[TowerTalk] Rotor loop coax

Steve Maki lists at oakcom.org
Sun Aug 19 22:47:21 EDT 2018


I'm trying to to figure out what was wrong or hard to understand about 
Jim's answer? I've seen many examples of poor quality cables with 
*RG213* stamped on them...

-Steve K8LX

On 08/19/18 17:39 PM, Jim wrote:

> Oh for Pete's sake Jim!
> 
> He asked a simple question. He is referring to cable with RG-213 stamped on
> the side of it like he could buy from DX Engineering or ABR enterprises!
> 
> 
> He did not ask HOW TO BUILD RG-213 from pieces of small copper wire!
> 
> No wonder the information in your papers is so difficult for the average ham
> without an engineering to understand.
> 
> 
> Really read what I have just sent you above.... Then flame on if you wish.
> 
> 73
> Jim W7RY
> 
>   
> 
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Jim
> Brown
> Sent: Sunday, August 19, 2018 1:16 PM
> To: towertalk at contesting.com
> Subject: Re: [TowerTalk] Rotor loop coax
> 
> On 8/19/2018 10:07 AM, Terry Brown wrote:
>> Is RG 213 the best and most flexible coax to use
> 
> In general, RG-numbers are not a specification for coax. Rather, they define
> little more than the characteristic impedance and approximate physical size.
> This has been true for at least 50 years.
> 
> The only meaningful way to specify coax is with a reputable manufacturer's
> part number and data sheet for it. I agree with others that Davis BuryFlex
> is a good choice for this application.
> 
> 73, Jim K9YC



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