[Lowfer] Frozen trees ??

[Howell, Laurence J]

I seem to recall a "minimum" radius of 300ft is typically cleared for some MF NDB's. 


Most of the 100W NDB'S Ive put on air over the past few years have been chocked back to 10-15W pep to give us 25nm coverage. 

As we were in a maritime environment I failed completely to find any trees to clear :-> 

Each tree type appears to present different losses whether frozen or not - and I had my favorite tree to haul up Eprobes in warmer climes - Acacia  seemed the best and I avoided Willow and Palms......

Laurence KL 1 X

 

-----Original Message-----
From: lowfer-bounces at mailman.qth.net [mailto:lowfer-bounces at mailman.qth.net] On Behalf Of JD
Sent: Monday, January 07, 2013 7:52 PM
To: Discussion of the Lowfer (US, European, & UK) and MedFer bands
Subject: [EXTERNAL]Re: [Lowfer] Frozen trees ??

Jay, I think your explanation of trees' winter preparation is fundamentally
sound and holds water (pun intended).

>>> One thing for sure, I doubt that any of this is seen at a typical
>>> broadcast setup where there are no trees are in the immediate area of
>>> the antenna.

Well, there aren't _supposed_ to be trees, anyway. :)

I could point to more than a few stations in Georgia where deforestation of
the transmitter site was the first step in getting their coverage back up to
"we used to get out better than this in the good old days" levels.

John D 
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