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:
Or receive 10% off on 10 or more. Use coupon:
You must place a single order to one shipping address to qualify.
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.
- 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.
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:
This will take effect upon rebooting of the Raspberry Pi.
Additional details are available on the UDRC Wiki
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
- A Raspberry Pi 2 or 3
- 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,
- A micro SD Card, preloaded with Compass Linux and direwolf
- We can load your SD Card on site.
- 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.
John’s Presentation at Hamvention® 2016. (Begins at 0:55)
Shipping will be shutdown starting June 22nd. Orders placed after that will ship when we re-open on July 10th.
There is a new Wiki entry on using the UDRC™ on packet radio with the direwolf soundcard TNC
See: Wiki Post
Using the UDRC™ + Raspberry Pi 3 + 7″ Touchscreen Display + a FT-817 (or other radio) makes a great little desktop Xastir based APRS viewer.
We have just published the Instructions at
UDRC™ install for DR-1X Wiki Page
Members of the NW Digital Radio team just returned from Hamvention® 2016 in Dayton, OH.
We had a Yaesu DR-1X repeater setup on 440+ running System Fusion Digital, Analog FM, and D-STAR using the UDRC in conjunction with the DR-1X’s internal controller.
The booth is located very close to the exit of the main Yaesu booth and a lot of folks passing by noticed the repeater and when the functionality was shown, most who owned a DR-1X immediately purchased one or more UDRCs.
Xastir + Direwolf were also demonstrated using a FT-817 transceiver and UDRC board. This combination can be configured and operated at either 1200 or 9600 baud packet.
Software and instructions for the UDRC will roll out in the next few days. It was necessary to repackage the Compass extension to Raspbian due to changes made by the Raspbian development team. All users of the UDRC need to use the Compass distribution as their operating system to support the necessary drivers. The code will be available as open source via Github for those interested in the enhancements. Also, please use the Compass distribution for dstarrepeater package if using the UDRC for D-STAR either as a hotspot or as part of a repeater.
More to come in the coming days and weeks.
We would especially like to thank our UDRC beta testing team for valuable field experience and feedback.