonic spurious signal levels across frequency ranges.

Residual FM in Hz rms (in CW mode)

Residual FM performance across different frequency ranges and bandwidths.

Residual AM (50 Hz to 15 kHz post-detection noise bandwidth, in CW mode)

Residual AM performance in CW mode.

SSB Phase Noise (in CW Mode)

SSB phase noise specifications at 20 kHz offset.

SPECTRAL PURITY

Harmonic and sub-harmonic spurious signal levels.

HP 8657B - Output and Modulation

OUTPUT

Signal output level range, resolution, and accuracy.

AMPLITUDE MODULATION

AM depth, rate, distortion, and incidental phase modulation.

FREQUENCY MODULATION

HP 8657D Specifications

π/4 DQPSK Digital Modulation Mode

Overview of ",/4 DQPSK digital modulation capabilities.

OUTPUT

π/4 DQPSK MODULATION

Detailed parameters for ",/4 DQPSK modulation format and data rate.

PULSE MODULATION

HP 8657A/B Option 022 Specifications

Analog Modulation Mode

0.3 GMSK Digital Modulation Mode

Overview of 0.3 GMSK digital modulation capabilities.

FREQUENCY

SPECTRAL PURITY

0.3 GMSK MODULATION

Detailed parameters for 0.3 GMSK modulation format, filter, and data rate.