: Non-magnetic or ESD-safe tweezers for managing small internal cables.
: If your radio supports wide or narrow FM via this module, tune to a local 10-meter FM repeater or a strong signal source to verify the squelch and audio demodulation work correctly. Troubleshooting Common Issues
Look for the main "PLL" or "Main" board. On most compatible Icom models, there is a dedicated, outlined space marked for the optional UI-7 unit.
: Disconnect the power cable and any antennas. Remove the top and bottom covers of the transceiver. icom ui7 am fm unit install
Enables the radio to be used for FM repeaters on the 10-meter band, especially when combined with the UT-20 Tone Encoder . Pre-Installation Requirements Before beginning, ensure you have the following: Icom UI-7 Unit Phillips Head Screwdriver (size #1 or #2) Static-Safe Work Surface (recommended)
Remove the screws securing the and remove the cover.
Icom UI-7 AM/FM Unit an optional internal add-on board that enables AM transmission and FM transmit/receive capabilities for legacy transceivers like the Icom IC-725 : Non-magnetic or ESD-safe tweezers for managing small
Installing the Icom UI-7 is a rewarding project that breathes new life into classic HF rigs like the IC-725 and IC-728. By carefully following these step-by-step instructions, you can successfully add AM and FM transmit and receive capabilities to your transceiver, expanding its utility for everything from working AM mode on 29 MHz FM to having simple, local-communication options on the 10m and 6m bands. While this project is well within the reach of a careful hobbyist, always prioritize safety and, when in doubt, consult a professional. Take your time, secure your connections, and enjoy the new versatility of your upgraded Icom radio.
Some older transceivers require a hard microprocessor reset to recognize newly installed hardware options. Consult your radio's manual for the specific key combination (often holding the M-CL or Function key while powering on) to perform a CPU reset.
Apply gentle, even pressure to seat the board into the socket until it is secure. Do not force it if it does not sit easily; re-check alignment. 5. Securing the Board On most compatible Icom models, there is a
Test the FM function by listening for local 10-meter repeaters or activity. Troubleshooting
Common locations for the Icom UI-7 unit include: