Open Mic Inside The Radio?

[-.-. --.-N3TU -.-. --.-]

Anyone have this problem with an open mic inside the radio? When I am on 52.795 mhz, I get a signal of s-3 and when I turn up the volume, it squeals. I can actually speak through the bigger "grille" opening on top of the radio and hear myself. I can't hear any weak signals on that frequency because it is getting covered up. Any way to resolve this issue?

[-.-. --.-N3TU -.-. --.-]

I forgot to mention that I can receive stations and have the mic on the front of the radio working fine. It stays "hot" all the time inside the radio.

[Don Wilhelm-4]

Do you see the red TX light on?  If so, you are in transmit and the
monitor volume is too high.  Perhaps something has closed your PTT circuit.

I could also suspect an RF Feedback problem.  Give us more details about
the state and conditions under which you observe this.  Is it really
frequency dependent?

73,
Don W3FPR

-.-. --.-N3TU -.-. --.- wrote:
> Anyone have this problem with an open mic inside the radio? When I am on
> 52.795 mhz, I get a signal of s-3 and when I turn up the volume, it squeals.
> I can actually speak through the bigger "grille" opening on top of the radio
> and hear myself. I can't hear any weak signals on that frequency because it
> is getting covered up. Any way to resolve this issue?
>  
>  
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[oe9fwv]

hi,

-.-.  --.-N3TU -.-.  --.- schrieb am 3 Oct 2008 um 18:46:

> Anyone have this problem with an open mic inside the radio? When I am on
> 52.795 mhz, I get a signal of s-3 and when I turn up the volume, it
> squeals. I can actually speak through the bigger "grille" opening on top of
> the radio and hear myself. I can't hear any weak signals on that frequency
> because it is getting covered up. Any way to resolve this issue? -- View
> this message in context:

it is not an open microphone but a birdie that is microphonic.
all K3's I have seen have some birdies, some are very loud like yours and
some are so low that they disappear in the noise when an antenna is
connected.
Open the top cover and touch or come close to the  board with oscillator and
you will know where the "microphone" is seated ;-)

73! de Werner OE9FWV

--
"Handle so, dass die Maxime Deines Willens jederzeit zugleich als Prinzip
einer allgemeinen Gesetzgebung gelten könne."
Imanuel Kant


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