Question about WKOX
Cohasset / Hippisley
Tue Apr 11 19:39:59 EDT 2006
Jim Hall wrote:
> I drive pass the Andover water plant frequently (on Route 133 in Andover,
> next to Haggetts Pond). If I am listening to WKOX 1200, just as I pass the
> plant, I hear the sound of a code transmission over WKOX....I would assume it's a harmonic
> that I am hearing (I only hear the code for a few hundred feet as I drive
> by). Any info?
More likely an "image" created by your car radio. Since the
intermediate frequency of your AM radio is usually 455 kHZ, the image
will be 910 kHz from the station you're tuned to. Accordingly, I'd
suspect a air navigation beacon on 1200 - 910 or 290 kHz.
Unfortunately, a quick scan of some of the internet longwave beacon
lists doesn't show anything in New England between 2285-295 kHz. You
usually have to be within a mile or two of them to hear them coming
through your car radio. The air navigation band is about 195 - 525
kHz. In some parts of the country you can hear the beacon on its actual
frequency just below the bottom end of the AM broadcast band.
Another possibility might be a beat involving the beacon and another
strong broadcast station combining to overload the front end of your car
radio. But you'd have to know what AM broadcast station you're going
past in Andover, because as I recall WKOX is way out in Framingham so it
wouldn't be overly strong there.
Bud Hippisley, W2RU
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