HP 8656 Series - 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 8656 Series Specifications

General

Brand	HP
Model	8656 Series
Category	Portable Generator
Language	English

Summary

HP 8656 B Specifications

Frequency

Specifies the frequency range and resolution for the signal generator.

Spectral Purity

Details spurious signals and residual FM/AM performance.

Timebase Characteristics

Covers aging rate, temperature, and line voltage effects on timebase.

Supplemental Characteristics

Provides additional typical performance information.

Output

Frequency Modulation

Amplitude Modulation

Remote Programming

HP 8657 A Specifications

Frequency

Specifies the frequency range and resolution for the signal generator.

Spectral Purity

Details spurious signals and residual FM/AM performance.

Timebase Characteristics

Covers aging rate, temperature, and line voltage effects on timebase.

Supplemental Characteristics

Provides additional typical performance information.

Output

Frequency Modulation

Amplitude Modulation

General

HP 8657 B Specifications

Nonharmonic Spurious

Details nonharmonic spurious signal levels relative to carrier.

Residual FM

Specifies residual FM levels in CW mode.

Spectral Purity

Covers harmonic and sub-harmonic spurious signals.

SSB Phase Noise

Provides SSB phase noise specifications.

Supplemental Characteristics

Offers additional typical performance data.

Output

Amplitude Modulation

Frequency Modulation

Pulse Modulation

HP 8657 D Specifications

Frequency

Details the frequency range and resolution for digital mode.

Spectral Purity

Lists harmonics, spurious signals, residual FM, and phase noise.

Output

Defines the output level range and accuracy.

Pi;4 DQPSK Modulation

Describes modulation format, data rate, and filter characteristics.

HP 8657 A;B Option 022 Specifications

Frequency

Defines frequency ranges for data normal and inverted modes.

Spectral Purity

Lists harmonics, spurious, and noise floor specifications.

0.3 GMSK Modulation

Details modulation format, filter, data rate, and phase error.

Analog Modulation Mode

Describes analog performance as per 8657A/B specs.

Ordering Information

Accessories

Retrofit Kits

Lists part numbers for ordering standard options after shipment.

Manuals

Provides descriptions and part numbers for manuals.

Transit Cases

Specifies transit cases for mainframes and digital modulators.

Handles and Rack Mount Accessories

Lists kits for handles, rack mounting, and slides.