The unit was manufactured in Japan and is now a discontinued accessory, primarily found through secondary markets.
Are you planning to use it for or low-band AM nets ?
Enhances receiving capability in FM, enabling 12 dB SINAD.
Pros
You can visually verify if the UI-7 is installed on an IC-725 without opening the case. When the UI-7 board is plugged into the main circuit board near the rear of the unit, it occupies space that blocks some of the ventilation grill openings on the bottom of the radio's rear right side.
Verify that the jumper cables are plugged into the correct ports. Ensure the UI-7 pins are fully seated in the motherboard socket.
Reconnect the power supply and attach an antenna capable of receiving a strong, local AM or FM signal. icom ui7 am fm unit
Best for: Showing off a recent installation and helping other hams.
The Icom UI-7 unit was engineered during a period when Icom designed highly modular radio architectures. It targets a distinct family of popular HF rigs:
Up for sale is a tested and working Icom UI-7 AM/FM internal expansion board . This unit is essential if you want to use AM or FM modes on your classic Icom HF rig. Without this board, the AM/FM buttons on your radio do nothing! Compatibility: Icom IC-725, IC-726, IC-728, and IC-729. Function: Enables AM/FM transmission and reception. Condition: Excellent, pulled from a working environment. The unit was manufactured in Japan and is
Installing the UI-7 was a moderate DIY project for a skilled ham. The official manual outlines the steps:
Common issues in UI7 AM/FM units:
Note: The unit is required for the IC-729 , as that model includes these features by default. Technical Impact Impact with UI-7 Installed TX Power (AM) Typically adjustable between 10–40 Watts. TX Power (FM) Typically adjustable between 10–100 Watts. Receiver System Pros You can visually verify if the UI-7