IC900.3 440 Band - to expand coverage from 420 - 470 MHz: Remove diode D25 (3,D) for RX Install diode in (3,C) for TX VCO in 440 module covers a 20 MHz range - re adjust as needed. 220 Band - to expand TX coverage from 216 - 236 MHz: * This mod hasn't been tried and verified. * Install diode (1,C) for TX Remove diode (2,D) - ? 144 MHz Band - to expand TX coverage from 138 - 174 MHz: Install diode in (1,C) 50 MHz Band - to expand coverage from 40 - 54 MHz: Remove diode D32 (4,B) for RX Install diode in (4,A) for TX 28 MHz Band - to expand coverage from 28 - 40 MHz: Remove diode D33 (3,B) for RX Install diode in (3,A) for TX CONTINUED IN FILE IC900.4