Icom Ui7 Am Fm Unit -
The Icom UI-7 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.
FM Support: Adds both transmission and reception for the FM mode.
2. Key Specifications (Typical)
| Parameter | Details | |-----------|---------| | Frequency range (FM) | 76 – 108 MHz (varies by region; typically 87.5–108 MHz) | | Frequency range (AM) | 522 – 1629 kHz (or 530–1710 kHz for US market) | | Power supply | Supplied via connected Icom unit (e.g., 13.8 V DC) | | Audio output | Routes through external speaker / control head | | Antenna connection | Separate AM/FM antenna port (often via BNC or SMA) | | Interface | Data/control via Icom proprietary cable (e.g., OPC-xxx) | | Compatible with | Icom IC-M400BB, IC-M510, IC-M605, select land mobile consoles | icom ui7 am fm unit
Elias looked at the clock on the wall. It was 3:16 AM. He had listened for two minutes. His nose was bleeding again. And the room was no longer silent. The generators had stopped. The only sound was a low, deep hum coming from beneath the concrete floor.
The Icom UI-7 AM/FM Unit 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. The Icom UI-7 is an optional add-on board
Avoid the UI7 if:
The Icom UI-7 is an optional internal expansion board designed to add AM and FM transmission capabilities to classic Icom HF transceivers. While many of these radios feature AM and FM buttons on their front panels by default, they often require this physical module to actually transmit in those modes. Core Functions Control volume and station memory directly from the
- Control volume and station memory directly from the Icom CommandMIC (handheld remote mic).
- Receive "DSC Mute" – When a Distress call comes in on Channel 16, the UI7 automatically mutes the music so you can hear the emergency.
- Display station info on your Icom VHF screen.
Best for: Showing off a recent installation and helping other hams.

