Thats true William,
But the highest point in West TN is 665 feet @ Pilot Knob over in
Benton County on the Tennessee River. The lowest point is near 180
feet along the Mississippi River.
The casual APRS'r isnt going to know the HAAT, but I have found the
tower height works fairly close down here. Now up in your neck of the
woods your exactly right, 200 feet on a tower, but sitting next door
to a 3000 foot mountain definately is going to cause the PHG to sway
I too have found that even with an omni antenna, but with a huge
change in terrain like from a mountain you can change the OMNI setting
on the end of your PHG to reflect gain in a certain direction, away
from the mountain also brings the PHG fairly close.
If anyone needs help figuring HAAT instead of tower height, let me
know and I will try to locate topo maps to help out.
Thanks for the tip William,
-- In email@example.com
, "William McKeehan" <yahoo-mail@m...> wrote:
> I would note that the Height in PHG is HAAT (Height above average
> terrain). In East TN, you can be at 4700 feet ASL and only be 2000
> feet HAAT, so for us the difference is major; it may not be as
> significant in West TN, but something to be aware of none-the-less.