[Exotics] what the H is this?

[Bob Camp]

Hi,

Sounds a lot like an antenna designed for EMI testing.

    Bob Camp
    KB8TQ


----- Original Message -----
From: "refmon" <monitor@referencevideo.com>
To: <exotics@mailman.qth.net>
Sent: Friday, April 11, 2003 3:06 AM
Subject: [Exotics] what the H is this?


> Hi,
>
> In the hope that by some small chance this inquiry is on topic, here goes.
> Actually, if anyone has run across this or has the research materials to
ID
> it, please drop me a line off line.
>
> I have procured a dual biconical antenna system bearing the following ID:
>
> Dubrow Development Company
> Order # 21762-PH-56
>
> Both biconicals are VHF to UHF and bear the ID #'s AN-170  and AN-160.
They
> are beautifully made of very light materials with a central insulator of
> clear plastic of some species.  I can see the internal feed assembly,
which
> is direct wires to each cone terminating in a 2 pin (presumably balanced)
> connector.
>
> The antennas are mounted on a horizontal arm assembly which is oddly
heavy,
> given the antenna structure.  Each arm mounts into a central mast-mount
hub;
> each arm extends the balanced signal pickoff inward toward the mast hub.
I
> have not tried to reverse engineer/SWR-plot these guys yet, so all I can
> tell you is:
>
> The AN-170 is 23" tip-to-tip and each conical segment is 9" in diameter.
> The AN-160 (not with me) is about 2/3 that scale.
>
> Any ideas?
>
> thanks in advance
>
> John Collins
> Tualatin, Oregon
>
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