Best for: Showing off a recent installation and helping other hams.
At first, there was only static. The great, terrible white noise of a dying AM band. He swept through the commercial graveyard: religious ranting, Spanish-language ballads bleeding through adjacent frequencies, the ghost of a sports broadcast from 200 miles away. He was about to turn it off when his thumb slipped, nudging the button—a soft-touch membrane key that most people ignore.
The is an optional add-on board designed to provide AM and FM transmit and receive capabilities to specific older Icom HF transceivers, most notably the IC-725 , IC-726 , IC-728 , and IC-729 .
is an optional internal module that adds AM and FM transmit/receive capabilities to HF transceivers, most notably the Icom IC-725 Quick Installation Guide Installation requires opening the radio case. Ensure the power is disconnected before proceeding. Access the Interior : Remove the top and bottom covers of the transceiver. Mount the Board icom ui7 am fm unit
Turn off the transceiver. Disconnect the DC power cable, antenna coax, and all grounding wires. Let the unit sit for 5 minutes to allow internal capacitors to discharge.
The primary function of the UI-7 is to enable and FM transmission/reception on radios that otherwise only support SSB and CW modes out of the box . It is primarily compatible with: Icom IC-725: A widely used HF all-band transceiver .
The is an optional internal plug-in board designed for specific legacy Icom HF transceivers. Its primary purpose is to expand the functional capabilities of the radio by adding modes that were not standard on the base models. Core Functionality AM Mode: Enables the radio to transmit in AM. Best for: Showing off a recent installation and
Integrates directly with the host receiver's main squelch control for seamless FM operation.
This comprehensive guide covers the technical specifications of the Icom UI-7, its compatibility, installation steps, and alignment procedures to help you maximize your classic radio setup. Understanding the Icom UI-7 AM/FM Unit
These platforms frequently feature estate sales of vintage amateur radio gear. Search specifically for "Icom UI-7" or check listings of broken IC-R71A radios being sold "for parts," as they often contain the valuable UI-7 board inside. is an optional internal module that adds AM
: The board is installed inside the radio's chassis, typically plugging into the bottom area of the main unit.
Some configurations of this transceiver also utilized the UI-7 for expanded mode support.