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Feedback on PA Speaker - Uniden UM525 VHF

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Feedback on PA Speaker - Uniden UM525 VHF

Old 07-08-2014, 08:10 PM
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Default Feedback on PA Speaker - Uniden UM525 VHF

I've had this issue for years and never could figure it out, but new piece of info this weekend may help. I have a Uniden
UM525 Fixed mount VHF with hailer and fog horn functions. I have a horn style PA speaker mounted on my arch. The fog horn functions play loud and clear from the VHF thru the speaker with no issue. If I try to use the hailer, and i turn the volume up past one, or even talk too loud, I get speaker feedback / Mic feedback.(Like when a mic is too close to a speaker).

Since Foghorn worked, I just put it on the back burner. This weekend I was playing with it and realized that the PA is somehow acting as a mic as well. I.e. I was in cabin with curtain down, and my wife was on the deck talking, and i could hear her thru the VHF speaker as if she was being picked up by the PA Speaker on the deck..

Any thoughts?
Old 07-09-2014, 06:26 AM
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Take the mic down from the clip and let it hang. Worked for me.
Is your PA speaker behind you on the arch? That could do it.
Old 07-09-2014, 06:49 AM
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Mic too close to horn speaker.

"Talk Back" or "Listen" feature of the hailer has nothing to do with the feedback.
Old 07-09-2014, 08:25 AM
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Originally Posted by Bluebird1 View Post
Take the mic down from the clip and let it hang. Worked for me.
Is your PA speaker behind you on the arch? That could do it.
A little behind me and facing backwards. Basically just above and behind the passenger seat. How can this work on any boat then? I assume most guys PA's are within 10' +/- of the mic, right? I cant let the mic hang down if I'm talking on it..
Old 07-09-2014, 08:54 AM
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Yeah mine is a little different I have an E-box on my hard top. When the mic is clipped on the e-box its feedback city. Anyway I think Crabpot man is right.
Old 07-09-2014, 08:34 PM
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Can't have the hailer horn on the arch probably. Need to move the horn to the foredeck, pointed forward, away from the mic.

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