The is an optional internal plug-in board designed to expand the operational capabilities of specific classic Icom HF transceivers . While many modern radios include these modes by default, the UI-7 was a critical aftermarket addition for several popular "entry-level" models from the late 1980s and early 1990s . Purpose and Compatibility
: As this is a legacy component, it is no longer in production but can frequently be found at second-hand retailers like Radioworld UK or amateur radio equipment forums. icom ui7 am fm unit
Converts the receiver to a for FM signals (compared to double-conversion for standard modes). FM Sensitivity Typically around 0.5 μVmu cap V for 12 dB SINAD on the 28 MHz band. Market Availability The is an optional internal plug-in board designed