This sure suggests a computational error in the TOWAIR routine - like
when you do a model in HFTA and a 1-meter change in antenna height
produces a big change in pattern. I think the first thing I'd do is a
manual computation based on a topo map. Measure the distance from the
nearest border of the airport (for a conservative calculation), your
site's altitude, and apply the algorithm given in the FCC reg.
73, Pete N4ZR
The World Contest Station Database, updated daily at www.conteststations.com
The Reverse Beacon Network at http://reversebeacon.net, blog at
On 4/2/2010 6:26 PM, Dick Dievendorff wrote:
> At 6 meters of tower height, I don't need to register. At 7 meters of tower
> I'm suddenly 22 meters too high for the distance from Whidbey NAS.
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