[TowerTalk] TOWAIR query - proximity to airport, FCC and FAA registration

Pete Smith n4zr at contesting.com
Sat Apr 3 04:06:06 PDT 2010


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 reversebeacon.blogspot.com


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.


More information about the TowerTalk mailing list