[1000mp] Power Folding Back

[Billy Cox]

Jerry, try this next ... change from ANT A
to ANT B <or vice versa from what you are
using it> and see if the same thing happens,
as in you get HIGH SWR on both ANT positions.

 ... if it does NOT, as in ANT x is OK, but
ANT Y is not, then take the top of the cabinet 
off and look very carefully at the SOLID wires 
that goes from the back of the SO239s down to 
the PCB there.

Over time a hairline crack can occur, and/or
one connection go open ... one fix is to just
reheat the connections, another idea is to 
replace the solid wire with stranded ...

<and to prevent this from reoccurring, try not
to put much stress on those connectors ...>

First though ... let's see if this is really
the root cause or not.

If this is a dead end, what happens to the
HIGH SWR light if the power is set very low,
say 10 - 25 watts, any difference?

Hope this helps, please let everyone know
what you can find as having this in the 
archives might help someone else someday.

73 de Billy, AA4NU


-----Original Message-----
>From: Jerry <grf at uneedspeed.net>
>Sent: Jun 22, 2008 1:37 AM
>To: 1000mp Mail Group <1000mp at mailman.qth.net>
>Subject: [1000mp] Power Folding Back
>
>Hi  All:
>My old 1000mp decided to give me fits while transmitting. Receive is 
>fine on all bands, but I have very high SWR into a dummy load on all 
>bands. Tuner makes no difference.  Any ideas where I might begin to 
>locate the problem?
>Tnx for any help you might be able to give me.
>Jerry France
>K7LY
>Lake Havasu City, AZ
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