[TowerTalk] Six meter balun

[Jim W7RY]

Agreed.

RG-400 works well to. The only difference between RG-142 and RG-400, is 
that RG-400 has a stranded center conductor. RG-142 has a silver plated 
solid hard drawn copper center conductor.

73, Jim W7RY


On 7/2/2022 6:09 PM, john at kk9a.com wrote:
> The 50MHz power average rating for RG142 is several kilowatts, why do you
> think it is inadequate?*If it is a balun problem it is most likely connection related.*
>
> John KK9A
>
>
>
> Dave Sublette k4to wrote:
>
> My six element 6M LFA is showing a high SWR and severe loss of receive
> signal.  This happened this afternoon as I was working the band with 500
> watts from my KPA500.
>
> To this point, the antenna was very nicely matched with a 1:1 SWR over
> almost 1 MHz of bandwidth. The antenna is home brew and I made the matching
> balun per the instructions from K9YC using two toroids with six turns each
> of high quality teflon insulated, double shielded silver braid. I think it
> was RG142 purchased new from a reputable vendor in Tennessee. It has worked
> perfectly at the 100 watt level for three or four years.  I had looked at
> the specs on the coax and thought it would be good for 500 watts.
> Evidently not.
>
>
> 73,
>
> Dave, K4TO
>
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