[TowerTalk] [CQ-Contest] 80m delta-Loop coax

Wayne Kline w3ea at hotmail.com
Wed Dec 5 12:32:47 EST 2012


Hello  I for the first time this  low band season I  used RG6   1/4 wave matching transformer on my 160 Delta Loop. ! seems to be  A-OK  and the extra weight on the  ( feed down 1/4 wave from the top apex) side wire is significant . I also  used  the " F - to UHF adaptors at each end . Wayne W3EA 
 > From: Cqtestk4xs at aol.com
> Date: Wed, 5 Dec 2012 11:53:42 -0500
> To: TOWERTALK at contesting.com
> Subject: Re: [TowerTalk] [CQ-Contest] 80m delta-Loop coax
> 
> Been using RG8X and RG11 for 25 years on all my loops for 80 meters.   Work 
> fine with 1500 W.
>  
> Bill K4XS
>  
>  
> In a message dated 12/5/2012 3:09:43 A.M. Coordinated Universal Time,  
> n2mm at comcast.net writes:
> 
> Hello...
> 
> It was 68 degrees today and the 80m delta loop is  up and ready to connect 
> to a 75ohm matching transformer. I know I can use  RG11, but I was wondering 
> if:
> 
> 
> 1. There is a thinner version that  will handle 1.5kw on 80m...ala RG8X?
> 
> 2. Will RG59 handle the  power?
> 
> 3. Any good sources to buy a small piece of RG11 (probably  50ft). Most 
> places sell in bigger quantities.
> 
> 4. To calculate the  length of the transformer, is it 234/f X  VF?
> 
> 
> Thanks,
> 
> 
> Carol
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