<html><head></head><body><div class="ydp49a6d8f9yahoo-style-wrap" style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;"><div style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;"></div>
<div dir="ltr" data-setdir="false" style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;">Hi Jim,</div><div dir="ltr" data-setdir="false" style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;"><br></div><div dir="ltr" data-setdir="false" style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;">I think If it's actually a spur from the station then a filter wont help.</div><div dir="ltr" data-setdir="false" style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;"><br></div><div dir="ltr" data-setdir="false" style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;"><span><span style="color: rgb(0, 0, 0); font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;">This morning, I am able to see the 680 KHz station at 21.280 MHz using *NO* antenna, but just a short two foot piece of coax connected to the rig. I see it on both of my receivers.</span></span><br></div><div dir="ltr" data-setdir="false" style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;"><span><span style="color: rgb(0, 0, 0); font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;"><br></span></span></div><div dir="ltr" data-setdir="false" style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;"><span><span style="color: rgb(0, 0, 0); font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;"><br></span></span></div><div dir="ltr" data-setdir="false" style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;"><span><span style="color: rgb(0, 0, 0); font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;">From Art - NF1A</span></span></div><div dir="ltr" data-setdir="false" style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;"><br></div><div dir="ltr" data-setdir="false"><div style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;"><p class="ydpd1947c4cyiv1156873520MsoNormal" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;">"I could not hear it at my home station on 14280 tried 4 antennas various polarizations including hex beam at 40 ft pointed south. I live just north of the Billerica Country Club golf course. Let me know if it still persists. I may throw my Grundig G6 in the car and drive around and monitor the next time I run errands in Burlington.</p><p class="ydpd1947c4cyiv1156873520MsoNormal" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;"> </p><p class="ydpd1947c4cyiv1156873520MsoNormal" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;">Art</p><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;">NF1A"</div></div><div style="font-family: Calibri, sans-serif; font-size: 11pt; margin: 0in;"><br></div><div style="margin: 0in;" dir="ltr" data-setdir="false">Thanks for your report Art.</div><div style="margin: 0in;" dir="ltr" data-setdir="false"><br></div><div style="margin: 0in;" dir="ltr" data-setdir="false">Since I have the signal with a terrible antenna (short piece of coax), and it responds like a normal signal to attenuation, can I assume my digital front-ends are not overloaded? Is it more likely I'm seeing the 21'st harmonic spur from a station a few miles away? Also - this just started a few days ago - no real change to my setup.</div><div style="margin: 0in;" dir="ltr" data-setdir="false"><br></div><div style="margin: 0in;" dir="ltr" data-setdir="false">-Craig, K1CWD</div><div style="margin: 0in;" dir="ltr" data-setdir="false"><br></div><div style="margin: 0in;" dir="ltr" data-setdir="false"><br></div><br></div><div dir="ltr" data-setdir="false" style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;"><span><span style="color: rgb(0, 0, 0); font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;"><br></span></span></div><div style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 16px;"><br></div>
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On Saturday, February 11, 2023 at 10:32:06 AM EST, n1hts@comcast.net <n1hts@comcast.net> wrote:
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<span style="font-family:helvetica;font-size:12pt;">If AM stations are bleeding in, buy a filter.</span>
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<span style="font-family:helvetica;font-size:12pt;"><a shape="rect" href="https://kf7p.com/KF7P/Morgan_Filters.html" rel="nofollow" target="_blank">Morgan Filters (kf7p.com)</a></span>
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On 02/10/2023 7:19 PM Christopher Lennon <kwaj.speedo@gmail.com> wrote:
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I live in Bedford. I hear 680kHz loud and clear, but that is WBEZ.
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I only have an SDR receiver with a simple wire antenna set up at the moment. I didn't hear anything on 14.280.
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Chris W2BPL
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On Fri, Feb 10, 2023, 12:32 PM ARTHUR PIZER <<a shape="rect" href="mailto:apizer@comcast.net" rel="nofollow" target="_blank">apizer@comcast.net</a>> wrote:
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Hi all I’ve been sending these replies from my iPhone voice to text feature from my cafeteria during lunch at work so I apologize for any typographical errors or that is to say transcription errors when I get home I will give a listen for my shack tonight 73 Art
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On 02/10/2023 12:27 PM Craig Davidson via bars <<a shape="rect" href="mailto:bars@w1hh.org" rel="nofollow" target="_blank">bars@w1hh.org</a>> wrote:
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Thanks for all the replies from everyone. I'm not sure if everyone sees the replies through the reflector, but wanted to add some additional info:
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I have two rigs, an ANAN 7000 and an IC-7300. Both rigs see the AM signal at 14.280.
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I can tell it's WRKO because I switch to the AM band and hear the same dialog on their station. Of course, their station is booming because I'm only a few miles away.
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There is no overload condition on the front-ends of either receiver that I can tell. I can reduce the input attenuation and the signal is still there, although reduced somewhat with the attenuation, which is to be expected I think if it's actually interference being picked up by the antenna, as opposed to an RFI path after the front-end.
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I have two wire antennas with two separate feedlines, and have the interference on both antenna's.
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This just started recently, and can't correlate it to any change I made in my station.
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Thanks,
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Craig
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On Friday, February 10, 2023 at 11:32:10 AM EST, Craig Davidson via bars <<a shape="rect" href="mailto:bars@w1hh.org" rel="nofollow" target="_blank">bars@w1hh.org</a>> wrote:
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Good Morning,
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Has anybody else noticed interference at 14.280 from the WRKO station broadcasting at 680 KHz?
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This seems to have started a few days ago.
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I'm pretty sure it's not receiver overload on my end, but actual out-of-band stuff generated by the station (granted that my QTH is very close to the transmitter in Burlington).
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I tried calling the station numbers I had available but just get voicemail.
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Anybody deal with this before, or have good contact info for the station engineer?
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Thanks,
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Craig, K1CWD
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