After a close friend lost the ability to speak due to a stroke, I dreamed up this Raspberry Pi project.
Blog post with more information and source code here:
Adafruit budget pack deal on the Pi Zero here:
And the Raspberry pi org tutorial project I built upon for this device.
ES-4 COMES AS A CONTROL UNIT AND A BASE (SWITCHING) UNIT THE BASE UNIT RECEIVES 12V POWER AND HAS ALL THE HEAVY COAXIAL CABLES CONNECTED TO IT. THERE IS ALSO PROVISION FOR CONNECTING UP TO 3 PTT AND UP TO 3 ALC CABLES (OPTIONAL, IF USED O... Read more
The BTECH DMR-6X2 is the most versatile dual-band DMR radio available. Designed for both amateur and commercial usage with its large, bright 1.77″ color TFT display.The DMR-6X2 can store 4,000 Channels with 10,000 Talk Groups and 150,... Read more
Jim makes and then shows his tunable half wavelength dipole antenna. Using an antenna analyzer, Jim finds the resonant frequency and the lowest SWR do... Read more
The Doctor offers advice about antenna options for the upcoming ARRL Field Day. Read more
The Alaskan antenna is meant for those who live in the higher lattitudes and need a little more gain. For us mere mortals who live in the lower 48 of... Read more
RT3S dual band digital radio uses Digital Mobile Radio (DMR) Tier 2 Standard protocol. It is compatible with the popular MOTO TRBO series Tier I and I... Read more