Description
The Keysight N9961B is a FieldFox B-series handheld spectrum analyzer that covers 9 kHz to 44 GHz through a 2.4 mm test port. It brings lab-grade microwave and millimeter-wave spectrum measurements to field sites in a battery-powered, sealed housing. Optional capabilities such as real-time spectrum analysis, interference analysis and extended IQ bandwidth can be added as needed. Satellite ground station crews, 5G and backhaul installers, and aerospace and defense technicians use it for signal verification and interference troubleshooting.
Key features
- 9 kHz to 44 GHz frequency range
- 2.4 mm precision test port
- Battery-powered handheld FieldFox platform
- Optional real-time spectrum analysis and interference analyzer
- Rugged sealed design for outdoor use
Typical applications
- Satellite and microwave link installation
- Millimeter-wave 5G and backhaul verification
- Radar and electronic warfare system checks
- Interference hunting in the field
Specifications
| Brand | Keysight |
|---|---|
| Model | N9961B |
| Series | FieldFox N996xB |
| Product type | Handheld spectrum analyzer |
| Frequency range | 9 kHz to 44 GHz |
| Test port | 2.4 mm |
| Power | Rechargeable battery or AC adapter |
| Form factor | Handheld, ruggedized |





Reviews
There are no reviews yet.