[Towertalk] Newbie Question
Thu, 18 Jul 2002 14:01:08 -0400
At 12:44 PM 7/18/02 -0500, Red wrote:
>Normally I'd agree that heliax is overkill on HF, but suggest you check
>the attenuation of any coax, expecially on 10 and 15 meter. Ordinary RG-8
>loses about 1.2-1.3 dB per 100 feet at 30 MHz. That amounts to 3 - 3.25
>dB for 350 feet; half the power!
But 75-ohm 3/4" CATV hardline is just a hair lossier than 7/8" Heliax at 30
MHz (.3-.35 dB/100 ft), can often be bought for free, and lends itself to
inexpensive connector fabrication.
73, Pete N4ZR
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