[CQ-Contest] 4O3A Tower Height

[Maciej Wieczorek]

Bill,

I heard you many times this winter on 40m and the signal was amazing, very 
often much over s9, so I can assure you the 40m beam is working preety well, 
despite it's 90 foot tower, not 120 ;-)

But I have also one question about stacking tribanders - did anyone here 
tried a *wide spaced* tribander stack and could share some experience?

I'm preparing a new tower here and because of the the type of the tower (and 
few other factors) I am considering 2 antennas wide spaced, not 3 antennas 
spaced eg. 10m/30ft like most people do.
This is also because my 13/22m actual stack doesn't work at all on 20m.
I'am on a flat terrain here.
In this case, "wide spaced" means 2 tribanders with long booms @16/31 meters 
( abt 45/90 ft) in vertical stacking. So, the spacing seems too wide for 
28MHz (abt 1,5 wavelenght), and in fact modeling shows some high angle 
lobes, but how about real life?


73's
Mac SP2XF / SN2M
----- Original Message ----- 
From: "Bill via CQ-Contest" <cq-contest at contesting.com>
To: <cq-contest at contesting.com>
Sent: Wednesday, April 25, 2018 11:20 PM
Subject: Re: [CQ-Contest] 4O3A Tower Height


>
> I concur with ZM4T.
>
>
> In KH6 we are limited to 90 foot towers.  It really doesn't make much 
> difference on 20-10 meters.  With the huge drop to NA, EU and JA anything 
> higher would not be very effective.  How do I know?  My bible (HFTA) tells 
> me so.  Anyone not using this tool who lives on uneven ground is cheating 
> themselves from having the best signal possible.
>
>
> On the other hand I wish I could get the 40 meter Yagi up to 120 since 
> this seems to be the sweet spot, but I can live with what I have.
>
>
> Bill KH7XS/K4XS
>
>
>
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