To modify your rig for:
- TX-144 remove R188 (1k) on the display board. 136-174 MHz
- TX-430 remove R187 (1k) on the display board. 420-480 MHz
- TX-1200 remove R186 (1k) on the display board. 1240-1320 MHz
Narrow FM mode for 1200MHz install HD8 1SS355 on the display board.
You do not have to reset the CPU.
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