Re: [IRCA] 1100 Wobbler

["W. Curt Deegan" <WWWR@xxxxxxxxxxxxx>]

Marty,

I failed in both my posts to use the proper signature lines which would 
include a link to my Wobbler web site.  There you'll find more than you 
ever wanted to know about the topic.

In brief, the Wobbler is not a station, it is an unexplained anomaly of 
some Cuban broadcast stations.  When heard in its most vigorous mode it 
sounds like a sheet of metal being shaken or wobbled, hence the name I 
coined for the thing.  At its most extreme it can be heard at night over 
powerhouse stations all across the country.  As I mentioned, such an 
example on 1100 Radio Cadena Habana, from Havana Cuba, was heard in 
Hawaii.  The northwest of the US has heard the Wobbler, but I don't think 
anyone from California has reported hearing any.

There are a dozen or so Cuban stations which exhibit this unpredictable 
condition.  There is no way to know when one or several might be heard, 
though in the past there have been periods where one sounded off for 
several days if not weeks at a time.  Every day since I started tracking 
them -- well over a year now -- there has been at least one and usually a 
half dozen or so heard every day, but very much weaker than can be heard 
from beyond the near local south Florida vicinity.

You can read about the suggested cause of the phenomenon -- generally 
believed to be attributable to malfunctioning old equipment and an unstable 
power system.  You can also hear samples of it, and see spectrum traces of 
the signal.  Plus, as I say, a lot more including my logs.

This time the link is in my signature as it should have been before.

Curt
-------
W. Curt Deegan
Boca Raton, (southeast) Florida
http://ScooterHound.com/WWWR/wobbler



At 01:31 AM 9/8/2006, you wrote:
>Hi all, could somebody explain what these wobblers are, since as far as
>I know, we don't get any in the San Francisco bay area, unless you
>classify touch lamp interference wobblers, "lol."
>On Thu, 07 Sep 2006 23:17:24 -0400, W. Curt Deegan wrote:
>
>Bruce & Bert,
>
>There is often a Wobbler on both 750 and 1100, but I've not heard
>anything
>lately I would expect to get out beyond near local.  That's not to say
>there couldn't have been a period of extreme wobbling that then settled
>out.
>
>Earlier today 750 and 1100 had what I class as medium Wobblers which
>would
>typically only be heard if the station itself were coming in enough to
>produce a discernable het or maybe very low audio.  Right now at 0300Z
>I
>have both also with medium Wobblers.
>
>Unless you heard something else that sounds similar, I would guess you
>heard what I've termed an "outburst".  This is when a rather bland
>Wobbler
>suddenly goes berserk briefly then settles back down.  Sometimes this
>precedes the transmitter even going off-line for a time.  Presumed to
>be
>some sort of malfunction.
>
>I assume I just missed the 1100 event earlier tonight.  Right now both
>are
>modestly active.
>
>Thanks for the reports.  Have to keep an eye on these things, otherwise
>
>they get nasty.
>
>Curt
>-------
>W. Curt Deegan
>Boca Raton, (southeast) Florida
>
>
>At 10:50 PM 9/7/2006, you wrote:
> >I heard it at 0645 this morning mixed with WSB on 750.
> >
> >
> >
> >Bert New
> >Watkinsville, Georgia
> >Proudly Serving You Since 1964!
> >
> >
> >
> >
> > >From: Bruce Winkelman <bdwink@xxxxxxx>
> > >Reply-To: Mailing list for the International Radio Club of
> > >America<irca@xxxxxxxxxxxxxxxx>
> > >To: IRCA Mail List <irca@xxxxxxxxxxxxxxxx>, ABDX@xxxxxxxxxxxxxxx
> > >Subject: [IRCA] 1100 Wobbler
> > >Date: Thu, 07 Sep 2006 21:47:08 -0500
> > >
> > >The wobbler is strong at times over WTAM here in Tulsa this evening,
> > >2130-2145CDT.


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