I have two DigiRig Mobiles configured to CI-V that I use interchangeably with my IC-7000 and TIDRadio HTs.
I’ve just order via Amazon a Yaesu FTM MiniDin10 Cable – digirig in the 9600 baud audio+PTT+serial configuration to use one of the DigiRig Mobiles with my Yeasu FTM-500DR.
From what I can tell, if I want to use the serial cable for CAT control (9600 baud audio feature isn’t impacted either way?), I’ll have to change one of my DigiRig Mobiles to RS-232; correct?
IF I mistakenly use the serial cable of the RS-232 configured DigiRig Mobile on my IC-7000, or conversely the CI-V configured DigiRig Mobile on my FTM-500DR, will I do harm to either the radios or the DigiRig Mobiles? I don’t plan on doing this of course, but it could happen…
RS-232 does not use the conventional 0 and 5V levels implemented in TTL and CMOS designs. Drivers have to supply +5V to +15V for a logic 0 and -5V to -15V for a logic 1.
so whether a radio can/cannot handle the mismatch, i be concerned
i’ve only lost one ci-v port (ic-736) in over 30 years but i’d hate to lose another.
@K0TX might have more insight but for me, i’d label the differing bits with dayglo colors
Thanks @webmonkey; I like the dayglo colours suggestion!
I suspect that RS-232 voltage levels wouldn’t be tolerated by the CI-V DigiRig, but the opposite probably wouldn’t hurt anything
If I understand the operation correctly, there won’t be any issues if I only use the audio jack of the DigiRig Mobile to the FTM-500, with RTS for PTT control regardless if it’s CI-V or not. As the FTM-500 doesn’t support CAT there really isn’t any reason to connect the serial cable to the FTM-500…
If I’m correct in my understanding (and what I ass/u/me) that leaves just the IC-7000 as the only radio in my collection that supports CAT, so likely I can just leave my two DigiRig Mobiles as is.
That being said, I’ll wait to hear what Denis has to say before I proceed.
Given that when using the DigiRig Mobile there are no CAT advantages (that I know of) with the FTM-500, I don’t need to connect the serial cable to the DigiRig Mobile.
Rather than change the signaling from CI-V to RS-232 on one of my DigiRig Mobiles in case I accidently plug the serial cable into the DigiRig Mobile and likely fry it with RS-232 levels, I came up with a hack to prevent connecting the serial cable into the DigiRig; an unterminated female TRRS jack connected to the DigiRig FTM-500 serial cable male TRRS jack.
