Description
HP 8566B Spectrum Analyzer 100Hz-22GHz w/ 85660B Display For Parts
The HP 8566B is a high-performance microwave spectrum analyzer covering 100 Hz to 22 GHz, paired here with the HP 85660B external display unit. This listing is for the analyzer and display together as a stacked pair. The unit does not power on and the cause is unknown — it is being sold strictly AS-IS for parts or repair.
Specifications & What's Included
- Make / Model: Hewlett-Packard (HP) 8566B
- Option: 85660B (external CRT display unit)
- Frequency range: 100 Hz to 22 GHz (DC-coupled input)
- Extended coverage: 26.5–75 GHz with preselected external mixers; up to 325 GHz with other external mixers
- Internal HP-IB (GPIB) bus for computer control and data transfer
- 16 KB user RAM for trace data, instrument states, and downloadable programs (DLPs)
- Form factor: rack-mount (two rack units stacked — analyzer + display)
- Rear panel: power inlet, GPIB connector, RF input/output ports, ventilation
- No cables included
- Sold AS-IS: does not power on — fault cause unknown
Applications
The HP 8566B belongs to HP's 856x series of synthesized spectrum analyzers, introduced in the early 1980s and widely used through the 1990s in microwave research, defense electronics, satellite communications, and RF component test. Its synthesized local oscillator gave it exceptional frequency accuracy and low residual FM compared to swept-tuned analyzers of the era, making it a preferred instrument for characterizing oscillators, amplifiers, filters, and microwave subsystems up to 22 GHz — and well beyond with waveguide mixer accessories. The 85660B display option provided a standalone CRT readout, useful in rack system configurations where the analyzer's own display was not accessible. Units from this series remain sought after by RF/microwave engineers, test equipment repair technicians, and collectors of vintage HP instrumentation. This particular unit is suited for parts recovery, chassis repair, or display-subsystem salvage.
This HP 8566B Spectrum Analyzer with 85660B Display does not power on and is being sold AS-IS for parts or repair only. The cause of the power failure is unknown and the unit has not been tested beyond confirming it will not power up. No cables are included. Buyers should review all photos carefully and are encouraged to contact us with any questions before purchasing.
Warranty Information
Additional Information
Brand: |
HP |
Model: |
8566B |
MPN: |
8566B |
Secondary Model: |
85660B |
Type: |
Spectrum Analyzer |
SKU: |
51971 |
Seller Notes: |
Includes 8566B analyzer and 85660B display unit. No cables included. |
Frequency Range: |
100 Hz to 22 GHz |
Extended Frequency Range: |
Up to 325 GHz with external mixers |
Option: |
85660B (Display) |
Input: |
DC-coupled input |
Form Factor: |
Rack Mount |
Country/Region of Manufacture: |
United States |
Compatible With: |
HP 8566B, external waveguide mixers 26.5–75 GHz |
Power Requirements: |
Unknown — unit does not power on |
Interface Type: |
GPIB (HP-IB) internal bus |
Number of Channels: |
1 |
Series: |
HP 8560 Series |
Condition Notes: |
HP 8566B Spectrum Analyzer w/ 85660B Display does not power on — sold AS-IS for parts or repair. Cause unknown, untested. No cables included. Please contact us with any questions. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |