[TowerTalk] RFI Radius vs Ant Height

[K8RI on TowerTalk]

> Its been a very long time since I ran an HF KW from a residence.  At a new
> QTH, I am contemplating doing so, using a yagi on a tower, say at 60 ft. 
> I
> am now at a fairly dense subdivision, shown here on a google map.
> See:

If you run it through an RF calculator you will find the higher you go the 
smaller the circle at ground level for a given intensity.

OTOH for some strange reason the number of RFI complaints seems to be 
proportional to height/visibility.


>
> Click on:
> http://maps.google.com/maps?f=q&hl=en&q=Rocklin+CA&ie=UTF8&ll=38.780237,-121.260095&spn=0.004023,0.010815&t=h&om=1
<snip>

Roger Halstead (K8RI and ARRL 40 year Life Member)
N833R - World's oldest Debonair CD-2
www.rogerhalstead.com (Use return address from home page)