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Re: Topband: Elevated Feedline for RX

To: "Jo, YC0LOW" <>
Subject: Re: Topband: Elevated Feedline for RX
From: Herb Schoenbohm <>
Date: Mon, 20 Sep 2010 13:21:45 -0400
List-post: <">>

On 9/20/2010 8:57 AM, Jo, YC0LOW wrote:
> But, the site is located almost 500 meters from my shack. And, I can only 
> elevate the
> feedline (Belden RG6-U) because the housing developer restricts me to
> bury the coax.
> I have no experience in elevating feedline such long for RX antenna
> (only had it for few meters when it's crossing the road).
> Need your advices/suggestions to make it alright. I may be the first
> to use this array in YC-land and hopefully will be able to receiving
> better on topband, soon. TIA es 73 de Jo, YC0LOW.
> _______________________________________________
> Jo,  Try to use cable TV spec RG6 which has a solid steel messenger cable as 
> part of the assembly.  Some call this figure 8 cable and it is used for all 
> weather house drops from pole to house.  Some carry a floding compound that 
> stops the ingress of moisture.  1500 feet on RG6 on 160 meters should not be 
> more than 1 db or so...but having a good working antenna that can hear is 
> everything.  You might take care however and not running the cable in close 
> parralel proximity to AC drops and even long CATV runs as a precaution to a 
> Farraday effect that could perhaps induce noise into your antenna.  This, 
> however is easy to check and test, and you can make some small ferrite 
> isolators ala W8JI to break up common mode issues. Hope to work you this 
> season.
73, Herb Schoenbohm, KV4FZ
UR RST IS ... ... ..9 QSB QSB - hw? BK

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