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MCX1000 Annoyance

Posted: Thu Dec 07, 2006 2:11 pm
by w4rez
I have recently acquired a VHF MCX1000. No matter how I set this radio up, it emits a short beep from the speaker every time I key the mike. I originally thought this might have something to do with MDC1200/600 signaling but I checked and both of these options are disabled. This radio also has a crypto board in it, so is it possible that it's beeping at me to warn me that I'm transmitting in the clear when I key the mike? How do I get rid of this most annoying sound?

Posted: Thu Dec 07, 2006 2:44 pm
by dxon2m
I've never worked with MCX1000 RSS before but most of them will identify it as "TX CLEAR TONE", or something similar to it.

Posted: Thu Dec 07, 2006 10:05 pm
by w4rez
dxon2m wrote:I've never worked with MCX1000 RSS before but most of them will identify it as "TX CLEAR TONE", or something similar to it.
Yeah I thought there should be something like that in the RSS too but if there is, I'm blind. I also have a UHF MCX1000 but it does not have this problem.

I have double checked to make sure that I did have MDC turned off and I even disabled all of the crypto options since I don't need them....same thing.

Anybody else got any ideas?

Posted: Fri Dec 08, 2006 4:45 am
by Duke
W4rez, Is your radio an ex Coast Guard marine VHF? I've got one that does exactly the same thing but never got around to trying to disable it. I agree that it is an indicator to the operator that the radio is in the clear and not encrypted.

Posted: Fri Dec 08, 2006 6:35 am
by 601
The MCX1000 I have does it also. I was going to disable it, but changed my mind. I thought it was a good audible indicator the radio is transmitting, preventing dead-keyups. Kinda like the MDC alert tone, but not nearly as annoying.

Just my thought....

ANd yes, the radio I have has encryption also.

Posted: Fri Dec 08, 2006 7:21 pm
by dbrock411
For you guys with the former Coast Guard MCX1000's, have you ever tried reading it with the special marine version RSS to see if it's got a setting that the regular version doesn't have?