Are you interested in operating PSK31 - FT8 - JT65 - Echolink - RTTY - SSTV etc ??? 
*** High performance USB Sound Card Interface with transformer isolated Tx/Rx audio and opto-coupled PTT ***
*** Plug and Play - Plugs into a free USB port on your PC and directly into the Data/Packet jack on your transceiver ***

The XGGCOMMS USB-Digimode-3


Item description

This galvanically isolated Ham Radio USB Sound Card interfaces to your Xiegu transceiver giving you access to digital modes such as PSK31, WSJT-X, JT65, FT-8,  Echolink and any other AFSK mode. It simply plugs into a free USB port on your PC and to the data/packet port of your transceiver. No other cables are required.

The interface contains the C-Media 108 soundcard chip and has full 600:600 Ohm transformer isolation of the transmit and receive signals and opto-isolated  PTT keying. Being an independent sound card, it gives you dedicated audio level controls to adjust the transmit and receive levels for your chosen digital mode software. This frees up the standard PC sound inputs/outputs for normal PC use. 

The interface uses a built in VOX function for PTT keying making it compatible with just about any digital mode application such as FlDigi, WSJT-X, DM780 (part of HRD suite), Echolink, Digipan, WinPSK etc.

Interface Key Features

  • Built in C-Media CM108 sound card. Plug and play as most Windows and MacOs PCs have the C-Media drivers built in.
  • PSK31 etc. Full transmit and receive interfacing between your PC soundcard and transceiver to allow you to operate afsk digital modes such as PSK31, JT-65, FT-8, Echolink and many more.
  • Fully isolated audio. Full galvanic isolation of Tx and Rx audio signals using Bourns 600:600 Ohm transformers.
  • Opto Isolated VOX PTT. Vox PTT keying which is opto-isolated from the transceiver.
  • Plug and Play. No additional cables required. Plugs into your PC on a free USB port . At the transceiver, connects to the packet/data port.
  • Software Compatibility. Fldigi - WSJT-X - Digipan - Echolink - DM780 and many more.
  • Simple to use. Simple audio level adjustment via operating systems Speaker and Mic level control sliders.
  • Dedicated controls. As you have a dedicated sound card, settings can be adjusted and left as it does not interfere with your standard PC audio settings and levels.
  • Very compact. Interface box is only 80mm x 40mm x 20mm. Sit it behind the radio and forget about it.
  • Compatibility. Suitable for use with many Icom, Yaesu, Kenwood and Wouxon  transceivers. Contact me via eBay to let me know which radio you wish the interface to be configured for from list below.
  • Cable lengths. USB from PC to interface box is 1.5m and from interface box to transceiver 0.6m. (Total length 2.1m). This will allow the interface to sit out of sight using up less desk space.
  • Instruction Manual. We will send the instruction manual to you in PDF format. There is a quick "get you going" guide below.

Transceiver Compatibility List

Xiegu/Wouxon
G90, G106 and X5105


If your transceiver is not on the list above, contact me via eBay to see if we can make you a bespoke version.


A Quick Start Guide (a detailed PDF instruction sheet will be sent to you when you purchase)

  • Plug USB plug into a spare port on your PC. Most operating systems have the C-Media CM108 drivers already installed.
  • Plug Din plug into packet/data/accessory port on your transceiver.
  • Run up your favourite Digimode software and configure it to send and receive audio via the new USB Soundcard.
  • You can use the dedicated Windows sound level sliders for line-out and record-in to optimize the drive levels to your transceiver and in receive
  • Transmit audio is on the Right channel. Left hand channel is used to activate the VOX circuit.
  • Make sure you keep your transmitter out of ALC for optimum PSK31 operation. Keeping your output stage nice and linear is the name of the game when working digital modes.

Who are XGGCOMMS?

We are a small company formed by Steve (G8XGG) and have been trading on eBay since 2006. We sell a large selection of Ham Radio CAT control and Digital mode products for the main ham radio equipment manufacturers. All of our products are assembled and tested in the workshop in The UK. We offer full support on our products and so if you need any set-up help, you only need to send us an eBay message and we will be glad to help out. For our full range of products visit our eBay Shop                

Shipping Policy and expected delivery times

We are based in The UK and use UK Royal Mail Small Packets for all shipments. Our order processing time is no longer than 2 days. The postal service used does not come with any tracking but is generally highly reliable. International shipments are highly dependant on customs delays, holiday periods and local postal services and so can take anywhere from 5 to 23 business days once shipped. If there is no arrival at 28 days, please contact me so we can resolve the issue and re-ship if required. 

Warrantee Terms

All of my products come with a full 30 day satisfaction guarantee and 12 Month warrantee against material failure. If you are unhappy with the product for whatever reason within the first 30 days, I will offer you a full refund of monies paid as long as the interface is returned to me in "As New" condition. In the unlikely event of the product failing in the first 12 months, ship it back to me and we will check and repair the item and send it back to you as new.