Re: [amsat-bb] Flexible Coax

[Bruce Nolte N3LSY <brucenol@xxxxxxx>]

Kenneth M. Brockel wrote:

>Just a thought, Has anybody ever tried the coax from the Wireman called
>"CQ Flexi 4XL"? It is there product number #102 and I have used it for
>several now and it works great. I have never had any problems with water
>ingression or other related problems. I use this product all over my
>shack for my VHF,UHF & HF installations. If interested, check out: 
>
>http://www.thewireman.com
>
>73, de Ken, N2SMT
>
>  
>
>>-----Original Message-----
>>From: owner-AMSAT-BB@AMSAT.Org 
>>[mailto:owner-AMSAT-BB@AMSAT.Org] On Behalf Of Bill Acito
>>Sent: Friday, October 18, 2002 11:29 AM
>>To: amsat-bb@AMSAT.Org
>>Subject: [amsat-bb] Flexible Coax
>>
>>
>>Another "ping" to the group...  going through the ads, there 
>>seems to be many, many different coax types available today, 
>>and a lot of new coax "model" numbers out there (I haven't 
>>really kept up since LMR400 and 9913 flex).
>>
>>I'm looking for recommendations on a flexible coax with the 
>>least loss at UHF (432). It will not be buried.
>>
>>Thanks,
>>
>>Bill
>>W1PA
>>
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>>    
>>
>
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>
>  
>
A strategy that has served me well for six years has been a triple layer 
approach: After assembling the connection, I mold a piece of Coax Seal 
around the joints of the connection.  The second layer is a layer of 
something called "Bishop Tape" which is a self-vulcanizing rubber tape. 
I learned this trick from a CATV installer, who used this for buried 
splices. Bishop Tape forms a continuous rubber boot around the 
connection, but has the disadvantage of being vulnerable to degradation 
by UV. I top off the whole assembly with a layer of common electrical 
tape, such as Scotch Temflex 33, which protects the Bishop Tape from UV.

I have had no problems with water intrusion on any of my coaxes 
protected with this method, and I have had my tower up for six years, 
despite the use of some makeshift connectors to terminate some runs of 
CATV Hardline. I use.


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