[TowerTalk] Fwd: Strange etc

[Gedas]

As an astronomy geek and astroimager I use a number of different ways to align an assortment of VHF/UHF etc antennas. You can look up the exact azimuth bearing of the sun, or moon, or Venus etc, etc, etc and simply stand back from the tower and line up the boom to that object. I have also done so dozens of times using the north star and have no trouble shinning a flash light up an 85' tower to see the booms and Polaris at the same time. Even bright stars etc can be used. So pretty much, day or night, even with light cloud cover you have many ways to get aligned in a matter of a few minutes. 

Gedas, W8BYA 

----- Original Message -----

From: "Hans Hammarquist via TowerTalk" <towertalk at contesting.com> 
To: towertalk at contesting.com 
Sent: Friday, January 27, 2017 10:14:11 AM 
Subject: [TowerTalk] Fwd: Strange etc 


I like that method. Will try it. 

I have one problem though, you will have the time for the solar noon at that day but you will only know it after the day is over. As the solar noon changes a little every day you don't know what it is the next day. You might be off by several part of one degree. :-) Just kidding! 

I think your method is way good enough for most if not all our purposes. If you need it better you have to get a gyro compass. That will show the true north, but how picky do you want to be? 

73 de, 

Hans - N2JFS 





-----Original Message----- 
From: Ed Karl <edk0kl at centurytel.net> 
To: towertalk <towertalk at contesting.com> 
Sent: Thu, Jan 26, 2017 9:40 pm 
Subject: [TowerTalk] Strange etc 

A. The time between local sunrise and sunset is solar noon, in North 
America is in the middle. 

Therefore any shadow point to True North. 

B. With most HF antenna having 3db points for the forward lobe having 
the smallest angle of 30 degrees 

why are we picking nits over finding magnetic north away from buildings 
and the deviation that day to 

compute True North to get 1 degree accuracy? 

To me on a circuit to ZS or G, it's "good enough" with the old sundial 
method from here in Missouri. 

Or what am I missing?. 

73! 

ed K0KL 

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