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Kit TNC for HF and VHF packet radio. 300 through 9600 baud. The kit is by TARPN which is a ham radio packet network advocacy group, sold without profit -- order board and CPU from TARPN for cheap. Order the remainder of the parts from Mouser or your preferred local supplier.

Terrestrial Amateur Radio Packet Network An ever expanding group of Amateur Radio operators are working together to use many VHF/UHF radios to link multiple ham radio stations in a digital network for the purpose of having fun in a fun, educational, hobbyist-controlled environment, built using ham radio infrastructure based on packet radio technology.

This page describes a project involving repurposing the Weathalert receiver for controlling a radio club's beacon system remotely. The author details the modifications made to the receiver, including changing the crystal frequency and adding a DTMF decode chip and PIC for remote control. The project aims to enable the turning off of beacons to prevent interference, with plans to control each beacon and the Packet Radio digi. The article provides insights into the technical aspects of modifying the receiver and showcases the author's experimentation with different crystals for optimal performance.