|Subject:||[TowerTalk] Trees, Mountains, 15 degrees...|
|From:||"Pat Barthelow" <firstname.lastname@example.org>|
|Date:||Mon, 24 Jan 2005 11:16:19 -0800|
SNIP: Jim Woods Said:
From: "Jim & Velma Woods" <email@example.com> Also, a few miles away is a mid-sized mountain which is east of my site. I used a topo map to determine that the top of the mountain forms an angle about 15 degrees above the horizon. Is this high enough to be a concern? Thanks for your input. Jim, W7PUP firstname.lastname@example.org
15 degrees above the horizon is a very large vertical angle. I checked what 15 degrees means at 3 miles and computed an elevation difference of about 4000 feet, in 3 miles.
Just to check the math, is your mountain to the east, 4000 feet higher than you are?
If so...it will be a problem for low angle DX signals, as previously mentioned.
73, de Pat, AA6EG email@example.com
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
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