Tom,

If you use a desk mic with a gain control, you don't even need to worry 
about whether there's a gain control on the radio.  Alternatively, you might 
be able to get someone to build you a box with a 10000 Ohm pot to do the 
job.  I know these aren't good solutions for using the radio in a mobile 
environment, but they would work nicely for a base rig.

Steve

----- Original Message ----- 
From: "T Behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, May 14, 2007 08:24
Subject: Re: changing mike gain on tmv7a


>    Colin and all.
>
> Well, this is interesting, and I'll let you guys know what the Kenwood 
> tech
> says in response to my inquiry.
>
> What Colin is saying makes sense, but at the same time, I find it
> interesting that a company would make a radio that you can't control the 
> mic
> gain on.
>
> Although, come to think of it, HT's are that way--what you hear is what 
> you
> get.
>
> Anyway, will keep everyone posted.
>
> 73 from Tom Behler: KB8TYJ
>
> ----- Original Message ----- 
> From: "Colin McDonald" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, May 14, 2007 6:13 AM
> Subject: changing mike gain on tmv7a
>
>
>>I would beg to differ regarding an internal pot for the mike gain on the
>>tmv7a.
>> If there are any internal pots at all, they control other functions.  The
>> audio
>> gain, both receive and transmit are both controlled by the micro 
>> processor
>> and
>> not controlled by an analog device.  For instance when you use the
>> microphone
>> remote control feature, and use the volume and squelch adjustment 
>> buttons,
>> the
>> radio adjusts those functions, and as soon as you go to adjust them again
>> on
>> the radio, it will default back to what ever it was before you started
>> adjusting from the microphone.  If there was an internal pot that
>> controlled
>> either audio or squelch, this could not be accomplished the way it is.
>> The
>> same holds true for the tx audio.  Since there is an option within the
>> service
>> menu to adjust the tx audio, it wouldn't then also have an internal pot 
>> to
>> adjust since the internal processor is already controlling that function
>> nicely.
>> There are likely surface mount components that could be altered to adjust
>> the
>> gain, in other words, the various information being sent to the 
>> processor.
>> 73
>> Colin, V A6BKX
>>
>
>
>