|To:||"Richard (Rick) Karlquist (N6RK)" <firstname.lastname@example.org>,"TowerTalk List" <email@example.com>|
|Subject:||Re: [TowerTalk] Take off angles, VOACAP, etcf.|
|From:||"Guy Olinger, K2AV" <firstname.lastname@example.org>|
|Date:||Sun, 17 Oct 2004 23:05:59 -0400|
The problem with the experiment is that which mode is open, or how
MANY modes are open and which one(s) being used, may not be
determinable or selectable unless both ends have an antenna with a
very narrow vertical aperture.|
The typical ham yagi stack comes nowhere near the required narrow vertical aperture.
Also, if one digs around trying to find an iron-clad proof that a take-off angle of 15 degrees produces an incoming angle of 15 at the other end, one comes up empty. As best I can tell, that's an assumption. Not blatant in the sense of irresponsible, just that there's nothing else to do. If you don't pick equal angles, what DO you pick and why?
This problem continues to revert to the general lack of ham available narrow angle transmitting and receiving equipment. If we had the stuff, we'd just MEASURE the angles and all the speculation would cease.
----- Original Message ----- From: "Richard (Rick) Karlquist (N6RK)" <email@example.com>
To: "TowerTalk List" <firstname.lastname@example.org>
Sent: Sunday, October 17, 2004 10:40 PM
Subject: RE: [TowerTalk] Take off angles, VOACAP, etcf.
Has the following experiment been tried?
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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