Tnx Don
I think you may have hit the nail on the head. I DO have to reduce the
volume greatly when using the headphones. From my perusal of the schematic
for the K2, it looks like if I changed R36 it would change the AF level on
both the speaker AND the phones...NOT what I *think* I want. It looks like
R35 (a 82 ohm resister) is in line with the AF feed for the phones. Does
this look right??
On Phones I use a sidetone level of 25...on speaker I use a sidetone level
of 140....is it possible to deduce from this what a good value of resister
would be for R35??
TNX for the help!! 73...de...Fred N9TA
___________________________________________________________________________
Fred,
Since you are reducing the setting of the AF gain control when changing from
headphones to the speaker? If so, that is the reason in a 'nutshell' - the
level of the sidetone is not controlled by the AF gain.
So, if you set the sidetone level to be correct for your speaker volume,
then it will be too loud when you reduce the AF Gain for use with the
headphones.
I would suggest that you try increasing the value of R35 and R36 on the K2
RF Board so you do not have to reduce the AF Gain as much when using the
headphones - or switch to a less sensitive set of headphones.
You can also just change the sidetone level in the menu (assigned by default
to the PF1 button) when switching from speaker to headphones.
73,
Don W3FPR
> -----Original Message-----
>
> My wife often invades my shack to watch TV while my son plays
> Xbox on the TV
> in the living room. I plug in my headphones while she is watching
> TV so that
> the noise won't bother her...(and the noise from the TV won't bother
> ME)...But when she's gone I unplug the headphones and use an external
> speaker. I have noticed a VAST difference in the sidetone volume between
> headphones and speaker. I must turn DOWN the volume a BUNCH when using the
> headphones....but then when using the external speaker the sidetone is
> almost completely silent. I adjust the volume for comfortable listening
> levels with both the headphones and the speaker...but the sidetone volume
> seems to change between the two.
>
> Is there a cure for the difference in sidetone levels??
>
> 73...de...Fred N9TA
>
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