Outline This device is a dual-band 144/430MHz FM car transceiver planned and designed for amateur radio communications and has the following features. 1. Has a built-in TNC which conforms to the AX.25 protocol. With a portable computer, allows you to enjoy Packet operation quite easily. 2. Includes a program for dealing with data formats supported by Automatic Packet/ Position Reporting System (APRSJ. 3. Is capable of receiving packet data on one band while receiving audio ...