[IRCA] WIBW spurs Sally`s

[Glenn Hauser <wghauser@xxxxxxxxx>]

** U S A. 580, Nov 28 at 2048 UT, on the caradio driving thru half of Enid, I am hearing when the ambient noise level allows an almost continuous ringing sound, not when tuned to WIBW Topeka, which is in a talk show, but when I step 10 kHz to either side, i.e. a beat against 570 KLIF Dallas, and stronger against 590 KXSP Omaha, whose own signal is weaker than KLIF. WIBW must be putting out matching spurs! Continuing to listen mostly on 590, the ringing sound sometimes stops for a second or so, and sometimes for a minute or two. It`s not a pure tone, but two slightly different pitches rapidly alternating, a lot like those annoying Salvation Army ringers outside every store. The pitches heard on 590 are ever so slightly higher than on 570, so the three stations must not all be on exact .0000 frequencies. 

Tuning back across WIBW itself at 2129 UT, I hear them mention that they are amid a ``Red Kettle Campaign``. OMG, here`s what must be happening: WIBW is airing this continuous annoying ringing in the background of its own talkshow modulation, and the pitch is too high to come thru the bandwidth my caradio when tuned to 580. But it`s *not* too high when tuned to an adjacent frequency, i.e. over 5 kHz on the originator, less than 5 kHz beat on the neighbors. Sure nuff, when I get home and try it on the portable DX-398 with 1-kHz steps and finer 40-Hz steps in the SSB mode, I can approximately pinpoint the jingly `carriers` around 574 and 586. If WIBW keeps doing this, and we`ve got almost a month until Xmas, others should be able to pick these up at a skywave distance; I get them all by groundwave. But I pity the poor Topekans with wider bandwidth on their cheap AM radios (Glenn Hauser, Enid OK, DX LISTENING DIGEST)
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