[IRCA] Re: Wobbler, more weirder...
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[IRCA] Re: Wobbler, more weirder...



Hi Curt, From here in Rossville GA the wobblers come in better when I'm looping towards Cuba\Florida. I can null them easily but they can be very strong here and as you said they are always on frequencies also occupied by Cubans, RR mostly but I have heard it on another outlet too. They can be surprisingly loud here even on the ATS-909. What puzzles me is that I can plainly hear the FL station on 930 right thought it without any apparent carrier interference like you would normally hear. What I'm trying to say is that the wobbler sound seems to be "transparent" ie kind of like if a radio station was running the wobbler audio into the board and running the volume slider up and down over what was already playing. So you have one carrier and 2 audio sources playing at the same time. Could you send me a long clip of what you have?  I'm rambling now so I'll shut up!
73's and great DX,
John Hunter
Rossville GA

At 08:03 PM 2/8/05, you wrote:
 
I've been reporting on the Wobbler signal - the one that sounds like wobbling sheet steel - most often heard by me on 930 and by others on other BCB frequencies, generally 1100 and below. 
 
As I shut down my receiver late last night I noticed something strange about what is already strange.  The Wobbler seems to come in strong, even with the most minimal antenna.  Where other signals fade away as the antenna is reduced, the Wobbler really doesn't. 
 
I've found I get it like gangbusters with a small whip.  Even a 6-inch piece of wire stuck in the center contact of the receiver coax connector brought the Wobbler in.  The S-meter is laying on the right stop with RF gain full up, only slight background signals down in the noise, and the Wobbler is wobbling away.  The more I crack up the active antenna gain, the more other signals come in, and the less overpowering is the Wobbler, staying pretty much at the same level it seems. 
 
I've been listening to it like this all afternoon and evening so far, and the signal never seems to fade.  It isn't always there, but when it is, it always seems to be at the same strength.  The violence of the wobbling rises and falls, but the loudness of the signal does not, to any substantial degree.  Nor is there any appreciable difference between mid day reception and late night.
 
I admit I'm using some tuning tricks that enhance hearing the Wobbler - USB, narrow filter, detuning, even DSP - but still, it does not act like normal signals would, day or night.
 
To me, this argues against the notion of jamming.  Especially when you consider the only stations I hear during the day are Cuban, so what is there to jam?
 
Just thought I'd report these latest observations, for those who have an interest.
 
And as always, I welcome any thoughts, suggestions, or theories anyone would care to offer.
 
W. Curt Deegan
Boca Raton, (South East) Florida
[JRC NRD-535D, LF Engineering H-800 & M-601,
  Quantum Phaser, ANC-4 noise canceler, GAP DSP]
----------
See more about the Wobbler at this web site:
http://ScooterHound.com/WWWR/wobbler

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