[TowerTalk] TowerTalk Digest, Vol 110, Issue 42

EZ Rhino EZRhino at fastmovers.biz
Thu Feb 16 16:11:21 PST 2012


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 at 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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