K3 receive on .474.2 kHz
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After the install of the new KSYN3A synthesizer board, I tried WSPR on 474.2 KHz, using double size G5RV for receive.
I am able to copy WG2XKA using WSPR, at 597 km. I did some web searching for antennas, only thing I found were 160 ft verticals, not an option for me. Anyone know of a wire antenna or something easier to put up? thanks and 73 Emory WM3M ______________________________________________________________ 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 Message delivered to [hidden email] |
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The sort of classic 600 meter antenna is the Marconi-T. It does require
ground radials. You can also use an Inv-L if you don't have room for the "T". Either will have a very low radiation resistance at 630 meters for the heights average hams can get, and you'll need a series capacitor to tune out the reactance if you are going to transmit. A better choice might be a magnetic loop, possibly with a preamp. 73, Fred K6DGW - Northern California Contest Club - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 - www.cqp.org On 2/22/2015 3:37 PM, [hidden email] wrote: > After the install of the new KSYN3A synthesizer board, I tried WSPR on 474.2 KHz, using double size G5RV for receive. > I am able to copy WG2XKA using WSPR, at 597 km. > I did some web searching for antennas, only thing I found were 160 ft verticals, not an option for me. > Anyone know of a wire antenna or something easier to put up? thanks and 73 ______________________________________________________________ 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 Message delivered to [hidden email] |
Re: K3 receive on .474.2 kHz
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In reply to this post by ejkkjh
Look at the PA0RDT Mini whip, There is a guy who sells kits for them on ebay.
If you can get it up and in the clear they seem to work From: "[hidden email]" <[hidden email]> To: [hidden email] Sent: Sunday, February 22, 2015 6:37 PM Subject: [Elecraft] K3 receive on .474.2 kHz After the install of the new KSYN3A synthesizer board, I tried WSPR on 474.2 KHz, using double size G5RV for receive. I am able to copy WG2XKA using WSPR, at 597 km. I did some web searching for antennas, only thing I found were 160 ft verticals, not an option for me. Anyone know of a wire antenna or something easier to put up? thanks and 73 Emory WM3M ______________________________________________________________ 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 Message delivered to [hidden email] ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by ejkkjh
I just use my 160 or 80m inverted vee. At least for starting out, the limitation will more likely be atmospheric noise than antenna design.
I’ve heard a half dozen stations on 474 Ken WA8JXM > On Feb 22, 2015, at 6:37 PM, [hidden email] wrote: > > After the install of the new KSYN3A synthesizer board, I tried WSPR on 474.2 KHz, using double size G5RV for receive. > I am able to copy WG2XKA using WSPR, at 597 km. > I did some web searching for antennas, only thing I found were 160 ft verticals, not an option for me. > Anyone know of a wire antenna or something easier to put up? thanks and 73 > Emory WM3M ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by ejkkjh
Emory,
First off receiving a station at 597km (370mi) is not a bad distance on 474 KHz. Most propagation is ground wave which does not extend as far as HF. Best propagation is in winter and at night when a little sky wave is seen. Where have you searched for antenna info? Try this: http://www.500kc.com/ Most on 160m and 600m know that vertical antennas work best. Your double length G5RV probably is something like 30 or 40 feet high. That is equivalent to hanging a 10-foot long dipole 1-foot off the ground for 20m. Short horizontal antennas do not work well on 600m. True that a full size 1/4 wave is a little high (492-feet) so you are stuck with very short antennas which have very low impedance until you use a top hat and loading coil. Short antennas are capacitive so a big loading coil at the ground end connected to a ground rod is a common solution. Top hats also make the antenna appear longer. Inverted-L and Marconi-T are two typed of loaded vertical antennas. Typical antenna for non-directional beacons running 300-500 KHz are about 300-foot long and 60-foot above ground with a single vertical wire from the mid-point down the beacon transmitter sitting on ground. My inverted-L is only 43-foot high and 122-foot long on top. I have a large base coil at the ground end 10-inch diameter 11-inches long with 1/4 inch winding spacing. I tap the coil two turns above the ground end to feed coax to the shack. My antenna efficiency is less than 1% because of its size. For receiving there are magnetic loops, pendants (triangular loops), and beverage antennas (if you have some acreage). The farthest I have copied signals is Buffalo, NY which is over 4000 mi. But that is the exception. Normal day-to-day range is out to 300mi using ground wave. I can't really tell you much in a paragraph or two. You can join a 600m e-mail list at the above website if you are really interested in 600m. 73, Ed - KL7UW, WD2XSH/45 Date: Sun, 22 Feb 2015 18:37:13 -0500 From: <[hidden email]> To: <[hidden email]> Subject: [Elecraft] K3 receive on .474.2 kHz Message-ID: <DB8C4DBB35F44F3BB99C3E532D258663@ejhPC> Content-Type: text/plain; charset="iso-8859-1" After the install of the new KSYN3A synthesizer board, I tried WSPR on 474.2 KHz, using double size G5RV for receive. I am able to copy WG2XKA using WSPR, at 597 km. I did some web searching for antennas, only thing I found were 160 ft verticals, not an option for me. Anyone know of a wire antenna or something easier to put up? thanks and 73 Emory WM3M 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: [hidden email] ______________________________________________________________ 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 Message delivered to [hidden email] |
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On Mon,2/23/2015 12:10 AM, Edward R Cole wrote:
> Most propagation is ground wave which does not extend as far as HF. > Best propagation is in winter and at night when a little sky wave is > seen. A clarification. The strength of ground wave propagation increases with decreasing frequency. The FCC Rules for the AM broadcast band include a family of graphs for ground wave in groups of a few channels to cover the band. Ground wave distances on the low end of the band are MUCH greater than on the high end. 73, Jim K9YC ______________________________________________________________ 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 Message delivered to [hidden email] |
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Not unlike the mystique of 160M propagation at times, 630M is much more
complex than just reducing propagation paths to primarily ground wave. This winter, while rather anemic in respect to overall propagation, has presented some interesting communication opportunities. On at least two occasions, there have been viable openings between here (WPA) and Texas where JT9 QSOs were successfully completed at mid-day running less than 10W ERP on both sides. The suspected path is via D-layer due to less absorption than normal, though, absorption probably still being high. The QSOs are documented here: http://njdtechnologies.net/a-midday-surprise-jt9-wg2xjm-wg2xiq/ http://njdtechnologies.net/the-daytime-surprises-on-630-meters-continue/ Some basic discussion on MF propagation: http://en.wikipedia.org/wiki/Medium_frequency#Propagation and if you really want some thought provoking reading on 630M propagation (incl. effects of moon phase, equinoxes, etc.), go to the 600M mailing list archives: http://w7ekb.com/pipermail/600mrg_w7ekb.com/ and search for posts by "James Hollander" (W5EST), who has been exploring and discussing various propagation phenomena based on the experimental activity on the band. Some examples ("Quartile Method of Characterizing 630m Propagation Paths"): http://w7ekb.com/pipermail/600mrg_w7ekb.com/2015-February/007945.html http://w7ekb.com/pipermail/600mrg_w7ekb.com/2015-February/007946.html http://w7ekb.com/pipermail/600mrg_w7ekb.com/2015-February/007947.html http://w7ekb.com/pipermail/600mrg_w7ekb.com/2015-February/007948.html On another note, Larry, W7IUV, is performing comparative testing of various probe (PA0RDT, W1VD) and eventually Flag/Loop style RX antennas against a 600ft BOG as the standard. Information can be followed by going to the above 600M mailing list archive as well. 73 Eric NO3M / WG2XJM (630M Part-5 op) On 02/23/2015 01:01 PM, Jim Brown wrote: > On Mon,2/23/2015 12:10 AM, Edward R Cole wrote: >> Most propagation is ground wave which does not extend as far as HF. >> Best propagation is in winter and at night when a little sky wave is >> seen. > > A clarification. The strength of ground wave propagation increases > with decreasing frequency. The FCC Rules for the AM broadcast band > include a family of graphs for ground wave in groups of a few channels > to cover the band. Ground wave distances on the low end of the band > are MUCH greater than on the high end. > > 73, Jim K9YC > ______________________________________________________________ ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by ejkkjh
Jim and all:
Quite true. My poorly constructed sentence lead to a wrong conclusion about what I was trying to say. I was trying to say: "to not expect HF world wide skip results on 600m, because ground-wave is the predominant propagation mode (there is some sky wave at night time which is usually best in winter due to lowest atmospheric noise; summer in most regions is accompanied by lots of lightning noise being propagated). On a 70-mile path we made a 3-4 month summer "noon-time" series of tests and my 3w ERP signal was receive consistently at +35 or higher SNR (via ground wave). In fact over that path it appears there is always ground-wave prop. on 600m. Lack of a receiving station at further distance precluded finding the max range. Noise floor varied from -115 to -100 dBm with Inverted-L antenna to SDR-IQ. Here in south-central AK there is a notable lack of lightning noise in summer (which helps). I hear NDB (non-directional beacons) out to 1000 miles in the evening quite regularly. The NDB typically run 25-100w to Marconi-T antennas. My 600m amp is a converted NDB driven by my K3 in TEST mode. 73, Ed - KL7UW saving money to obtain the new SYN boards so I can run down to 472. ---------- Date: Mon, 23 Feb 2015 10:01:13 -0800 From: Jim Brown <[hidden email]> To: [hidden email] Subject: Re: [Elecraft] K3 receive on .474.2 kHz Message-ID: <[hidden email]> Content-Type: text/plain; charset=windows-1252; format=flowed On Mon,2/23/2015 12:10 AM, Edward R Cole wrote: > Most propagation is ground wave which does not extend as far as HF. > Best propagation is in winter and at night when a little sky wave is > seen. A clarification. The strength of ground wave propagation increases with decreasing frequency. The FCC Rules for the AM broadcast band include a family of graphs for ground wave in groups of a few channels to cover the band. Ground wave distances on the low end of the band are MUCH greater than on the high end. 73, Jim K9YC 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: [hidden email] ______________________________________________________________ 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 Message delivered to [hidden email] |
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Having worked coastal marine in Los Angeles for a year while I was
finishing high school, I have some experience on the Holy Frequency and the maritime channels around it. I strongly suspect that it's still the same [only devoid of ships] today, physics doesn't change much over time. 1. Coastal marine stations are located on coasts and ships are afloat in the ocean [this shouldn't surprise anyone :-)]. Consequently, propagation was over salt water which for MF ground wave is an order of magnitude better than over land. At night, NMO [Honolulu] was strong in So Cal, a path of around 2,500 mi [~4,000 km] 2. Our MF TX ran 5 KW to a very large, almost full size dual Marconi-T. I believe NMO ran 7 KW to an equally large antenna. They never had problems hearing us. KPH, KFS, and NMC [SF Bay area, about 400 mi (~650 km])] were also very strong, a land path but along the coast. 3. NMC transmits NAVTEX on 518 KHz, or at least did a couple of years ago when I last listened. They're about 120 miles from me, and are very strong. 4. Ships ran a lot less power to more compromised antennas and 700-1,000 mi GW range was doing good. Some of the floating RO's told me they heard us a lot better than we heard them, even on our beverages. 5. I'd say that, if you get several hundred miles on 495-510 KHz at night limited to 20 watts ERP, you're doing very good. 73, Fred K6DGW - Northern California Contest Club - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 - www.cqp.org On 2/23/2015 2:09 PM, Edward R Cole wrote: > Jim and all: > > Quite true. My poorly constructed sentence lead to a wrong conclusion > about what I was trying to say. I was trying to say: "to not expect HF > world wide skip results on 600m, because ground-wave is the predominant > propagation mode (there is some sky wave at night time which is usually > best in winter due to lowest atmospheric noise; summer in most regions > is accompanied by lots of lightning noise being propagated). ______________________________________________________________ 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 Message delivered to [hidden email] |
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Not quite true at all Fred, I copy east coast stations on a fairly
regular basis, Eric is one that is a "regular", copy of various signals across the US is daily operation. West coast and Canadian signals are copyable here from before sunset until after sunset almost daily with audible signals, they are running a few watts ERP. My receive antenna so far is a 80 meter dipole fed with open line, shorted at the shack end, 40 ft high. So not a large antenna by ant means and not tuned to 600M. The band is far better than what most people expect, of course the better the antenna the better the results, but there are many on being heard that are running 160 meter antennas with large loading coils and its working quite well. By the way from here to the east coast is 5000 mi. 2500 to you guys in CA. and you guys are like shooting fish in a barrel. 2500 miles is nothing. Some hams in TX have made it to VK and ZL, east coast are crossing the Atlantic on good nites. 73 Merv K9FD/KH6 WH2XCR > > 5. I'd say that, if you get several hundred miles on 495-510 KHz at > night limited to 20 watts ERP, you're doing very good. > > 73, > > Fred K6DGW > - Northern California Contest Club > - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 > - 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 Message delivered to [hidden email] |
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Merv,
Do you use an ATU on your RX antenna? Phil W7OX On 2/23/15 4:11 PM, Merv Schweigert wrote: > Not quite true at all Fred, I copy east coast > stations on a fairly regular basis, > Eric is one that is a "regular", copy of > various signals across the US is > daily operation. West coast and Canadian > signals are copyable here > from before sunset until after sunset almost > daily with audible signals, they > are running a few watts ERP. > My receive antenna so far is a 80 meter dipole > fed with open line, shorted at > the shack end, 40 ft high. > So not a large antenna by ant means and not > tuned to 600M. > The band is far better than what most people > expect, of course the better the > antenna the better the results, but there are > many on being heard that are > running 160 meter antennas with large loading > coils and its working quite > well. > By the way from here to the east coast is 5000 > mi. 2500 to you guys in CA. > and you guys are like shooting fish in a > barrel. 2500 miles is nothing. > Some hams in TX have made it to VK and ZL, east > coast are crossing the > Atlantic on good nites. > 73 Merv K9FD/KH6 WH2XCR >> >> 5. I'd say that, if you get several hundred >> miles on 495-510 KHz at night limited to 20 >> watts ERP, you're doing very good. >> >> 73, >> >> Fred K6DGW >> - Northern California Contest Club >> - CU in the 50th Running of the Cal QSO Party >> 3-4 Oct 2015 >> - 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 Message delivered to [hidden email] |
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No, no tuner used at all, with the feeders tied together its like a
random wire and I feed it into the receiver. Have plenty of band noise so dont think a tuner would do much better, My location is very low in man made noise, no neighbors and the utilities are all underground. Merv > Merv, > > Do you use an ATU on your RX antenna? > > Phil W7OX > > On 2/23/15 4:11 PM, Merv Schweigert wrote: >> Not quite true at all Fred, I copy east coast stations on a fairly >> regular basis, >> Eric is one that is a "regular", copy of various signals across the >> US is >> daily operation. West coast and Canadian signals are copyable here >> from before sunset until after sunset almost daily with audible >> signals, they >> are running a few watts ERP. >> My receive antenna so far is a 80 meter dipole fed with open line, >> shorted at >> the shack end, 40 ft high. >> So not a large antenna by ant means and not tuned to 600M. >> The band is far better than what most people expect, of course the >> better the >> antenna the better the results, but there are many on being heard >> that are >> running 160 meter antennas with large loading coils and its working >> quite >> well. >> By the way from here to the east coast is 5000 mi. 2500 to you guys >> in CA. >> and you guys are like shooting fish in a barrel. 2500 miles is nothing. >> Some hams in TX have made it to VK and ZL, east coast are crossing the >> Atlantic on good nites. >> 73 Merv K9FD/KH6 WH2XCR >>> >>> 5. I'd say that, if you get several hundred miles on 495-510 KHz at >>> night limited to 20 watts ERP, you're doing very good. >>> >>> 73, >>> >>> Fred K6DGW >>> - Northern California Contest Club >>> - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 >>> - 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 > Message delivered to [hidden email] > ______________________________________________________________ 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 Message delivered to [hidden email] |
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Thanks, then I'll give it a try on RX, since my K3
has that capability now. Alas I'm in a high noise area, so we shall see! 73, Phil W7OX On 2/23/15 4:50 PM, Merv Schweigert wrote: > No, no tuner used at all, with the feeders > tied together its like a random wire > and I feed it into the receiver. > Have plenty of band noise so dont think a tuner > would do much better, > My location is very low in man made noise, no > neighbors and the utilities are > all underground. > Merv >> Merv, >> >> Do you use an ATU on your RX antenna? >> >> Phil W7OX >> >> On 2/23/15 4:11 PM, Merv Schweigert wrote: >>> Not quite true at all Fred, I copy east coast >>> stations on a fairly regular basis, >>> Eric is one that is a "regular", copy of >>> various signals across the US is >>> daily operation. West coast and Canadian >>> signals are copyable here >>> from before sunset until after sunset almost >>> daily with audible signals, they >>> are running a few watts ERP. >>> My receive antenna so far is a 80 meter dipole >>> fed with open line, shorted at >>> the shack end, 40 ft high. >>> So not a large antenna by ant means and not >>> tuned to 600M. >>> The band is far better than what most people >>> expect, of course the better the >>> antenna the better the results, but there are >>> many on being heard that are >>> running 160 meter antennas with large loading >>> coils and its working quite >>> well. >>> By the way from here to the east coast is 5000 >>> mi. 2500 to you guys in CA. >>> and you guys are like shooting fish in a >>> barrel. 2500 miles is nothing. >>> Some hams in TX have made it to VK and ZL, >>> east coast are crossing the >>> Atlantic on good nites. >>> 73 Merv K9FD/KH6 WH2XCR >>>> >>>> 5. I'd say that, if you get several hundred >>>> miles on 495-510 KHz at night limited to 20 >>>> watts ERP, you're doing very good. >>>> >>>> 73, >>>> >>>> Fred K6DGW >>>> - Northern California Contest Club >>>> - CU in the 50th Running of the Cal QSO Party >>>> 3-4 Oct 2015 >>>> - 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 Message delivered to [hidden email] |
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In reply to this post by Merv Schweigert
Hey Merv, just the messenger here, experiences I actually had from a
long time ago. Keep in mind, our job was to handle paid traffic. Hearing them and actually making money getting/sending traffic were somewhat different endeavors. The only "emergency" I got to work was a ship who had lost power in the S. Pacific. No one sank ... no one even got wet. We had them QRK4-5, NMO was QRK 1 on the Holy Frequency, so I got to work the "rescue," by another company ship. The original Gibson Girls were 600 meters, balloon or kite antenna, copper braid and weight to toss into the salt water over the side of the rubber raft. When we got ours on our missions [all on mountains], they had added an 8 Mcs rockbound emergency frequency because 500 Kcs didn't work real well over land paths then. It still doesn't. Receivers have improved dramatically since the later 50's, we can hear things today that were not audible then. I'm not surprised things are working better now 600 meters propagates a lot better over salt water than land, fairly basic physics. That was the only point. And a possible apocryphal story: When the WW2 surplus began flooding the market in the US in the early 50's, the Gibson Girls already had the 8MHz frequency, 8280 if my memory serves me ... which it often doesn't. The story says it got changed to 8365 because people bought these things dirt cheap and did not know that when they cranked them, they transmitted. Just the historical messenger Merv. 73, Fred K6DGW - Northern California Contest Club - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 - www.cqp.org On 2/23/2015 4:11 PM, Merv Schweigert wrote: > Not quite true at all Fred, I copy east coast stations on a fairly > regular basis, > Eric is one that is a "regular", copy of various signals across the US is > daily operation. West coast and Canadian signals are copyable here > from before sunset until after sunset almost daily with audible > signals, they > are running a few watts ERP. ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by Edward R Cole
For just receiving on 474.2kHz, you do not need a fancy antenna. Here are my results from overnight monitoring just using my standard 80/160m inverted V with the center at 50’. This seems to be typical reception, out to 3000km.
Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km 2015-02-25 09:56 WG2XKA 0.475723 -17 0 FN33lq 1 WA8JXM EM88cr 1054 2015-02-25 09:54 WG2XJM 0.475775 -12 0 EN91wr 5 WA8JXM EM88cr 456 2015-02-25 09:54 WD2XSH/15 0.475726 -25 0 EM34rt 2 WA8JXM EM88cr 892 2015-02-25 08:30 WH2XGP 0.475688 -28 0 DN07dg 10 WA8JXM EM88cr 3040 2015-02-25 04:46 WG2XIQ 0.475609 -14 0 EM12mp 5 WA8JXM EM88cr 1366 2015-02-25 04:00 WG2XXM 0.475711 -7 0 EM15lj 2 WA8JXM EM88cr 1231 2015-02-25 04:00 WH2XND 0.475630 -24 0 DM33xt 1 WA8JXM EM88cr 2580 ______________________________________________________________ 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 Message delivered to [hidden email] |
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Is this some form of WSPR or QRSS? Neither existed when the Holy
Frequency was the world's party line, and copying traffic with cans and a mill with negative SNR's is definitely hard. :-) It is true however that with today's signal processing capabilities, "conductor in the air" will work pretty good as a receiving antenna at MF. I ran a single wire from the base of my flag pole on the corner of the deck into the shack and I can find a number of NDB's at the 200-400 km range. KPH booms in on Saturdays on 426 KHz. I'm anxious to try the new synthesizer at MF, there is some 80 meter leakage using my Palomar up-converter that should disappear and now that LORAN-C is QRT, things are fairly quiet. 73, Fred K6DGW - Northern California Contest Club - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 - www.cqp.org On 2/25/2015 3:19 AM, Ken wrote: > Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km > > 2015-02-25 09:56 WG2XKA 0.475723 -17 0 FN33lq 1 WA8JXM EM88cr 1054 > 2015-02-25 09:54 WG2XJM 0.475775 -12 0 EN91wr 5 WA8JXM EM88cr 456 > 2015-02-25 09:54 WD2XSH/15 0.475726 -25 0 EM34rt 2 WA8JXM EM88cr 892 > 2015-02-25 08:30 WH2XGP 0.475688 -28 0 DN07dg 10 WA8JXM EM88cr 3040 > 2015-02-25 04:46 WG2XIQ 0.475609 -14 0 EM12mp 5 WA8JXM EM88cr 1366 > 2015-02-25 04:00 WG2XXM 0.475711 -7 0 EM15lj 2 WA8JXM EM88cr 1231 > 2015-02-25 04:00 WH2XND 0.475630 -24 0 DM33xt 1 WA8JXM EM88cr 2580 ______________________________________________________________ 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 Message delivered to [hidden email] |
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Yes, my apologies for not clarifying, it is WSPR.
The reports are taken from http://wsprnet.org/drupal/wsprnet/spots anyone can get a quick look at current activity at http://wsprnet.org/drupal/wsprnet/map Just specify MF for the band if you want to see 474 kHz activity. Ken WA8JXM > On Feb 25, 2015, at 6:21 PM, Fred Jensen <[hidden email]> wrote: > > Is this some form of WSPR or QRSS? Neither existed when the Holy Frequency was the world's party line, and copying traffic with cans and a mill with negative SNR's is definitely hard. :-) It is true however that with today's signal processing capabilities, "conductor in the air" will work pretty good as a receiving antenna at MF. I ran a single wire from the base of my flag pole on the corner of the deck into the shack and I can find a number of NDB's at the 200-400 km range. KPH booms in on Saturdays on 426 KHz. ______________________________________________________________ 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 Message delivered to [hidden email] |
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