The installation requires running a single jumper wire from pin J3 on the UI-7 unit to pin J5 on the radio’s front panel board. Because used units often ship without this original manufacturer wire, owners frequently have to fabricate their own bridge using generic terminal wire.
The "AM/FM Unit" designation is key. Unlike standard VHF microphones that only handle transmission and reception on marine channels, the UI-7 contains a fully functional AM and FM broadcast band receiver. This allows users to listen to commercial radio stations (weather, news, music) directly through the vessel’s speakers or a connected headset, all while maintaining instant priority access to emergency marine VHF channels. icom ui-7 am fm unit
You might wonder why an FM/AM unit for a 30-year-old radio is still relevant. The answer lies in the unique propagation of the 10-meter band. The installation requires running a single jumper wire
For collectors, having a "fully loaded" IC-725 with the UI-7 (and the UT-20 tone encoder) significantly increases the radio's versatility and value. The answer lies in the unique propagation of
The unit is most famously associated with the following "entry-level" HF rigs:
The installation requires running a single jumper wire from pin J3 on the UI-7 unit to pin J5 on the radio’s front panel board. Because used units often ship without this original manufacturer wire, owners frequently have to fabricate their own bridge using generic terminal wire.
The "AM/FM Unit" designation is key. Unlike standard VHF microphones that only handle transmission and reception on marine channels, the UI-7 contains a fully functional AM and FM broadcast band receiver. This allows users to listen to commercial radio stations (weather, news, music) directly through the vessel’s speakers or a connected headset, all while maintaining instant priority access to emergency marine VHF channels.
You might wonder why an FM/AM unit for a 30-year-old radio is still relevant. The answer lies in the unique propagation of the 10-meter band.
For collectors, having a "fully loaded" IC-725 with the UI-7 (and the UT-20 tone encoder) significantly increases the radio's versatility and value.
The unit is most famously associated with the following "entry-level" HF rigs: