[TowerTalk] Tower height increments

W3YY w3yy at cox.net
Sat Oct 16 03:40:13 EDT 2004


Warren -

Using HFTA and modeling a 2-el 40-m beam over flat ground, the lobe moves
from an elevation angle of about 29 deg at 69ft to 25 deg at 79ft.  It's
probably not worth going through a lot of extra work to obtain this change.

73, Bob - W3YY

----- Original Message ----- 
From: <WarrenWolff at aol.com>
To: <towertalk at contesting.com>
Sent: Saturday, October 16, 2004 7:15 AM
Subject: [TowerTalk] Tower height increments


> Greeting fellow TTalkers,
>
> I have an interesting question.
>
> Does anyone know what happens to the radiation lobes for a 40  meter yagi
> when it height above the ground is changed from 69 feet to 79  feet?  It
> boils down to whether or not the extra 10 feet is really worth  it --- or
the
> potential hassle from a City Engineer for the extra 10  feet.
>
> Regards,  Warren Wolff; W5KKW
>
>
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