Topband: 1940 kHz Intruder

[Joe Subich, W4TV]

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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