Icom ID-51 Official MARS Expanded TX & RX Mod

Here is the official modification to expand both the TX and RX capabilities of the Icom ID-51:

RX frequency expansion

A BAND
VHF: Expanded frequency range: 137.000‐174.000MHz. (FM/FMN/DV)
UHF: Expanded frequency range: 380.000‐479.000MHz. (FM/FMN/DV)

B BAND
VHF: Expanded frequency range: 108.000‐136.995MHz. (AM), 137.000‐174.000MHz. (FM)
UHF: Expanded frequency range: 380.000‐479.000MHz. (FM)

Remove D9 on Logic board.

TX frequency expansion
VHF: Expanded frequency range:...

Icom ID-51 Official MARS Expanded TX & RX Mod