Universal Digital Radio Controller 2 Port

SKU: 602401903623 Category:


Universal Digital Radio Controller II


  • Raspberry Pi HAT Compliant
    • 40 Pin Header (Pi 2 or 3 only)
  • 12V to 5V 3AMP Voltage Regulator
  • TI 3204 DSP Sound Chip
  • PTT and COR Interface
  • HD15 Pin Connector
    • Interface to Yaesu DR-1X Repeater (The DR-2X is not supported at this time.)
  • Mini DIN-6 Connector
    • HF/VHF/UHF Radio Data Port

Open Source Applications – Supported by Others:

  • dstarrepeater (and optionally ircddbgateway)
  • DIREWOLF 1200/9600 AX25

The UDRC-II™ is a Raspberry Pi HAT containing all of the necessary hardware to directly interface to a radio or repeater.

The UDRC-II™ is compliant with the Raspberry Pi HAT Specification and has the ID EEPROM which directly loads the device table for the UDRC™ on boot up. The Ideal Diode circuit allows the Pi to be powered by either the Micro USB jack or external 12VDC.

Direct Connection to the Yaesu DR1-X Repeater is available with the HD-15 Cable and adds D-STAR Capability to your Fusion Repeater. This cable must have all 15 pins wired straight through.

Alternatively the Mini DIN-6 Cable can be used to connect to the Data Port on a standard HF/VHF/UHF Radio. This cable must have all 6 pins wired straight through.

Wiki for Applications and Interfacing

Note: ARMv6 Raspberry Pis are not supported.  This includes the A/A+, Zero, Pi 1 B/B+, and Compute Module. Supported devices are the Raspberry Pi 2 B and Pi 3 B.

Additional information


HD-15, DIN-6, none