P3 Display Anomaly
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Just wondering if I am the Lone Ranger here or if anyone else is having this P3 "experience". Every so often, perhaps once every 20 - 40 seconds or so, I see some sort of spur go flying across the screen. It starts low and flies up in frequency, right off the display. With my display span set at 50 kHz below and 50 kHz above, this "spur" takes only a second to cross the entire display range. Not band dependent, either. My K3 is running on solar / battery power, so it isn't something from my power supply.
It isn't causing me a problem, just wondering if I have a "special" K3/P3 or if this is common. Tnx, Jim / W6JHB Jim Bennett 224 American River Canyon Dr. Folsom, CA 95630-7409 [hidden email] Web: http://www.fil-am-sellers.com Being retired doesn't mean I'm not part of the work force - just that I'm not forced to work! ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Disconnect your antenna, set the REF LVL on the P3 so you can see the background noise at the base of the display and watch it for a while. If you no longer see it, it isn't in the K3/P3 anywhere and is external to the radio.
I have several "sweepers" that come through from time to time. One is somewhere in the neighborhood and the other is coming from a bad TV cable line amplifier on the pole outside my house. I'm having a heck of a time getting the cable company that it's their problem and they are liable for fixing it. I have gotten the local "fox hunt" group out and they confirm my findings and we know exactly which amp it is. I have spectrum pix of it using the image capture feature of the P3 with dates, times and frequencies. I filed a formal complaint with the FCC and sent them copies of all correspondence with the cable company, my spectrum analysis pictures and notarized affidavits from the fox hunt guys with their direction finding results. Hopefully that will get the same results I got with the power company. Had to file a formal complaint with the FCC on that one too, but now, they are all sweetness and light and whenever I call 'em they jump on the line noise problems as quick as they can free up a crew to clean/fix insulators in the neighborhood. Jim - W0EB > Just wondering if I am the Lone Ranger here or if anyone else is > having this P3 "experience". Every so often, perhaps once every 20 - > 40 seconds or so, I see some sort of spur go flying across the > screen. It starts low and flies up in frequency, right off the > display. With my display span set at 50 kHz below and 50 kHz above, > this "spur" takes only a second to cross the entire display range. > Not band dependent, either. My K3 is running on solar / battery > power, so it isn't something from my power supply. > > It isn't causing me a problem, just wondering if I have a "special" > K3/P3 or if this is common. > > Tnx, Jim / W6JHB > > > Jim Bennett > 224 American River Canyon Dr. > Folsom, CA 95630-7409 > > [hidden email] > > Web: http://www.fil-am-sellers.com > > Being retired doesn't mean I'm not part of the work force - just > that I'm not forced to work! > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Jim Bennett
On 3/15/2012 4:00 PM, Jim Bennett wrote:
> Just wondering if I am the Lone Ranger here or if anyone else is > having this P3 "experience". Every so often, perhaps once every 20 - > 40 seconds or so, I see some sort of spur go flying across the > screen. It starts low and flies up in frequency, right off the > display. You're not the Lone Ranger, Kemosabe. I see it, not a spur for me, goes away without the antenna. I also see "moving humps", sorry, no other description, that drift from time to time, and generally upwards in frequency but not always. They go away with no antenna too. There's a whole lot of very weird electromagnetic radiation out there. I can see an ET or conspiracy theory developing here, I think I'll decline. And your use of "anomaly" conforms to NASA standards. It could be an inop indicator, or pointy part of the rocket in the sand somewhere south of Phoenix. A truly useful term. 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Jim Bennett
On Thu, Mar 15, 2012 at 6:00 PM, Jim Bennett <[hidden email]> wrote:
> ...Every so often, perhaps once every 20 - 40 seconds or so, I see some sort of spur go flying across the screen..... ================ I see 'em too, Jim, and I know they're for real because I can hear them in my headphones. I don't know if you usually use headphones, but if you do I'm pretty sure you too will hear the spurs as they fly across. Some of these may be beacons. There are some beacons that sweep from low to high, with antennas that shoot straight up; they are used by NOAA or some agency (don't know which) to map the MUF. And of course there are many sources of pure garbage, such as those described by Jim W0EB in his interesting post. There are also innumerable sources of non-sweeping junk being radiated throughout the spectrum. I guess somebody knows what it all is, but I sure don't. One of the most irritating appears as a bunch of closely-spaced carriers that show up on the spectrum as a hump-shaped series of vertical lines, and sounds like a table-saw. I see this at various times and places on all bands. At my QTH one of these seems to come on whenever there's juicy but weak DX on 30 meters. Tony KT0NY -- http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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They are chirpsounders - normally on SSB or CW you may hear a 'blip' as they pass through using a pandapter you can see they whizzing up band visually! They are Ionospheric sounders mapping the layers. Quite useful tools. There are various radars and sounders also operating around 5-6 Mhz and 10 MHz TIGER around the 10 MHz spectrum is another ionospheric sounds and you will see various CODAR signals too (these are wave heights and direction radars for weather) not very useful! with their broadband noisey signals. HF is a busy place even in these days of satellites and microwaves! Cheers Simon ZL4PLM Check out more information on the world 50 MHz and Up : www.zl4plm.com > Date: Thu, 15 Mar 2012 20:04:43 -0500 > From: [hidden email] > To: [hidden email] > Subject: Re: [Elecraft] P3 Display Anomaly > > On Thu, Mar 15, 2012 at 6:00 PM, Jim Bennett <[hidden email]> wrote: > > ...Every so often, perhaps once every 20 - 40 seconds or so, I see some sort of spur go flying across the screen..... > ================ > I see 'em too, Jim, and I know they're for real because I can hear > them in my headphones. I don't know if you usually use headphones, but > if you do I'm pretty sure you too will hear the spurs as they fly > across. > > Some of these may be beacons. There are some beacons that sweep from > low to high, with antennas that shoot straight up; they are used by > NOAA or some agency (don't know which) to map the MUF. And of course > there are many sources of pure garbage, such as those described by Jim > W0EB in his interesting post. > > There are also innumerable sources of non-sweeping junk being radiated > throughout the spectrum. I guess somebody knows what it all is, but I > sure don't. One of the most irritating appears as a bunch of > closely-spaced carriers that show up on the spectrum as a hump-shaped > series of vertical lines, and sounds like a table-saw. I see this at > various times and places on all bands. At my QTH one of these seems to > come on whenever there's juicy but weak DX on 30 meters. > > Tony KT0NY > > > > -- > http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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On Thu, Mar 15, 2012 at 8:11 PM, Simon Lewis <[hidden email]> wrote:
> They are chirpsounders... ================= Ah yes, now I remember hearing that name. Thank you, Simon Those are the sweeping beacons I mentioned. Google on 'chirpsounder' and you'll find a strange world of propagation analysis stuff you may not have known about or imagined. Peter Martinez G3PLX, one of ham radio's resident geniuses (inventor of PSK), seems to have started the ball rolling with a software app and analytical framework. Others have built on it to create a number of esoteric tools to figure out what's going on up there in the sky. Of course, what Jim was hearing that prompted all this may be something different, like a faulty cable repeater, and may have nothing to do with chirpsounders. But some of the ones I hear definitely are. Tony KT0NY -- http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Simon Lewis-6
Google "SeaSonde" ... I used to work within a few hundred yards of
two of them ... one near Waldport, OR and one on Yaquina Head, OR. Both are housed in the utility areas of public bathrooms. (;-) I have numerous photos. There are hundreds of ionospheric sounders scattered all over the world. The NBS operates one behind one of the NBS buildings in Boulder, CO. Noise from Jupiter is common throughout the HF range and can sometimes seen in PSK waterfall displays. I used to work in radio astronomy, BTW 73! Ken - K0PP On Fri, Mar 16, 2012 at 1:11 AM, Simon Lewis <[hidden email]> wrote: > > They are chirpsounders - normally on SSB or CW you may hear a 'blip' as > they pass through > > using a pandapter you can see they whizzing up band visually! > > They are Ionospheric sounders mapping the layers. Quite useful tools. > > There are various radars and sounders also operating around 5-6 Mhz and 10 > MHz > > TIGER around the 10 MHz spectrum is another ionospheric sounds and you > will see various CODAR signals too (these are wave heights and direction > radars for weather) > > not very useful! with their broadband noisey signals. > > HF is a busy place even in these days of satellites and microwaves! > > Cheers > > Simon ZL4PLM > > > > > Check out more information on the world 50 MHz and Up : www.zl4plm.com > > > > > Date: Thu, 15 Mar 2012 20:04:43 -0500 > > From: [hidden email] > > To: [hidden email] > > Subject: Re: [Elecraft] P3 Display Anomaly > > > > On Thu, Mar 15, 2012 at 6:00 PM, Jim Bennett <[hidden email]> wrote: > > > ...Every so often, perhaps once every 20 - 40 seconds or so, I see > some sort of spur go flying across the screen..... > > ================ > > I see 'em too, Jim, and I know they're for real because I can hear > > them in my headphones. I don't know if you usually use headphones, but > > if you do I'm pretty sure you too will hear the spurs as they fly > > across. > > > > Some of these may be beacons. There are some beacons that sweep from > > low to high, with antennas that shoot straight up; they are used by > > NOAA or some agency (don't know which) to map the MUF. And of course > > there are many sources of pure garbage, such as those described by Jim > > W0EB in his interesting post. > > > > There are also innumerable sources of non-sweeping junk being radiated > > throughout the spectrum. I guess somebody knows what it all is, but I > > sure don't. One of the most irritating appears as a bunch of > > closely-spaced carriers that show up on the spectrum as a hump-shaped > > series of vertical lines, and sounds like a table-saw. I see this at > > various times and places on all bands. At my QTH one of these seems to > > come on whenever there's juicy but weak DX on 30 meters. > > > > Tony KT0NY > > > > > > > > -- > > http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352 > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Jim Sheldon
Well, after several very informative replies to my post, I've come to the determination that I'm not the only one seeing these "Flying Fribbles", "Moving Humps", "Sweepers", "Chirpsounders", "Beacons", "SeaSonde", etc. Of course, it's just possible that there is a cloaked ship up there that is scanning us……. :-) :-)
So, maybe Wayne & crew can add a new button to the K3 such that we'd have: NB (Noise Blanker), NR (Noise Reduction), and FR (Fribble Reducer). Arrrghhhhh - I need a glass of wine! OK, end of thread (at least for me). 73, Jim / W6JHB On Thursday, Mar 15, 2012, at Thursday, 4:17 PM, Jim Sheldon wrote: > Disconnect your antenna, set the REF LVL on the P3 so you can see the background noise at the base of the display and watch it for a while. If you no longer see it, it isn't in the K3/P3 anywhere and is external to the radio. > > I have several "sweepers" that come through from time to time. One is somewhere in the neighborhood and the other is coming from a bad TV cable line amplifier on the pole outside my house. I'm having a heck of a time getting the cable company that it's their problem and they are liable for fixing it. I have gotten the local "fox hunt" group out and they confirm my findings and we know exactly which amp it is. I have spectrum pix of it using the image capture feature of the P3 with dates, times and frequencies. I filed a formal complaint with the FCC and sent them copies of all correspondence with the cable company, my spectrum analysis pictures and notarized affidavits from the fox hunt guys with their direction finding results. Hopefully that will get the same results I got with the power company. Had to file a formal complaint with the FCC on that one too, but now, they are all sweetness and light and whenever I call 'em they jump on the line noise problems as quick > as they can free up a crew to clean/fix insulators in the neighborhood. > > Jim - W0EB > >> Just wondering if I am the Lone Ranger here or if anyone else is >> having this P3 "experience". Every so often, perhaps once every 20 - >> 40 seconds or so, I see some sort of spur go flying across the >> screen. It starts low and flies up in frequency, right off the >> display. With my display span set at 50 kHz below and 50 kHz above, >> this "spur" takes only a second to cross the entire display range. >> Not band dependent, either. My K3 is running on solar / battery >> power, so it isn't something from my power supply. >> >> It isn't causing me a problem, just wondering if I have a "special" >> K3/P3 or if this is common. >> >> Tnx, Jim / W6JHB >> >> >> Jim Bennett >> 224 American River Canyon Dr. >> Folsom, CA 95630-7409 >> >> [hidden email] >> >> Web: http://www.fil-am-sellers.com >> >> Being retired doesn't mean I'm not part of the work force - just >> that I'm not forced to work! >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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