Ham Radio Projects
My WB8WGA Simple Inexpensive TNC for APRS
My WB8WGA Simple Inexpensive TNC circuit with new firmware to use with a 18B20 temperature sensor, and GPS+Status beaconing while in GPS mode..
This project is about building a frequency counter, using a 2x16 LCD and a small PIC 18F1320 micro-controller for a AM/FM 47-860MHz wide band receiver.
TNC2-CT Terminal Node Controller @ 1200bps or 9600bps
(I'm searching for the schematics)
A TNC is a Z80-based single-board computer which is connected to the serial port of a computer. It has a small on-board modem and a Z80 core with memory and SIO. The Z80 runs a program that implements the AX.25 protocol used in amateur packet radio.
The aim of this project was to develop a TNC capable of connect to multiple RF modems and running a wide range of existing software. It was developed in 1991 by CT1DMK and CT1DIA.