SynthHD: 54MHz – 13.6 GHz Dual Channel Microwave Generator

SynthHD: 54MHz – 13.6 GHz Dual Channel Microwave Generator


*NEW HW v1.4* SynthHD: A 54MHz – 13.6GHz USB Controlled Dual Channel RF Signal Generator.

Downloads for SynthHD:

  1. Datasheet
  2. Software Users Guide
  3. Control Software GUI Download (hit Cancel during hardware search if demo-ing software)
  4. Linux & Windows Command Line Guide
  5. Compare with the SynthHD PRO
  6. SynthHD Press Release


In Stock.  Ships within 3 business days.


SKU: SynthHD Category:


Microwave Vector Signal Generator, Dual Channel – SynthHD

The Windfreak SynthHD RF Signal Generator brings in a new era of low cost Microwave Signal Generation.


  • 54 MHZ to 13.6 GHZ in 0.1 Hz steps
  • -50 dBm to +20 dBm (typical) in 0.01 dB steps
  • Set each channel to independent frequencies and amplitudes
  • 0 to 360 degrees coherent phase control in 0.01 degree steps on each channel
  • Stack multiple devices for coherent phase control on every channel
  • Select internal 10 or 27MHz reference or use external 10-100MHz reference
  • Pulse, AM and FM internal modulation including FMCW radar chirp
  • Pulse Modulation with 1uS minimum width and 1uS resolution
  • Pulse, AM and FM external modulation from DC – 10KHz
  • Powerful Trigger modes allow external triggering of most functions without a PC connected
  • Linear and list mode (frequency and amplitude hopping) sweeps include dual channel differential sweeps
  • Save all settings to the device for use without a PC
  • 32 bit ARM processor on board which is Arduino compatible (Teensy 3.2)
  • Digital schematics and complete Labview GUI executable and source code (pictured below) included with purchase
  • Top and bottom side PCB snap connector locations brings 20 power, analog and digital I/Os to your custom mezzanine boards
  • Windows, Linux and Android compatibility
  • Designed and manufactured in the USA with maximized value / cost ratio
  • Contact us for custom firmware and hardware options

New version 1.4 hardware released on April 18th, 2016 – Serial # 208 and higher only:

Version 1.4 hardware requires version 2 software. Version 2 software is not backwards compatible with version 1.3 hardware and older due to physical hardware changes on the boards. Version 1.4 hardware improvements are:

  • Storage of calibration files in hardware
  • Send RF power commands in dBm rather than raw DAC values
  • Simpler customer software writing concerning RF power setting
  • Added high accuracy RF calibration capability
  • Added external modulation capability for FM, AM and Pulse
  • Added low jitter mode for radar applications
  • Improved pulse circuitry for better Pulse Modulation


SynthHD Software GUI (Labview source code included with purchase)


The following video shows the SynthHD doing a Pulsed FM Radar Chirp (FMCW) that is simultaneously AM modulated.

The video below is taken with both channels driven into a mixer. The mixer is then fed into an oscilloscope and displayed on the right side of the video. The signal shows the DC and near DC downconverted component. The DC level depends on the phase relationship between the two channels. The switch on the far right of the GUI toggles between controlling channels (RFA or RFB). For orders over 10 units discounts will apply. Request a quote here. Emails will be answered within 24 hours. Keep an eye on your SPAM folder. You will be given a lead time and a quote if you desire large volume.

Additional information

Weight 1.5 lbs
Dimensions 7 x 5 x 2 in