Mark wrote:
Sideband,

You are spot on!

After I sent this message, I replaced the desk mic with the original Uniden
mic and all was well. So I put the desk mic back on and same problem. Then
I realised the mic transmit lock-down lever was part way down, turning off
the receiver, but not quite turning on the transmitter!

Mark.

"SideBand" wrote in message
. ..

Mark wrote:

Hi,

I have a Uniden Grant running as a base station, with a Leson power desk

mic

connected.

I heard a station loud and clear just now, and I keyed the desk mike to
reply. Probably only transmitted for about two seconds, long enough to

say

"Hello there, loud station".

But now the reception volume is incredibly low. Either on the internal
speaker or with an external speaker connected. You need to turn the

volume

pretty much flat out and then can only just make out the audio.

I discovered that my young daughter had wound up the knob on the Leson

desk

mic to about three-quarters the way round. I usually have it on about

one

notch out of ten, something like that.

I suspect that I've fried something inside with such a large power

setting

on the desk mic. Is this feasible? Have I literally overloaded the
transmitter by having the desk mic power so high? And why would that

cause a

problem with the receiver audio output?

Thanks for any ideas!

Mark.



Try re-keying the mic.. If you have dirty contacts in the mic, the
receive won't work on the radio...

Failing that, try a different mic.

Failing that, something is wrong with the radio.

-SSB



Well, I'm glad it wasn't dirty contacts. I wasn't aware your mic had a
lock lever, or I would have suggested checking that, as well!

Electrical tape on the lock lever to keep it "unlocked" might be
advisable. Glad you got it figured out.

73

-SSB