[TowerTalk] Ask the experts

[jeremy-ca]

Back in 67 I got married and bought my first house. I installed a 90' tower 
with a TH6 on top. It was adequate but I kept getting beat by a friend 3 
miles away with homebrew 3 el monobanders at the same height. We both ran 
similar power. I quickly followed suit and the improvement was pronounced.

Fast foreward to 1990.  In an attempt to minimize the aluminum I installed 
another TH-6 at 60' to use as a fill in for my stacked monobanders in 
contests. It was useless so I wound up building more monobanders for each 
band. By useless I mean a purely subjective term meaning being able to crack 
pileups with ease or maintaining a run frequency.

Before Dean Straw, N6BV/1, installed his 4 stack of TH-7's in the adjoining 
town we had considerable discussions about the merits and faults of 
tribanders. He was absolutely sure mathematically that the trap losses were 
minimal and of no consequence.
After his were up and tuned we ran comparative DX tests for months. Dean 
always came in 2nd place. He ran all sorts ot terrain analysis, antenna 
plots, propagation charts, etc between us and K1EA included and generally 
scratched his head.

To this day I doubt if any multiband yagi is as good as monobanders on equal 
boom lengths. Something is missing with the computer analysis in the losses, 
interaction or both.

Carl
KM1H




----- Original Message ----- 
From: "Roger (K8RI)" <K8RI-on-TowerTalk at tm.net>
To: <K7LXC at aol.com>; <w1ksz at earthlink.net>; <towertalk at contesting.com>
Sent: Sunday, July 08, 2007 11:29 PM
Subject: Re: [TowerTalk] Ask the experts


> Let's see....
>
> They're all good, somes just better'n others and the worst was
> fantastic...er...no...wait...
> Let me rephrase that... *Most* work, some better'n others. Some a *lot*
> better'n others. With the typical small sample and range of experience 
> most
> of us have little or nothing for a reference so we think most are great.
> Skill OTOH can make most appear to be fantastic.
>
> 73
>
> Roger (K8RI)
>
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