I just replaced the feedline on my T6 from the feed point to the top of the
tower (water ingress, similar high SWR). I would start by looking at the feed
point and how the coax was weatherproofed. Also do what Steve sez, put an ant.
analyzer on at that point and then go backwards. Also you can use a dummy load
on the coax (once separated from the antenna) to see if it is indeed bad.
Either way you gotta pull the antenna off or tilt it so you can get to the feed
point, a big pain I know.
Chris
KF7P
On Feb 16, 2012, at 16:14 , K7LXC@aol.com wrote:
> I have a Cushcraft ASL2010, 8 element Log up at 80 feet. All of a
sudden
the SWR went up well over 5:1 on all 5 bands the antenna covers (20-10
meters).
What you need do is start at the antenna and work your way back.
Measure the SWR at the feedpoint and then go back thru the balun, feedline,
switches, etc. Something'll pop out.
It's been my experience that most SWR problems are feedline related.
Cheers,
Steve K7LXC
TOWER TECH -
Professional tower services for hams
Cell: 206-890-4188
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