Topband: 1940 kHz Intruder

[FRED BELGHAUS]

If we mix 1280 and 1660 we get these 2 stations:

1280 WADO 50 kW Day / 7200 W Night (Licensed to NYC) but transmitter in
Carlstadt, NJ
1660 WWRU 10 kW Day & Night Jersey City, NJ

(Info via): http://mesamike.org/radio/cdbs/amdb.mvc

These stations are about 12 miles apart.

Fred W2AAB

On Thu, Jan 5, 2023 at 12:21 PM Joe Subich, W4TV <lists at subich.com> wrote:

> On 2023-01-05 11:26 AM, A J wrote:
>
>  > It sounds like two station are there possibly more.
>
> Intermodulaton (mixing) ...
>
>  > I heard a frequency 1610khz  said.
>
> You have two frequencies, solve for the third.
>      1940 = 2 * x - 1610 = 1775 (out of band)
> or  1940 = 2 * 1610 - x = 1280
>
> I would start looking at the allocations for a community
> where you have a 1610 and 280 close together (preferably
> co-located).
>
> 73,
>
>     ... Joe, W4TV
>
> On 2023-01-05 11:26 AM, A J wrote:
> > Hi All
> >
> > It sounds like two station are there possibly more.
> >
> > I heard a frequency 1610khz  said.
> >
> > No directional antenna to the south east. Just North and NE nothing
> > heard on those. It is heard on the inverted V at varying levels.
> >
> > The info draws a picture. See link below.
> >
> > https://www.contesting.com/data/profile/ve3hj/photo.jpeg
> >
> >
> > AJ___ VE3HJ
> >
> >
> >
> > On 1/5/23 00:09, Frank W3LPL wrote:
> >> Hi Jim,
> >>
> >> No one has yet reported a strong enough signal to be sure if its a
> mixing
> >> product or a harmonic.  Because everyone -- so far -- is reporting a
> weak
> >> signal I suspect its a mixing product.  Two reporters said that the
> audio
> >> is badly distorted and appears to carrying two programs.
> >>
> >> The signal it too weak here for me to analyze.
> >>
> >> It appears to radiate from the vicinity on northern NJ, NY City or
> >> southern NY
> >>
> >> Perhaps a Topbander is that vicinity will report a stronger signal
> >>
> >> 73
> >> Frank
> >> W3LPL
> >>
> >> ----- Original Message -----
> >> From: "K9YC" <jim at audiosystemsgroup.com>
> >> To: "topband" <topband at contesting.com>
> >> Sent: Thursday, January 5, 2023 4:48:50 AM
> >> Subject: Re: Topband: 1940 kHz Intruder
> >>
> >> I'm much too far away to hear anything, but the obvious question is, "is
> >> it a harmonic or a mix?"  So is anyone hearing it loud enough to tell if
> >> there are two programs or only one?
> >>
> >> 73, Jim K9YC
> >>
> >> On 1/4/2023 7:04 PM, samjos at epix.net wrote:
> >>> >From NE PA FN11VF bearing is roughly NNE. Too distorted to make out.
> >>>
> >>> _________________
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> >>>
> >>> --
> >>> Knowledge is Power and Power is Knowledge.___AJ___1967
> > _________________
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