[Kenwood] TS-850S/AT Power output??? Low??

[John Tait]

Subject: [Kenwood] TS-850S/AT Power output??? Low??

Hi Joe..

My gut reaction is that you have a problem with one of your High pass, or
Low pass filters.....Or the control circuit that selects them...i.e.
the74LS145 decoder chip.

          Good luck with it OM
               73
                  John EI7BA  http://www.iol.ie/~bravo/



> I bought my TS-850S/AT new about 10 years ago.  Out of the box 10 and 15
> meters power output was low.
> About 70 and 80 watts.  I adjusted VR7 on the RF Board for 100 watts on
> 10 meters and all was well.
>
> But during the SARTG RTTY contest last weekend when we had some activity
> on 10 and 15 meters, I noticed that
> the output on those two bands were lower than normal. So I borrowed a
> Bird Wattmeter so make sure of the
> readings.  I tried to adjust VR7 again, but there was no increase in
> power.  This what I measure. I wonder
> if other 850 owners have about the same output as I?  Is there anything
> besides VR7 to adjust??

>
> Power Control Full CW, Carrier Control Full CW, Mode FSK, all set from
> the front panel.  Bird wattmeter and Heathkit dummy Load.
>
> 28.500 MHZ  85 Watts
> 24.850      90
> 21.225     110
> 18.100     120
> 14.175      94
> 10.115     160
>  7.150     155
>  3.775     155
>  1.850     180
>
> I have almost never operate below 20 meters, but when I do, I always set
> the carrier for 100 watts or less.
>
> Any Help or suggestions?
>
> Joe K0BX
> - - -
>
> Your moderator for this list is:
> Larry Wilson KE1HZ kenwood-owner@mailman.qth.net
>
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