Bill, As far as all reports I've seen and my own ongoing investigation of the Wobbler phenomenon, they originate only from Cuban AM broadcast stations. There is certainly the possibility they could occur elsewhere under similar conditions, but no US, Canadian, or Mexican stations have been heard to produce Wobblers.
Wobblers are often heard interfering to some degree with other stations. It is the interaction of the varying carrier of the Wobbler and other carriers that produce the most audible result. Of course a very strong local station will likely not be affected so much as weaker stations. Wobblers originate on many different Cuban AMs, up and down the dial. A list is given on the web site along with a log of recent receptions I've made. Most of these are weak and unlikely to be heard at any great distance beyond Florida or possibly immediately adjacent Gulf and Atlantic states. The occasional extremely strong ones -- like 1100 Radio Cadena Habana of late -- have been heard all the way to the northwest coast and once even in Hawaii. You can read all about the Wobbler, with audio clips and spectrum images, at the web site -- link in my signature. For a quick listen here is a direct link to a 27kB audio clip: http://ScooterHound.com/WWWR/wobbler/wobbler7-5.mp3 Note: To best evaluate this recording you'll want to use the Windows audio mixer controls -- or your equivalent -- to play the left and right channels independently. The Left channel is the processed signal, the Right channel is the signal as received. To enhance the ability to detect weak Wobblers I use USB and off-tune to produce a beat note, this elevates the pitch of the Wobbler making it much easier to hear. That is the difference between the left and right channels in this recording. The right channel is what you would hear just tuning along the AM dial, if a strong Wobbler were encountered. The left channel was produced using special tuning techniques to make the Wobbler more obvious. Curt ------- W. Curt Deegan Boca Raton, (southeast) Florida, USA http://ScooterHound.com/WWWR/wobbler At 01:07 AM 2/21/2007, you wrote: > Are any wobblers being heard from any other locations >other than Cuba? Unfortunately most US Stations are >probably not using original equipment that's old >enough to cause wobbling signals.I'm not detecting >anything that sounds like a wobbler on any freq.In >order to hear a wobbler there can't be other signals >coming in to make the effect sound like a normal >signal mix,correct? I'm assuming that a wobbler is >just from one source. I can't say that I've heard one >yet so if one of the wobbler guys in the southeast >could attach the sound of a recorded wobbler then the >rest of us too far away can also find out what it >sounds like.Thanx from Bill in Vic,[EMAIL PROTECTED],ca _______________________________________________ IRCA mailing list [email protected] http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: [email protected]
