Hi Staved;

The ICOM 208H has a high and low setting for the mic gain in the menu.

It helps in a mobile setting.

73 De Anthony W2AJV
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ECHOLINK NODE NUMBER: 74389

  ----- Original Message ----- 
  From: Steve Dresser 
  To: [log in to unmask] 
  Sent: Monday, May 14, 2007 11:15 AM
  Subject: Re: [BLIND-HAMS] changing mike gain on tmv7a


  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
  >>
  >
  >
  >