[Collins] Re: {Collins} Reducing the output power

Kurt Keller kkeller1 at comcast.net
Fri Apr 22 16:41:01 EDT 2005


Jim:

I think I have a solution, but want to throw this out to the group for 
their comments  You could
disable the screen grid voltage which is what they do if you are running it 
with a 62S-1 to drop the
power way down. The RCA plugs are on the back to do this, but you would 
have to use a device that
could handle the voltage and the current.

Kurt Keller




At 03:58 PM 4/22/2005, Jim Isbell, W5JAI wrote:
>I would like to use a ICOM AH-3 antenna tuner with my KWM-2 in mobile
>service.  I can build a control circuit to make the tuned do it's
>thing but I need to have the output of the transmitter to be less than
>10 watts while its tuning.  Yes I could back off on the gain, but I am
>concerned that I might just "forget" someday.  So I want to activate a
>relay in the control box that can close..OR..open a contact to a line
>going back to the KWM-2 to a circuit that will drop the output to 5
>watts, no matter what the gain control is set to.  That way it will be
>automatic, just punch the button and wait till its done tuning.
>
>Anyone have a suggestion as to the best way to do that in the KWM-2
>with a single line (that could be taken to ground, or to ground thru a
>resistor or to +12 or to +12 through a resistor, some of the options)?
>--=20
>Jim Isbell
>"If you are not living on the edge, well then,=20
>you are just taking up too much space."
>W5JAI
>UltraVan #257
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