: Installation involves plugging the board into the bottom of the radio and connecting several internal cables to specific headers (typically J21, J22, and a link to the front panel J5). Expansion Synergy : Users often paired the UI-7 with the UT-20 Programmable Tone Encoder
Enables the radio to transmit in AM mode (usually 25 watts of carrier power).
Allows the radio to transmit in AM mode, typically at a reduced power of 10–40 watts. Enables FM Transmit/Receive: icom ui-7 am fm unit
: If you see clear, open slots leading directly to the main circuit board, the UI-7 slot is empty. If you see a distinct plastic cover backed by foam causing a visible reflection, the UI-7 AM/FM unit is securely installed. Finding and Buying a UI-7 Unit Today
As a specialized accessory for a specific generation of radios, the Icom UI-7 is now considered . It is no longer manufactured and must be sourced from the second-hand market (such as ham radio swap meets, eBay, or specialty forums). : Installation involves plugging the board into the
With the rise of Wi-Fi-enabled VHFs and app-based control, one might ask if a wired AM/FM handset is obsolete. The answer is a resounding . In the marine environment, physical knobs, buttons, and dedicated hardware remain superior for several reasons:
. While these radios were marketed as "all-mode," they initially lacked full AM and FM capabilities out of the box, requiring the UI-7 to unlock these features. Core Functionality Enables FM Transmit/Receive: : If you see clear,
The is an internal, optional plug-in board designed for older Icom HF transceivers. Its primary function is to enable AM transmission and FM transmission/reception capabilities that are otherwise disabled in the base radio. 📻 Core Purpose
Even premium gear can have glitches. Here are solutions to common user problems.
At its core, the is a dedicated remote control microphone and audio distribution unit . However, calling it simply a "microphone" would be a gross understatement. The UI-7 is a sophisticated combination of a Class-D DSC (Digital Selective Calling) handset, a secondary station controller, and an integrated AM/FM radio receiver.
Installing an authentic UI-7 requires a standard anti-static workspace and careful internal electronic handling. No complex soldering is required: Second Hand Icom UI-7 AM/FM Unit - Radioworld UK