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VX-427 Problem

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LunaEros

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Jul 19, 2021
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Newton, NC
I got a used VX-427 I want to use at work with their system. I’ve seemed to figure out most of their system as in the frequency, modulation mode 11K0F3E (which I figure is determined by power setting, the other my radio uses is 16K0F3E), etc. I also got the programming cable and software for it. But I just figured out another issue the radio has and am not sure if it’s some setting I can’t find. I also have a BaoFeng I can use to listen to it and realized that when I first key the VX I hear a carrier and when I try to talk it sounds muffled almost like distortion or something solid over the mic but discovered if I keep it keyed up, after 5 seconds it sounds like the mic turns on and I can hear fairly normal.
Does anyone have any idea why it might do that? Could it be a setting or is something wrong with the unit?
 

radiotweester

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Dec 21, 2006
Messages
501
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Oregon
11 is narrowband 2.5kHz deviation, 16 is wideband 5kHz deviation You're muffled because you're listening for a 5k voice where there's only 2.5k. I'm guessing you're using a 427-4-5 and not the 427A LTR version? On UHF narrowband is the STANDARD for UHF 450-470 and most VHF 150-174. In the CE-64 software set the W/N to N and if you're still quiet, go to Common -> Power Saving -> Mic Gain and set it to +6
Using the noise cancelling mic can also cause that.
 

LunaEros

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Jul 19, 2021
Messages
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Location
Newton, NC
I know it's not the bandwidth because after about 5 seconds or so keyed up it works fine. And it's not the Mic Gain either because it does the same whether it's set on standard or +6db.
 

radiotweester

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Joined
Dec 21, 2006
Messages
501
Location
Oregon
:unsure: I'd stick it on a service monitor. It's not what everybody has in their cave, but it would be the best thing to see what's going on with power/time and deviation.
 
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