[CQ-Contest] Weird Bearings on 10/15
Peter Barron
ve3pn at igs.net
Mon Mar 15 05:50:44 EST 2004
Hi All
Here's a DON'T for the TIPS memory bank.
Over the ARRL weekend especially on Sunday I found getting anything like a
rate going on 15m near impossible. I occasionally noticed the beam headings
were way off, the 10M and 15M headings were all over the compass meaning I
was between 20 and 40 Degrees off , with 7 and 5 Element beams it DOES make
a difference. I was probably 6 to 15dB down at target at least.
I have just finished looking into why the beams were off the ARRL Weekend
and all resistances etc were close to as installed values as recorded.
I then decided to remove the control boxes to check them internally (
before going up towers to check clamps etc!!)
BINGO
When I slid the control box off its shelf the meter bearing moved, what the
!@#$#$ (I was off ) I though meter bearing gone but it wasn't the root
cause was the magnets in the !@#$#$ SPEAKER S on shelf above
SO
Don't move a speaker and place it above ROTATOR control boxes with Analog
Meters!!!!
Peter
VE3PN
P.S. !@#$#$ means fill in to your own imagination
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