Icom Ui7 Am Fm Unit Install -
The Icom UI-7 AM-FM Unit is an optional internal expansion board that adds AM transmission and FM transmit/receive capabilities to select Icom transceivers, most notably the IC-725, IC-728, and IC-729. Without this unit installed, these radios are typically limited to SSB and CW modes for transmission. Installation Procedure
: Never transmit in FM or AM without a properly matched antenna, as it can damage the transceiver. icom ui7 am fm unit install
: Connect the cables from the radio's main board to the corresponding J21 and J22 points on the Front Panel Link : There is a connection point ( intended for a brown wire that links to The Icom UI-7 AM-FM Unit is an optional
Final Checklist for a Successful UI7 Install
- [ ] UI7 mounted away from RFI sources.
- [ ] OPC-2359 connected between UI7 and ID-5100 faceplate.
- [ ] Dedicated AM/FM antenna installed >18" from ham antenna.
- [ ] 3.5mm audio cable in "EXT SP" jack.
- [ ] 12V power fused and grounded to chassis (not radio negative).
- [ ] ID-5100 menu set: Connectors > External Unit > UI7.
- [ ] Tested AM reception at night (Skywave test) and FM stereo with "Hi-Fi Mode" engaged.
Carefully remove the screws and set them aside in a small tray. [ ] UI7 mounted away from RFI sources
Availability: As an older accessory, the UI-7 is typically found as a second-hand unit through specialty retailers like Radioworld UK or amateur radio marketplaces.
- Carefully seat the UI‑7 module onto the mainboard connector or into the slot, ensuring pins line up and insert fully but gently.
- If the module uses screws or standoffs, fasten them snugly without over‑torquing.
Securing: Some models include a small screw hole to lock the UI-7 in place. If your kit included a screw, install it now to prevent the board from vibrating loose. Reassembly Once the board is seated, it is time to close the unit.
