[TowerTalk] Stacked tri-banders vs. Single mono-banders

[Dave Raymond-CSUS04]

Well. . . I can't help but jump into the fray.

I have a 3 high stack of TH7s at 40'/80'/120' on a 130' rotating Rohn
55.  I fully realize what the modeling says about stacking distances.
Theoretically, the performance of my stack should not be very good,
particularly F/B on 15 and 10.

All I can say is that I get beat in very few pileups. . . the stack is a
real performer (and I'm not trying to brag).  F/B, even on 10, is very
good (over 20 db).  I have done side by side comparisions with 3 and 4
high stacks of DX Engineering monobanders at our local contest station
with the differences being imperceptible.    With monobanders, I would
have 3 times the number of antennas and probably have to have at least 2
towers (,aybe 3) instead of one. . . that's a lot of hardware.

As ON4UN told me once when I was modeling something that didn't look so
hot, "don't let the modeling numbers necessarily stop you from doing
something. . . they're not always right."

73. . . Dave
W0FLS

> ----------
> From:
> w2xx@cloud9.net%INTERNET[SMTP:w2xx#064#cloud9.net%INTERNET@email.mot.c
> om]
> Reply To: 	w2xx@cloud9.net%INTERNET
> Sent: 	Friday, January 23, 1998 9:58 AM
> To: 	k1vr@juno.com%INTERNET
> Cc: 	henry@rio.com%INTERNET; towertalk@contesting.com%INTERNET
> Subject: 	Re: [TowerTalk] Stacked tri-banders vs. Single
> mono-banders
> 
> > A TH7 is the equivalent of a 3 el
> > beam on 20 and 15, a 4 el beam on 10.
> > 
> 
> Yah, but you'd still be LOUDER with an equivalent stack of
> small monobanders, such as the F-12 series and without the
> compromises of stacking at "wrong" distances on the non-optimized
> bands.  A 2-stack of 3 element monos (20 meters) with 50 foot spacing
> will cream your TH-7's all day long (given the same terrain etc.).
> 
> Another small 2 or 3 stack on 15 and 10 and Fred is left in the
> dust.  All for not much more windload than 3 TH7-s with their
> traps etc.  If you can put up monos, go for it!! 
> 
> Speaking from very personal experience, the tribanders will
> play nice, but with the monos, you *will* be loud!
> 
> 73, J.P. W2XX/W2AA
> -- 
> ======================================================================
> J.P. Kleinhaus, W2XX  (fdba AA2DU)
> E-mail:  w2xx@cloud9.net
> 
> As we say in the software business:  "You are hosed."  
> ======================================================================
> 
> 
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