Has anyone ever heard of this problem!
My systems saber squeals out of the speaker, and I cannot find the problem, This just started and the radio tX and RX fine! Only RX audio has this problem, I would figure the speaker but its fine! Even the case is ok!
ANY IDEAS out there would be helpful thanks!
I use this radio for Amateur bands and for Search and Rescue!
Squeqling noise from VHF systems saber 3
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- fire_master_21
- Batboard $upporter
- Posts: 694
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- What radios do you own?: Motorola/Kenwood
Sounds like some component has become "microphonic".
That means that it is picking up vibration from the speaker
and that is affecting the way the circuit works. Kind of a
feedback loop happening. I would first open the radio and
see if there is a module loose just enough to cause this.
Maybe carefully re seat them in their sockets. also look at
screws that hold a couple of them in place through the
mother board. Carefully make sure they are snugged up
but not over tight. Do a general inspection for something
out of place or shifted in a way that would allow speaker
vibration to make circuitry vibrate with it. A few clues
to help you , is it more of a problem at high volume
and do you have a speaker mic you could try on it.
That will prove that is a microphonic component or it is
a microphonic caused by maybe a bad solder joint or
similar such thing. Hope this may help, Phrawg
That means that it is picking up vibration from the speaker
and that is affecting the way the circuit works. Kind of a
feedback loop happening. I would first open the radio and
see if there is a module loose just enough to cause this.
Maybe carefully re seat them in their sockets. also look at
screws that hold a couple of them in place through the
mother board. Carefully make sure they are snugged up
but not over tight. Do a general inspection for something
out of place or shifted in a way that would allow speaker
vibration to make circuitry vibrate with it. A few clues
to help you , is it more of a problem at high volume
and do you have a speaker mic you could try on it.
That will prove that is a microphonic component or it is
a microphonic caused by maybe a bad solder joint or
similar such thing. Hope this may help, Phrawg
BBbzzzzz... ZAP.. GULP !!! ahhhh GOOD fly !
Thank you
Yes this happens at high volume!
I will take the radio apart and do a visual inspection
Thank you for the fast reply
Larry
I will take the radio apart and do a visual inspection
Thank you for the fast reply
Larry
Thanks again
Thanks guys,
Its always a pleasure to deal with the experts!
I will check the unit this evening
Larry
Its always a pleasure to deal with the experts!
I will check the unit this evening
Larry