If you have success with any of these modifications, please drop me a note to let me know your experiences. Update 11/09/2020: Added section on adding CW KEY and PTT lines using a USB to Serial RS-232 port. The 30 year old ICOM HF radios still have a bit of life in them if given [...]
Tag: IC-751a
Comparing RTL-SDR and IC-751A Receivers Using JT65 & JT9 Signals
Once I had the RTL-SDR radio working as a pan-adapter for my IC-751A, I quickly became interested in seeing what I could do with all of those signals that were apparent on the SDR radio's waterfall. My first goal was to see if I could receive the complete JT65 and JT9 signal band, with [...]
RTL-SDR Pan-adapter using HDSDR with the IC-751A
There is little doubt that the RTL-SDR tuner dongle radio receivers are the hottest new thing for the amateur radio experimenter. Re-purposing the $10 tuner dongle to be an extraordinarily wide-band software defined radio is the subject of countless internet articles and videos. Here I am adding my experiences to the crowd. What I will describe [...]
Comparing Receivers with Digital Mode Signals
I entered second heaven when I got my second radio. My original 32-year-old Icom IC-745 got placed on the back shelf when the new 29-year-old Icom IC-751A arrived. As much as I enjoyed the old IC-745, I was after a little computer control, and the 745 predates the idea that people use computers. The 751A, [...]
Squash Practice 