[Lowfer] Hifer Sunday evening

[Dale Parfitt]

John Andrews wrote:

> Dale,
>
> > One quick check from western North Carolina did not reveal the square
> wave- NC
> > is only 100 miles or so from me- hmmmm..
>
> That's pretty close for flea power at 13.5 MHz. I don't see my own signal at
> 140 miles very often.
>
> John A.
>

Hi John,

That was my point- if I  am not hearing it ( with a 20M Moxon) it may be because
it is close in to me. I'll look again tonight after the storms pass.

A question for the collective intelligence here.
This weekend I swapped out my  1 meter dia shielded loop+ Burhans amp for a 2.1M
dia loop. The S/N on some very weak NDB's is easily better. QRN levels are also
up- but not as much as the signals. At what point does increasing loop diameter
not result in meaningful increase in S/N?.
There is a condition on 10 GHz EME where moon noise becomes the limiting factor
on a receive system's noise temperature.Bigger dish does not help.

Dale W4OP