Agilent

8644 B Signal

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Agilent8644 B Signal

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Power

Signal Generator^[1]

Performance

±1.0 dB down to -127 dBm^[3]

What is it?

The Agilent 8644B is a synthesized RF signal generator with low phase noise and internal modulation capability.

What do the numbers mean?

Power & electrical5

Category: Signal Generator^[1]
Frequency range: 252 kHz to 1030 MHz^[2]
Optional frequency range: 2060 MHz option 002^[2]
SSB phase noise at 20 kHz offset: -136 dBc/Hz at 1 GHz^[3]
Internal modulation synthesizer coverage: up to 400 kHz^[3]

Performance1

Output level accuracy: ±1.0 dB down to -127 dBm^[3]

Control & software1

Remote programming interface: GPIB (IEEE 488.2-1987)^[2]

Configuration & options7

Model: 8644B^[1]
Make: Agilent^[1]
Spurious: -105 dBc^[3]
Waveforms: sine, square, triangle, sawtooth, and white Gaussian noise^[3]
Modulation: AM, FM, and pulse modulation^[2]
Output level range: +16 to -137 dBm^[2]
Output impedance: 50 Ω^[2]

Vintage & configurations

Documented models & variants

Designation	Generation	Vintage	Changes	Source
8644B Option 002	—	—	Extends frequency coverage to 2060 MHz.	hpwiki.mcguirescientificservices.com^[2]
8644B Option 011	—	—	Adds a built-in 2 GHz frequency counter.	hpwiki.mcguirescientificservices.com^[2]
8644B Option 009	—	—	Provides VOR/ILS signal simulation.	hpwiki.mcguirescientificservices.com^[2]
8644B Option 010	—	—	Provides ultra low leakage.	hpwiki.mcguirescientificservices.com^[2]

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What does it need to run?

Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.

CategorySignal Generator^[1]
Frequency range252 kHz to 1030 MHz^[2]
Optional frequency range2060 MHz option 002^[2]
SSB phase noise at 20 kHz offset-136 dBc/Hz at 1 GHz^[3]
Internal modulation synthesizer coverageup to 400 kHz^[3]

Where are the manuals?

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Not publicly documented

Field notes

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Not publicly documented

The following facts about the 8644 B Signal are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.

No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the 8644 B Signal are on record.
Answerable by: OEM historical records or a trade-press announcement
The control-system platform and OS era of the 8644 B Signal are not on record.
Answerable by: an engineer who operated it or OEM installation records
No publicly documented failure modes or field errata for the 8644 B Signal are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the 8644 B Signal is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the 8644 B Signal are on record.
Answerable by: an OEM parts catalog or a service engineer

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Sources & citations

Sources (3)Every fact above is drawn from these public sources

[1]Equipment inventory listing
[2]hpwiki.mcguirescientificservices.com — hpwiki.mcguirescientificservices.comhpwiki.mcguirescientificservices.com
[3]testequipmentdepot.comtestequipmentdepot.com