[aprssig] bad PHG, or lots of big towers?

Jason Winningham jdw at eng.uah.edu
Tue Dec 14 10:41:54 CST 2004

> On a topographic map, plot concentric circles centered on your tower 
> location.

Oops, should have said concentric circles at 2, 4, 6, 8, and 10 miles 


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