That 3 db (or so) comes to about 1/2 of a "S" unit- still not usually enough
to make, or break you. and even it can be mitigated by preamp on the tower
, in the recieve direction. signal would have to be pretty far in noise
(close to 10dB above mental tepathy :>) ) for this loss to kill much . as
info, jim nn7k
Red sent:Subject: Re: [Towertalk] Newbie Question
> Troy;
>
> 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!
>
> 73 de WO0W
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