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[TowerTalk] PolyPhaser

To: <>
Subject: [TowerTalk] PolyPhaser
Date: Fri, 5 Dec 1997 10:20:30 -0800
This is all well and good, but I suggest taking any info gotten this way with a
grain of salt. Poly has many good competitiors: Andrews, M/A-Com, Northern
Technologies and, as mentioned below,  H+S in
the RF world, Transtector, AC Data Systems and Northern Technologies in the
ac power world and others in the other areas where Poly provides products such
as dc power and telco/twisted pair/data.

These companies make good products. I honestly do believe Polys perform better, 
I've been at third party testing labs as well as at our own lab and at the 
customer's lab
where this was proven and documented. 
Ask what the actual let-through energy and voltages are and ask to see the 
plots from the surge
testing. Just like with antennas, with dBi vs dBd, element spacing, and HAAT 
etc., you must
compare apples with apples. Ask for the surge waveform used and what actually 
the UUT (unit under test). A let-through voltage of +/-3V (and what waveform 
and duration?) is
excellent, but was the surge current 3kA or 30kA?

Let me put it this way, some competitors (and this is a universal statement) 
been known to be "creative" in their statements about competitors. Poly 
never knocked the competition, but merely stated the pros and
cons between them. If a customer had an application for which I believed a 
had a more appropriate product, I would say so. This was a fairly rare 
occurrence, but
did happen. Usually it was more along the lines of what the customer really 
needed was
a UPS, but we did suggest protecting the UPS would be prudent.

73, Bob AA0CY

From:  Stan Griffiths[]
Sent:  Friday, December 05, 1997 1:12 AM
To:  Charles H. Harpole
Subject:  Re: [TowerTalk] PolyPhaser 

>The very fact that a former employee of a company, any company, has to
>"toe the party line" means that that company is not being completely
>honest nor scientific in its release of advice.  The old problem of taking
>performance advice from the folks who also sell the "solution" to your
>problem, raises its ugly head.
>Independent and yet good, product advice could come from magazines, but
>they too have an axe to grind.  What to do???
>de K4VUD

If I doubt the word of a manufacturer, I put the same question to his
competitor for a second opinion.  PolyPhaser DOES have at least one good
competitor: Huber and Suhner of Switzerland.  They have distributors in the
U.S. but do not vigorously pursue the ham market for obvious reasons:  Hams
are notariously cheap and it is hard to do a profitable business with them .
. .  Just the same, you can get catalogs and a lot of good technical info
from them and they are not hesitant to compare their products to PolyPhaser
stuff.  One Huber and Suhner Representative in the U.S. that I know of is
ARVA-Hudson in Woodinville, WA. (800) 223-5087.


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