TM221x01.txt    9600 baud packet information and connections.

TM221x02.txt    Final module hints.

TM221x03.txt    Extended range for the TM-221.

TM221x04.txt    Fix for no transmit in high power due to voltage drop.

TM221x05.txt    Simple mod to extend transmit/receive from 138 to 154 Mhz.

TM221x06.txt    General coverage transmit.

TM221x07.txt    Expand transmit from 142 to 152 Mhz.