[Lowfer] Hifer Sunday evening

[Mark Fields]

   Dale, what is "moon noise"?

                                            73, Mark

On Mon, 04 Aug 2003 17:13:59 -0400 Dale Parfitt <parinc@gte.net> writes:
> 
> 
> 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
> 
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> 

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