Expand RX for the EUR version: By key funktion: * Switch off the radio. * Push the [V/MHz] (for VHF), and [SET] and [DN] on microphone at the same time, while turning on power. By diode: * Remove D17 diode on the logic board. * Do a full reset by switching off the radio. Then while pushing [SET] + [SPCH], turn on the radio. After either mod, you will have: 118,000 - 135,995 MHz AM 136,000 - 174,000 MHz FM 320,000 - 479,000 MHz FM 830,000 - 950,000 MHz FM (Needs extra coaxial cable to receive anything) Expand RX for the USA version: * Cut W1 jumper wire on logic board. After mod, you will have: 118,000 - 135,995 MHz AM 136,000 - 174,000 MHz FM 320,000 - 479,000 MHz FM