Hewlett Packard 8561E microwave spectrum analyzer designed for RF, telecommunications, microwave and laboratory measurement applications.

Specifications:

- Model: HP 8561E

- Frequency range: 30 Hz to 6.5 GHz

- CRT display

- HP-IB (GPIB) interface

- RF input and calibration outputs

- Professional laboratory-grade RF measurement instrument

The analyzer powers on and displays measurement menus and frequency settings. During startup the instrument reports ERR 334 (LO AMPL) visible on the display. Because of this error, the unit is offered as-is for repair, calibration, restoration or parts.

Suitable for RF laboratories, service centers, educational facilities and vintage HP test equipment collectors.