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Re: [RFI] Smoke Detectors Beeping

To: john@kk9a.com
Subject: Re: [RFI] Smoke Detectors Beeping
From: Stan Zawrotny <k4sbz.stan@gmail.com>
Date: Tue, 31 Jul 2018 15:09:27 -0400
List-post: <mailto:rfi@contesting.com>
While this is not a forum to debate antennas, I would note that OCF dipoles
continue to be a top seller among wire antennas today.

Using a solid-state antenna switch, I have performed an on-the-air
comparison between the top-selling EFHW 80-10 antenna physically located
side-by-side with an 80-10 OCF dipole with stations between Europe and my
home in Florida. In every report, the OCF was superior. The weaknesses of
the G5RV are well known and they are only bought by people who have heard
of them historically and haven't researched them currently. Slopers also
don't measure up. Fan dipoles have physical constraints. Regular dipoles
are not multi-band.

Again, this is not an antenna forum, but I could debate the OCF antennas
are current-day wire antennas for those of us limited to wires strung from
tree-to-tree (or similar).

BTW, this is one area where I have the bookshelves full of books and have
spent many hours studying, but not just books, but practical hands-on
application. I build and tune my own antennas (except for the EFHW antenna
mentioned above which I bought for evaluation). My primary antenna is a
160-6 Meter OCF dipole, nicely resonant on 160,with good SWR on every band
including WARC and 6 meters. My best antenna is one of my 80-10 M OCF
dipoles.

Stan, K4SBZ


___________________
Stan Zawrotny, K4SBZ
K4SBZ.Stan@Gmail.com

Real radio bounces off the sky.


On Sat, Jul 28, 2018 at 12:56 PM, <john@kk9a.com> wrote:

> The original poster did not say if it is a wired, multiple wired linked
> detectors or a battery unit but I am guessing that it is not a battery
> type.
> Trying a different brand may be interesting.
>
> John KK9A
>
>
> Jim Brown jim at audiosystemsgroup.com
> Sat Jul 28 12:03:04 EDT 2018
>
> On 7/28/2018 6:43 AM, john at kk9a.com wrote:
> > It is likely that the majority of the problem is feedline radiation.
>
> While it is likely a PART of the problem, the greatest part of the
> problem is the wiring issues and poor design of the detector.
>
> _______________________________________________
> RFI mailing list
> RFI@contesting.com
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>
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