Re: [IRCA] Max. Groundwave Propagation Distance?--Thanks!

[Russ Edmunds <wb2bjh@xxxxxxxxx>]

--- huelbe_garcia@xxxxxxxxxxxx wrote:

> Hi Jeff, Russ:
> 
> The Australian Authority for Civil Aviation has published an
> intersting 
> document named "Operational Notes on Non-Directional Beacons" here:
> http://www.casa.gov.au/pilots/download/NDB.pdf
> 


Both the article and the chart also posted seem to fit well with my
experience and observations DX'ing MW over the years. When one looks at
the geographical distribution of Longwave NDB's in North America, along
with their powers and coverages as reported by DX'ers, that is also
consistent. 

Thanks for sharing these.



Russ Edmunds
Blue Bell, PA ( 360' ASL )
[15 mi NNW of Philadelphia]
40:08:45N; 75:16:04W, Grid FN20id
<wb2bjh@xxxxxxxxx>
FM: Yamaha T-80 & Onkyo T-450RDS w/ APS9B @15'
AM: Hammarlund HQ-150 & 4' FET air core loop


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