[TowerTalk] Best Coax

[Steve Maki]

Pete Smith wrote:

> >> >  Remember that these dB's are only for Transmitting, not Receiving.

> >>        Hmm. You've got to explain that to me. I thought they were the same
> >> attenuation.

> >Except that on HF, the receiving noise floor is set by band noise; hence,
> >no benefit to extra receive DBs.
 
> Except that the add dB come with more directivity, which *could* have the
> effect of reducing your noise level under some conditions.  For example, my
> 80-meter array is a big help receiving Europe when the thunderstorms are SW
> of me, but less than no help if they are to my NE.

Yep - but the context was coax loss.

I posted my comment without having read all of the thread - where the subject
was covered thoroughly, especially by K6LL. In my experience, he is right. IOW,
the typical HF receiver has a better noise figure than needed.

--
Steve K8LX

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