[1000mp] Strange bahaviour on 80 meters

[1000mp@mailman.qth.net]

Ok, now I understand. Thanks very much, this is the sort
of thing I was looking for, as this is my first experience
with the 1kmp. However, if it were a crack, would the
problem show itself on all bands? In this case, the problem
is only on 80 meters, all the other bands are fine.

cheers, Paul - VA7NT

On Thu, 25 Dec 2003 17:37:03 -0600 1000mp@mailman.qth.net wrote:
> >>Have you tried moving from ANT A to ANT B <or vis versa>
> >>and see if the problem follows?
> >
> >The problem is not affected by the antenna. We switched between
> >different ones with known swr characteristics, and the problem
> >was the same.
> 
> I should have been more clear ... some MPs have been reported
> to have problems with one of the two MP antenna ports ... as in take
> the MP ... and use ANT A into the Alpha ... note the results. Then
> swap the coax over to ANT B <on the MP> and run the same test
> again into the amp ... if the problem changes ... then you may have
> another clue as to where the problem lies. You might also want to
> apply some pressure and/or wiggles the connection, as there's been
> a post or two over the years about the connection just inside the
> MP's connectors developing a hairline crack ... just one more item
> to check and take off the list of what might be the root cause here.
> 
> If the dummy load test is FB ... <and I'd again, check both ports
> of the MP> ... then the problem is back to a questionable coax
> jumper or ???
> 
> MC/HNY
> 
> 73/bc/NU
> 
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cheers, Paul - VA7NT ex VE7CQK - email: paule@sfu.ca
"Those who hear not the music. . . think the dancers mad."