For some reason my K9AY lost it's directivity, seems to receiver well in
> all directions.
>
> Bill
> WA4FKI
> _______________________________________________
>There are other problems that can cause a pattern that doesn't change. Some
>of these include burned out terminating resistors due to nearby lightning or
>transmitted RF, a corroded or broken connection from the loop to relays or
>to the ground rod, or a failure somewhere in the control wiring that keeps
>the relays from switching.
>73, Gary
>K9AY
Those corrosion/poor connection issues can be subtle too - i.e. barrel
connectors
splicing 2 lines together have been a source of problems for me. In fact the
corrosion can be
tentative- in my case I've noticed an problem, but the MFJ analyzer on the line
and note the
SWR quickly jumps DOWN to normal from a higher state. Then when I recon the
antenna to the rig all
is OK. Seems the small signal from the analyzer is enough to "burn" thru the
corrosion but it
would come back in a week. I had a poorly assembled PL259 - even taped it would
develop this
problem over time until I replaced the connectors properly attaching them to
the lines. But the point
should be well taken that connection quality will drastically hit the feedline
performance which is
critical to RX antennas. Pete W2PM
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