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Calibration Type *

All Signal Hound devices are calibrated to better-than-box specs during production. However, if you require a signed calibration certificate with a printed packet of calibration data, you will need to select it below:

Warranty length *

Our standard warranty is for a 2-year time period. An extended warranty is available up to a total of five years (2-year warranty plus 3 additional years). Extended warranties are calculated at 6% of the product cost, per year.

Upgrade your SA124B to a Scalar Network Analyzer with the TG124A!

The Signal Hound TG124A is a 100 kHz to 12.4 GHz tracking generator which works with your SA124A to measure filters, attenuators, amplifiers and more! It is compact, simple to use, and an effective troubleshooting and analysis tool in the lab or in the field. Whether you are an amateur radio enthusiast or a microwave communications professional, the TG124A provides fast, accurate results.


  • RF Frequency Range: 100 kHz to 12.4 GHz
  • Amplitude range: -30 dBm to -12 dBm
  • Up to 19 selectable frequency step sizes in a 1-2-5 sequence
    • Below 4 GHz: 10 Hz to 10 MHz steps
    • Above 4 GHz: 100 Hz to 10 MHz steps
  • Sweep up to 700 frequency points per second with the SA124A
  • No external power supply needed – draws power from USB
  • Software and Hardware included for one low price
  • Write your own software with our
    free Application Programming Interface (API)
  • Compatible with the Windows operating systems
  • Measures 8 inches long
  • Weighs 10 ounces
  • Includes 20 dB attenuator, p/n Mini-Circuits FW-20+

3 reviews for TG124A Tracking Generator

  1. Avatar

    Michael H.

    I use these devices for analyzing UWB antennas. It works really well.

  2. Avatar

    Kameswararao K.

    Excellent product

  3. Avatar

    Gary W.

    Hello Cory Allen

    On Apr 6, 2014 I purchased a USB-SA124B 12.4 GHz Spectrum Analyzer and a USB-TG124A 12.4 GHz Tracking Generator from Signal Hound.
    After using the equipment for months I have made the following observations.
    Signal Hound outperformed the test equipment I previously owned.
    Signal Hound pricing is very competitive.
    I like the fact that Signal Hound uses a PC as a display, keyboard and power supply, this will significantly improve serviceability.
    Would I recommend this equipment?
    Absolutely! Five stars from me.

    Gary Ward
    Technical Advisor
    Auburn Technology Corporation

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Device dimensions


Weight.68 lbs (.3 kg)
Dimensions7.67" x 3.18" x 1.18" (19.5 x 8 x 3 cm)

Product-in-packaging dimensions


Weight1.54 lb (.7 kg)
Dimensions9.25" x 5.44" x 3.13" (23.5 x 13.8 x 7.95 cm)

Software and Drivers

Spike software

  • Spectrum analysis software for all Signal Hound spectrum analyzers.
  • Separate USB driver download for TG devices.
  • Unzip (extract all files and run Spike Installer.msi and CDM v2.12.00 WHQL Certified.exe).
  • Includes Standalone TG44A software, found in the Spike directory after installation.

Signal Hound Software Development Kit

  • C Programming interface for Windows/Linux
  • Direct device control 

User Manuals

Legacy Software

The TG44A can be used with the legacy SA44B and SA124B software, located on the SA44B downloads page