UDRC-II and the Process of Continuous Development

The great thing about Software is that you can improve it continuously. Here at NW Digital Radio, we view Hardware the same way. Each time we build out a PCB Fabrication run, it’s only engineering time and new solder-paste stencil charge to make any improvements. So we re-evaluate each product, looking for ways to make it better or appeal to a broader market.

Now that we’ve shipped hundreds of units, we’ve updated the UDRC based on feedback from the field.

UDRC-II Changes:

  • PTT and SQL are now independent and buffered on both ports making it a true 2 port controller
  • LEDs have been added to both PTTs and the 5V converter (only lights if wired to 12V)
  • The 12V to 5V converter has an RFI Filter and Transient Protection for Mobile Applications
  • The Audio Inputs and Outputs are now 100 ohms to improve cable matching
  • The EEPROM version allows the driver to auto-configure for the UDRC or UDRC-II

The UDRC-II starts shipping once we have all the documentation updated. All existing backorders will ship UDRC-II. The original UDRC will be obsoleted.

Limited Time Offer for all UDRC Owners!

If you’ve already purchased a UDRC, place an order for a UDRC-II by the end of September and receive a $20 Rebate. Just write UDRC Rebate in the comment field. Your email address must be in our Customer Database to qualify.

5 Responses to UDRC-II and the Process of Continuous Development

  1. John b cundiff W3JBC says:

    What is a URDC ?

    • k7udr says:

      Hi John,

      I added a link to the datasheet for you

      Bryan K7UDR

      • John b cundiff W3JBC says:

        Does not say what URDC stands for …does it ?

      • John b cundiff W3JBC says:

        What do it do ? I R A Purdue U graduate so use one or two sylable words .

      • k7udr says:

        Hi John,

        As it says in the Datasheet, UDRC stands for Universal Digital Radio Controller. It’s a Raspberry-Pi HAT (Hardware Attached on Top) that provides the interface to 1 or 2 radios. The on-board sound chip and PTT (Push To Talk) circuitry handles the radio. It has been tested with Direwolf software TNC (Terminal Node Controller) at 1200 and 9600 bps (bits per second) so you can use application software for Winlink Mail or APRS (Automatic Packet Reporting System). It is functionally similar to a Tigertronics SignaLink.

        It can also be used with the Yaesu DR1-X repeater to add D-STAR (Digital Smart Technologies for Amateur Radio) capability. You can also build a D-STAR Hot Spot.

        You can read more about it by searching our website for UDRC.