TH25AT.3 TH-25AT MARS/CAP MODIFICATION The following modifications will allow the TH-25AT to transmit from 141.000 to 162.995 MHz. Specifications are guaranteed for the Amateur band only. The transceiver may require realignment of the PLL circuits. 1. Disconnect battery pack and antenna. 2. Remove the volume, squelch and tuning control knobs by pulling them straight up from the top panel. 3. Using a 7mm spanner wrench, remove the nut from the volume control and the nut from the tuning control. 4. Remove one screw from the back of the radio, by the PTT switch. 5. Remove one screw near the speaker jack. 6. Remove two screws from the battery terminal plate: --- remove ---- / \ +---------------------+ [ 0 0 [ [ [ [ +------+ [ [ [ [ [ [ +------+ [ [ [ [ O O [ +---------------------+ CONTINUED IN FILE TH25AT.9