Keysight (Agilent)
Keysight (Agilent) 5351A
Microwave Counter 10 Hz - 26.5 GHz
500 MHz to 26.5 GHz Frequency Range
1 Hz Frequency Resolution
50 Ohm Input Impedance
-20 dBm (typical) at 26.5 GHz Sensitivity
2 Channels Number of Channels

| Attribute | Value |
|---|---|
| Frequency Range | 500 MHz to 26.5 GHz |
| Frequency Resolution | 1 Hz |
| Input Impedance | 50 Ohm |
| Sensitivity | -20 dBm (typical) at 26.5 GHz |
| Number of Channels | 2 Channels |
| Measurement Function | Frequency, Period, Time Interval, Ratio |
| Display | 9-digit LED Display |
| Timebase Aging Rate | ±1 x 10⁻⁹ per day (standard timebase) |
| Power Requirements | 100–240 VAC, 50/60 Hz |
| Operating Temperature Range | 0°C to 55°C |
Keysight Technologies 5351A Options:
- 5351A - 001 - Oven Time Base
- 5351A - 002 - Rear Panel Inputs
- 5351A - 006 - Microwave High Sensitivity Level Limiter
- 5351A - 010 - High Stability Oven Time Base
- 5351A - 908 - Rack Mount Kit for use with front handles removed
- 5351A - 910 - Additional Operating & Service Manual
- 5351A - 913 - Rack Mount Kit for use with supplied front handles
- 5351A - W30 - 2 year extended hardware support
| Model | 5351A |
|---|
The Keysight (Agilent) 5351A CW Microwave Counter offers precise frequency measurement from 10 Hz to 26.5 GHz, with sensitivity down to -30 dBm and 1 Hz resolution. It features a 24-character segmented backlit LCD display and intuitive operation powered by a single microprocessor.
This counter is ideal for demanding RF applications requiring high accuracy and user-friendly functionality, supported via HP-IB connectivity for seamless integration.
Testwall can supply the used Keysight (Agilent) 5351A, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Keysight (Agilent) 5351A.





