Signal Hound SA44B 4GHz Spectrum Analyser



Signal Hound 4GHz Spectrum Analyser

The Signal Hound SA44B 4GHz Spectrum Analyser is a Software Defined Radio (SDR) optimized as a 4GHz spectrum analyser. It is compact, simple to use, and an effective troubleshooting tool for general lab use, engineering students, ham radio enthusiasts, and electronics hobbyists. Using recent innovations in RF technology, the Signal Hound has the sensitivity, accuracy and dynamic range you’d expect in a unit many times its cost.


    • RF Frequency Range: 1 Hz to 4.4 GHz
      • Low noise amplifier available above 500 KHz
    • Wide dynamic range: -151 dBm to +10 dBm
    • Resolution bandwidths (RBW) of 0.1 Hz to 250 KHz and 5 MHz
    • Includes a High Dynamic Range Measuring Receiver
      • 0.25 dB relative accuracy
      • 0 dBm to -125 dBm, 150 KHz to 1 GHz
      • 0 dBm to -115 dBm, 1 GHz to 4.4 GHz
      • Adjustable digital audio filters
      • Accurate AM and FM measurements
    • No external power supply needed – draws power from USB
    • Powerful Digital Signal Processing happens on the PC
    • Software and Hardware included for one low price
    • Additional Third-Party Software Packages are available
      • TSCM software is available, and is being marketed
        as “Kestrel TSCM Software” through Silvertone® as a distributor for
    • Write your own software with our free Application Programming Interface (API)
      • I/Q Data up to a 240 KHz bandwidth
      • Frequency Sweeps up to 140 MHz per second
    • Compatible with Windows operating systems
      • Windows XP or newer recommended
    • AM and FM Demodulation Measurements
    • USB 2.0 communications at 480 MBPS
    • Demodulates AM/FM/SSB/CW audio in real-time
    • Automation capability using our API
    • Measures ~205mm (8″) long
    • Weighs ~283g (10oz)

USB-SA44B Data Sheet

USB-SA44B User Manual

Related videos on YouTube

NOTE: All Signal Hound products now require an End-User Certificate to be completed and emailed back to Silvertone® before products can be shipped.

*The Signal Hound money back guarantee is valid for the first Signal Hound product purchased. When multiple units are purchased only the first of any model is covered by the no-questions guarantee. This guarantee does not limit a customer’s rights under law.

Additional information

Weight 0.8 kg
Dimensions 25 × 15 × 10 cm
Temperature Range

0°C to +70°C, -40°C to +85°C

Calibration Certificate

No cal certificate, Calibration Certificate from Factory