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Notice:  We are sorry, but MoenComm LLC ceased business operations at the end of 2016.  Matrix Circuits is considering a modified design as a future product.  Please watch this site and the gmsk_dv_node Yahoo Group.   This site will remain as a resource for owners of the products we sold, and I plan to continue providing support as long as it is needed.   I recommend the following alternatives:

Modems and similar devices to create D-Star Hotspots

AMBE 3000

  • ThumbDV(tm) from Northwest Digital - This is a good product and I have used it.  It comes in a very convenient USB stick form-factor.

  • DVMEGA AMBE3000 - This board contains a codec for a speaker/mike or headset.  It is a shield that fits on an Arduino MEGA that connects via USB to a Pi or PC.

Looking for info about the Star*DV AMBE 3000 device?  Click here

MoenComm LLC distributor of Matrix Circuits Star*Board

Extend the D-Star network to your neighborhood!  Start with a D-Star radio, then using this board with an analog radio and a PC with internet, you can connect to repeaters and reflectors around the world.  Learn more and see a diagram here.

bullet Professionally built -- Not a kit
bullet Designed and assembled at Matrix Circuits' state of the art SMT facility
bullet Includes DUTCH*Star firmware
bullet Includes printed User Manual (or download it here)
bullet Price: $119 plus S&H
bullet We have cables: radio cable and different length USB cables


If you have any questions, we'll work with you to be sure you'll be successful in setting up your Hotspot.  Note:  the analog transceiver in a Hotspot ideally will support 9600 baud packet data.  Often Hams have a spare analog radio available, or they pick one up at a hamfest or club auction.  Again, if you have any questions, email them to the address below.

We also encourage you to join gmsk_dv_node on Yahoo Groups -- the most popular email list about GMSK node adapters.


 Star*DV has an AMBE 3000 chip AND a built-in "sound card" codec for speaker/mikes

Install SDV on the Raspberry Pi

Install SDV on Windows

bullet D-Star compatible QSOs without a D-Star radio
bullet Use a PC with internet, plug into the USB port
bullet Codec and connector for speaker/mike
bullet Also available now: the new SDV app for Windows, Desktop Linux and the Raspberry Pi
  • Works with G4KLX ircDDBGateway to establish links to REF/XRF/DCS reflectors, ircDDB callsign routing or CCS callsign routing
  • Supports either a speaker/mike plugged into the Star*DV, or the PC's soundcard and speakers/microphone
  • SDV will optionally work with a GMSK Modem - have QSOs in the shack without a D-Star radio while providing your own Hotspot for outside and mobile access to the D-Star network
  • SDV on Windows and Linux Desktop has a great graphical interface -- supports DPRS maps, callsign and user message display, and easy linking and unlinking
  • SDV on the Pi uses an optional LCD plate with 5 control buttons for linking and configuration -- you can run the Pi headless if you want and still see callsigns, do linking
bullet Available in White or Black
bullet Order the USB cable in your choice of different lengths and colors (does not come with Star*DV)
bullet Inexpensive speaker/mikes available
bullet LCDs for the Pi (built, not a kit), monochrome and not expensive


MoenComm LLC is owned and operated by Jim Moen, K6JM
D-Star® is a registered trademark used for communication equipment (repeaters and transceivers) for amateur radio communications, and owned by Icom Incorporated.

Copyright © 2011-2017 MoenComm LLC & James M. Moen. All rights reserved.