UDRC

Pi Cases are back in Stock!

The new supplier has shipped cases so we’ll fill all of our backorders this week.

The price has increased to $15 for new orders.

Thanks for your patience.

Pi Cases – Delivery Update

We received the first article from the new supplier and the design needs tweaking so that the tabs will assemble correctly. We have a new sample in process and I’l keep you apprised.

The UDRC-II Enables D-STAR on Many Repeaters

In case you missed the updates on the UDRC Wiki, there are now examples of adding D-STAR using the UDRC-II on many different repeaters:

Universal Digital Radio Controller

Yaesu DR-1X (currently available directly from Yaesu on a special promotion)

Kenwood TKR-750/850

Bridgecom Repeaters (including the 220 band)

Homebrew Systems

Use the message board to share your repeater and hotspot implementations using the UDRC or UDRC-II

If you can get at the discriminator and true FM modulator of a repeater, the UDRC-II gives you a way to add D-STAR.

Pi Cases for the UDRC-II

The Pi cases were designed and supplied by Budd Churchward, WB7FHC. Budd laser cuts the acrylic at a local DIY cooperative here in Washington.

Over the holidays the coop moved and they’re not back on line yet so we are working on alternative suppliers. We should have a first article next week and will be back in stock mid February.

If you have a case on backorder or order one now with a UDRC-II, it will be shipped for free as soon as they arrive.

Check out the Wikis

Check out the Wiki pages for the newest documentation.

AMBE Wiki for information on the ThumbDV™, PiDV™, and AMBEserver

UDRC Wiki for information on using the UDRC™ for applications such as APRS™, dstarrepeater, direwolf, fldigi, and Xastir.

We have more information coming for application users, developers, and experimenters.

Club Discount

The UDRC-II has generated renewed interest in Digital Radio. We were recently approached by a local club that wanted to make a group buy, so we’ve put together a quantity discount program.

Buy 5 of any of our products (they don’t have to be all the same) and receive a 5% discount. Use coupon:

club5

Or receive 10% off on 10 or more. Use coupon:

club10

You must place a single order to one shipping address to qualify.

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.

UDRC™ and Raspberry Pi 3 Compatibility

 

Some users have encountered reliability issues when the UDRC™ is used with a Raspberry Pi 3.

NW Digital Radio has duplicated the problem and isolated its root cause.

Our team looked at different options and after consideration, we recommend the following simple change on the Raspberry Pi. The change can be applied to both the Raspberry Pi 2 and 3.

Edit /boot/config.txt adding the following to the file and saving the change:

force_turbo=1

This will take effect upon rebooting of the Raspberry Pi.

Additional details are available on the UDRC Wiki

9.6Kpalousa

It’s time to move from 1200 bauds (it’s been 38 years).
NW Digital Radio will setup a test bench at the Northwest APRS Summer Gathering (Sep 9-11 at Valley Camp) to help get stations operating at 9600 baud packet.  This is your opportunity to get your equipment up and running on 9.6K packet.
We will have spectrum analyzers and deviation measurement equipment setup to make sure your configuration is optimal.
Bring your 9.6K capable hardware or software TNC, your radio, connection cables, and documentation on adjusting the radio’s deviation and TNC levels.
If you don’t have a 9.6K capability.  We will be offering the UDRC for sale on site (or pre-order).  You need to provide
  1. A Raspberry Pi 2 or 3
  2. A 9600 baud packet capable radio with appropriate cable
    • Mini Din 6 on the UDRC to your radio’s interface
    • We will bring a soldering station if you need to put a connector on a Mini Din 6 cable,
  3. A micro SD Card, preloaded with Compass Linux and direwolf
    • We can load your SD Card on site.
  4. A power supply for the radio and the Raspberry Pi (3A recommended)
There will also be examples of messaging applications as well as APRS applications available for running on the Raspberry Pi.

The $800 Tri-Mode Repeater: UDRC™ + Yaesu DR-1X

John’s Presentation at Hamvention® 2016. (Begins at 0:55)