[SBE] hole in heliax

[Reynolds, Paul (CXR-San Antonio)]

Ahhhhh !  You have a bad line.  Get rigger to cut out a section then.
Cut it once above the upper hole nice and square.  Examine interior.
Then some how, some way, remove enough clamps on the lower part to where
it will loop out and down so you can cut off about 10-20' so the 'chips
will fall out...not down into the flex.  Examine and make decision if
you need to cut more out etc.  Hope you can find a couple splice kits
for it.  Like one of the other guys said, you have to keep cutting any
smoked/carboned flex until it is clean.  Keep us posted...

Paul K. Reynolds, C.E.
 paul.reynolds at coxradio.com
 

-----Original Message-----
From: sbe-bounces at sbe.org [mailto:sbe-bounces at sbe.org] On Behalf Of Gary
Blievernicht
Sent: Wednesday, August 06, 2008 2:56 PM
To: sbe member discussion mail list
Subject: Re: [SBE] hole in heliax

these are big holes about a dime in diameter.  the network analyzer
measured it as an "open" 330 foot from the test point.




>>> "Reynolds, Paul (CXR-San Antonio)" <Paul.Reynolds at CoxRadio.com>

8/6/2008 15:14  >>>
I first suggest you drill about a 1/8" hole at the lowest point to see
if any water runs out.  If it does or doesn't, then plug the hole with
epoxy or the like, wrap it tightly and pressurize a little.  Try your
transmitter again slowly.  I would be curious as to the 'size' of the
hole if it's blow out, lightning hit or bullet sizes.  Don't forget to
also epoxy the 1/8" hole you drilled at the bottom ! 

Paul K. Reynolds, C.E.
 paul.reynolds at coxradio.com 
 

-----Original Message-----
From: sbe-bounces at sbe.org [mailto:sbe-bounces at sbe.org] On Behalf Of Gary
Blievernicht
Sent: Wednesday, August 06, 2008 1:56 PM
To: sbe member discussion mail list
Subject: [SBE] hole in heliax

We have two holes in the 3" (air) heliax run to our stand-by antenna.
The antenna is at the 500 foot level on our tower, the holes are about
six feet apart at about the 300 foot level.  Might have been lightning?
Might have blow out when we applied power on Friday for the first time
in months? .  The line had been holding pressure until last Friday, so,
I'm figuring it blew out.  

Wonder if we should just splice out twenty-five feet of heliax or if we
should, at considerably more expense, replace the entire run.

Or try the splice and see what happens?

I can send anyone a pair of pictures if you are interested.




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