[NLRS] Need some help listening for a 2m signal

Chris Elmquist chrise at pobox.com
Tue Feb 23 17:02:49 EST 2021


OK Jon,  our email crossed in the streams.  I will keep listening
here with both SDR spectrogram and FT-736 with horiz 2m yagi and a lot
more gain.  Looking south, southwest-ish with that.

Chris NØJCF

On Tuesday (02/23/2021 at 09:57PM +0000), Jon Platt wrote:
> Hi Chris.
> The signal is intermittent.  I have not heard it for the last hour, but prior to that it was at about a 70% duty cycle where it would key on for 2 to 8 seconds, off for a few seconds, then back on again with no real pattern other than intermittent.  Its pretty strong so I have no doubt that you should be able to hear it when its on.  Again, right now, at 3:56pm I have not heard it for a while.  My belief is that it is originating somewhere in the Lakeville area.
> 73, Jon
> 
> 
> -----Original Message-----
> From: Chris Elmquist <chrise at pobox.com>
> To: Jon Platt <w0zq at aol.com>
> Cc: nlrs at mailman.qth.net <nlrs at mailman.qth.net>
> Sent: Tue, Feb 23, 2021 3:36 pm
> Subject: Re: [NLRS] Need some help listening for a 2m signal
> 
> 
> Gary mentioned it to me too and I have been listening with an SDR and
> Icom R-7000 connected to a discone (vertically polarized, omni) from
> here in Mahtomedi (EN35mb) and I do not see or hear the signal with
> that equipment.
> 
> Also listening with FT-736, preamp and 2m yagi at 40', pointed straight
> south and do not hear it.  Noise floor is below S1 on this gear.
> 
> Chris NØJCF 
> 
> On Tuesday (02/23/2021 at 08:46PM +0000), Jon Platt via NLRS wrote:
> > Hello Twin Cities...W0GHZ and I are hearing a very strong intermittent signal on 144.220.  Its fairly broad, a few KHz wide, and doesn't seem to have any kind of modulation to it.  Its intermittent and when it starts it has a "beep" like a repeater.  For me located in east Bloomington it peaks straight south of me at S9+ 20 without the preamp.   Can others listen for it and let me know on what bearing it peaks?...73, JonW0ZQ
> 
> -- 
> Chris Elmquist
> 

-- 
Chris Elmquist



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