There is an active community of radio amateurs dedicated to hacking the Quansheng UV-K5 and variants. I count myself as one of them. In the linked article I show how to modify the hardware and […]
Hacking the UV-K6 for Digital Modes
Category: Hacking
Hacking the TNC hardware, firmware and tools.
A $30 Mobile APRS Radio
The Motorola Radius SM-series radios are discontinued land-mobile radios (FCC Part 90) that are available used for under $50. The VHF models can be converted to work on the 2m band, making them an inexpensive […]
Test Fixtures
The test fixture created for programming and testing the TNC3 has been a great time-saver. Pogo pins on the test fixture mate with test points on the bottom of the TNC3 PCB. These are then […]
AFSK Demodulation
We recently posted a description of the demodulation technique used in the Mobilinkd TNC3 on our GitHub page: https://github.com/mobilinkd/afsk-demodulator/blob/master/afsk-demodulator.ipynb The post includes a complete demodulator written in Python. Note that GitHub does not render the […]
Arduino KISS TNC
Create a Mobilinkd TNC on a breadboard for just a few dollars. The Mobilinkd TNC1 started its life, as with many things these days, as an Arduino project. It quickly took on a life of […]
Check Out the Code on GitHub
Be sure to check out the Mobilinkd GitHub repositories. There you will find source code for the TNC firmware, including the bootloader, as well as the configuration tools.