[TowerTalk] Stacking a TH7 + 3 X TH6

[Fred Hopengarten]

From:
Fred Hopengarten  K1VR               781/259-0088
Six Willarch Road
Lincoln, MA 01773-5105
permanent e-mail address:  fhopengarten@mba1972.hbs.edu
if sending attachments:  k1vr@gis.net

On Wed, 4 Aug 1999 15:42:06 +0300  markku.a.oksanen@nokia.com writes:
>
>I am putting up a TH7 + 2 TH6 at first (44,35,26 meters up) with third 
>TH6
>added later at 17m.  Does anybody have any comments on the possible 
>effects
>of having a different top antenna?  The feeds are the same lengths an 
>phase
>observed at the beams etc.  The top rotates separate while the others 
>are to
>the same direction (rotatable tower).


Dear Markku:

	I have a TH6 at 97', a TH6 at 61' and a TH7 at 31'. The bottom
one is fixed on EU. When I first installed the system, I had the phase
wrong on the TH7, swapping the two wires from the balun made a dramatic
difference. No one has ever suggested that there is anything wrong with
my mixing of TH6's and a TH7, and it works well.

				Fred K1VR
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