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Yes but we aren't talkng about a spur from a dirty occilator but rather just a frequency multiple blowing out the receiver due to poor design and rfi shielding...sheer brute force of the signal and its multiple... 73 Doc W2MFT --- On Mon, 2/11/13, Rene Matthijssen <r...@dish-net.com> wrote: From: Rene Matthijssen <r...@dish-net.com> Subject: Re: [Spooks] Morse Code Broadcast To: "Martin VE3OAT" <ve3...@storm.ca>, "Shortwave Spy Numbers Stations" <spooks@mailman.qth.net> Date: Monday, February 11, 2013, 7:44 PM Visit http://mailman.qth.net/mailman/listinfo/spooks to unsubscribe from this list Since the IF frequency of most radios is 455 KHz for AM recption, that would make the received (mirror image) frequency 1630 + 455 = 2085 KHz. Some use 472 KHz and that could make the received frequency 2102 KHz. Rene - VE6WCA On 13-02-11 05:36 PM, Martin VE3OAT wrote: > Visit http://mailman.qth.net/mailman/listinfo/spooks to unsubscribe from this > list > > Ruth and Zack, > > I checked the ARRL Newsletter for any Amateur contest or other radiosporting > event on Feb 6/7 but didn't find any. But that doesn't mean it couldn't have > been someone working a little DX, especially if propagation was good that > night. (I wasn't on the air then so don't know what conditions were like.) > > From another point of view, I see that Ashland is near the coast. I wonder if > there might be a commercial station in the Maritime Service that is on the > right frequency and strong enough that it would cause an RF image in your > receiver on 1630 kHz. I know that many maritime mobile and fixed stations > operate in the 2.0 to 3 MHz band, for example. > > ... Martin VE3OAT > > > > ______________________________________________________________ > Spooks mailing list > Home: http://mailman.qth.net/mailman/listinfo/spooks > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Spooks@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Spooks mailing list Home: http://mailman.qth.net/mailman/listinfo/spooks Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Spooks@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Spooks mailing list Home: http://mailman.qth.net/mailman/listinfo/spooks Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Spooks@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
