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Charles,
Paul Zecchino's report of a brief, strong Wobbler outburst was on Radio Rebelde stations. At the time he reported that, I was reporting a strong and continuing Wobbler on R.Reloj 870, that went on the entire evening. I also heard other weak ones at the same time, origin unknown.
If you check the frequencies where Wobblers have been heard you'll see it is not limited to any one or even two networks, but has appeared on stations that together carry a half dozen or more different networks. It is difficult to know what network is even playing on a given station, since they seem to change places from time to time. While Paul was listening to the content and could identify R.Rebelde, and I could also ID R.Reloj -- that's an easy one -- many of the Wobblers I hear are strictly from the heterodyne they produce, the content of the originating station is unknown. While station lists like the WRTH show a network as being carried by a station, this has been shown to be inaccurate at times, and as I say, changing.
Paul and I also have confirmed the station I hear on any given frequency is often not what he hears from the opposite coast of Florida. Even DFing has been less than conclusive both because it is sometimes not the same station being DFed though they're on the same frequency, and at times it is impossible to get a meaningful null on the source of a Wobbler. So it is very difficult to correlate frequencies, stations, locations, networks and Wobblers. The effort continues but it is far from complete or conclusive.
There is also the situation where, because of the way Wobblers cut through normal signals -- like sweep tones and code during DX tests -- they might even originate at a weaker station on the same frequency, but appear to be part of the signal of a stronger station. People who have heard a Wobbler cutting through the WWL or WSB signals, for example, would attest to this.
None of this is intended to detract from the merits of your theory. By the same token, neither is the power instability theory discounted in my view. Just as with all proposed explanations, it isn't as straightforward as it might at first seem.
The good news...my email client reports no s[pelling errors in your post. And grammar? We don't need no stinking grammar!
Keep on listening,
Curt
-------Original Message-------
Date: 06/30/05 16:45:47
Subject: Re: [IRCA] 670 Wobbler; 30 0140Z JUN 05; PVZ
Stop the tape! Stop the tape! [Rush Limbaugh show]
A whole bunch of clues here. Paul sez a group of Cuban stations were
being received with "wildly varying" signal levels. All Radio Reloj.
So why would we see jumping signal levels on only stations of a
particular network and not others on other networks. It looks very much
like some disturbance is being conveyed by the Reloj network 's
interconnect means. Believe that was decided to be telephone circuits.
Tends to rule out power-line instabilities
Theory: extreme noise of a very few cycles can easily propagate through
phone circuits. Can they get through audio circuitry of a transmitter
and modulate the RF?
In some cases of very wide-band audio circuitry, yes they can. Brute
force can make its way into some other audio chains.
Want to send this off so am ending this here before usual grammar checks
and spelling checks.
Charles
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Charles A & Leonor L Taylor
Greenville, North Carolina
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