Subject: ICOM IC-701 extended freq. mod. From: Carl Hodder Below are several mods for the Icom IC-701 Transceiver. Please post them on your mod site. Thanks, Carl. ------------------------------------------------------------------- Subject: Extended frequency converage on the ICOM IC-701 HF Transceiver. Grounding pin 14 on the rear panel accessory connector will extend the frequency ranges to: Band - Extended coverage - Factory coverage ---------------------------------------------- 160m - 1.0 - 3.0 MHz - 1.8 - 2.0 MHz 80m - 3.0 - 5.0 MHz - 3.5 - 4.0 MHz 40m - 7.0 - 9.0 MHz - 7.0 - 7.5 MHz 7.3 - 7.5 MHz Receive Only 20m - 14.0 - 16.0 MHz - 14.0 - 15.2 MHz 14.35 - 15.2 MHz Receive Only 15m - 21.0 - 22.0 MHz - 21.0 - 21.5 MHz 10m - 28.0 - 30.0 MHz - 28.0 - 30.0 MHz 29.7 - 30.0 MHz Receive Only ---------------------------------------------- > Subject: Computer control of ICOM 701 via accessory connecter. The August 1984 issue of QST (page 19) has an article on computer controlling the ICOM IC-701 HF transceiver by it's rear panel accessory connector. Although the article describes controlling the radio by a dedicated Three-Chip Microcomputer which can be built for $20 (the cost of the three chips) if you already have some common parts. This project can easily be adapted to control the radio by an IBM PC. Please refer to the QST article for more information. The same interface and control commands also work for the IC-211 and IC-245 transceivers. ---------------------------------------------------------------------- I also heard of a mod using pin #11 (transverter) but can't recall the details. If you know of any other mods for this radio please email me at sba3020@infonet.st-johns.nf.ca All mods are at your own risk, so please be careful. Hope that helps, Carl (VO1XY). ---------------------------------------------------------------------- ----------------------------------------------------------------------