[Kenwood] TS-950S Question

[Steve London]

I have a 950SDX, rather than a 950, but these comments may apply..

If you are putting out 200 watts max, rather than 150, there is a pot inside the 
  radio that needs to be adjusted. The finals are too expensive to risk at 200 
watts. While you're at it, there is another pot that may need to be adjusted to 
correctly set the high SWR foldback. All of this is in the service manual.

As far as the power ramp-up problem, check the ALC level at 100 watts. If there 
is no ALC reading, then the CAR adjustment on the front panel needs to be turned 
up until there is some ALC reading.

As far as your comment "There's no VSWR so it shouldn't be foldback", that's not 
quite a proper way to say that. What I really think you meant to say was "The 
SWR is close to 1:1, so there shouldn't be any foldback".

73,
Steve, N2IC


Rob Atkinson, K5UJ wrote:
> 
> that's right, I don't know much about the 950 but I know it's a 150 w. 
> rig.  if ur getting 200 w. out something's wrong.   It might be the way 
> u measure ur power or the rig.   I have never owned the 950 so beyond 
> this I can't help but maybe someone familiar with it will.
> 
> 73,
> 
> rob / k5uj
> 
> From: Darrell Drake <va3dg at rogers.com>
> To: 'Kenwood' <kenwood at mailman.qth.net>
> Subject: Re: [Kenwood] TS-950S Question
> Date: Sun, 9 Sep 2007 03:16:20 -0400 (EDT)
> 
> I have a TS-950SDX and there's no way I can get 200
> watts output, just the rated 150 watts. And varying
> the power output is smooth, not the least bit erratic
> as what you describe.
> I'd say there's something running amok in your radio,
> as in imminent self-destruction.
> 
> Cheers....
> Darrell,
> VA3DG/VE3DDG
> 
> --- "Rick Markey, KN3C" <kn3c at arrl.net> wrote:
> 
>  > I've been storing my father-in-law's TS-950S (not
>  > the SDX) and he asked
>  > me to get it out of the box and put it on the air
>  > just to make sure it
>  > still works.  Now I've used 440's, 450's, 480's,
>  > 830's, 850's and 870's,
>  > but have never played with the 950.
>  >
>  > I fired up the rig, put it in the FSK mode and keyed
>  > it into a dummy
>  > load.  I got 200W no problem.  I cranked the power
>  > back to 100W and
>  > that's when I noticed something I thought was odd.
>  > When I key up the
>  > rig, the power jumps up to maybe 40W, and then
>  > slowly ramps up to 100W.
>  > Takes maybe 2 seconds to come up to full power.  If
>  > I set the rig back
>  > up to full output, the power jumps up to 200W
>  > instantly with no ramping.
>  >
>  > There's no VSWR so it shouldn't be foldback.  Is
>  > this normal behavior?
>  > I want to use the rig on the air, but that power
>  > ramp up is going to be
>  > an issue when running vox.
>  >
>  > Any words of wisdom from the 950 owners.  Break-in
>  > is set to semi, not
>  > full.
>  >
>  > de Rick, KN3C
> 
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