NJDTechnologies

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Current Operating Frequency and Mode

OFF AIR; Storms expected overnight into Saturday morning. Planned start time for WG2XIQ in Field Day demo is 1800z on 474.5 kHz CW, WX permitting

Fair to good night in spite of elevated evening noise in North America with a few trans-Atlantic and trans-Pacific reports

– Posted in: 630 Meter Daily Reports, 630 Meters

Propagation may have been slightly down compared to the previous session but overnight the storm system that has been straddling the US and Mexico and complicating listening began to see lightning strikes diminish.  The same system disrupted my CW activities during the early evening and resulted in less-impressive WSPR report numbers later in the evening but the band is extremely quiet this morning as I call CQ.

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11-hour North American lightning summary

 

Geomagnetic conditions have been very quiet.  The Bz is pointing to the North and solar wind velocities are averaging 318 km/s.  Of particular interest is the persistence of the Kyoto DST at or above unity.  It is rare that you see this indicator exhibiting such long term stability.

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Albert, PA0A, has again been reported by UA0SNV on a very difficult path that has shown improvements for the fourth consecutive session.  Other capable stations were active during this session but only Albert was reported.   It’s interesting to me that never more than a single station is reported in a given session on this path.  The report detail for this opening can be viewed here.

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PA0A, as reported by UA0SNV

 

Trans-Atlantic reports for this session were fewer in number than on previous nights but it seems many were noise-limited by the previously mentioned storm system.  WD2XSH/17 reported EA5DOM and G8HUH and N1BUG reported G8HUH at 2208z “in spite of high noise level”.  An aggregation of trans-Atlantic report details for the session can be viewed here.

Doug, K4LY / WH2XZO, reports a strong night and offers these comments, statistics and analysis for his session:

“Despite higher QRN levels, third night in a row of  good  630M propagation, this time favoring the west and northwest from SC.  Was decoded by only 35 unique stations compared to the all time high of 47 two nights ago.  Decoded 9 unique stations including WI2XJQ which happens rarely.  The 24 decodes by WH2XCR was a record.

The excitement was a single and first time decode by VA7BBG over 4120 km. This is both his longest land path decode and the farthest land path decode of my station. I think it may also be farther than any of the WE2XPQ land path decodes.  It’s still well short of the UA0SNV decodes of PA0A, 5554 km, and DJ0ABR, 5577 km.  A WE2XPQ decode to or from SC would be further, but appears to be less than 100% over land.

My receive antenna situation continues to evolve, and the uncorrected line noise problem, going on months now, is discouraging.  My Double Delta favoring northeast is slightly better than the Wellbrook loop, but being bidirectional, the loop pulls in a lot more stations.  Same limitation for the Super Kaz favoring west.  Therefore I use the loop most of the time.  Last night with thunderstorms to the west, the Double Delta was significantly better than the loop because it nulled some of the western QRN.”

Trans-Pacific report details for this session have been aggregated here.

Ken, K5DNL / WG2XXM, reports that he was decoded by 51 unique stations including WE2XPQ, VK4YB, and WH2XCR.

Roger, VK4YB, received reports from VA7BBG.

Ward, K7PO / WH2XXP, received reports from fifty unique stations includingVK4YB and VK2XGJ.

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WH2XXP session WSPR activity (courtesy NI7J)

 

Larry, W7IUV / WH2XGP, received reports from 49 unique stations including VK4YB and VK2XGJ.

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WH2XGP session WSPR activity (courtesy NI7J)

 

Neil, W0YSE/7 / WG2XSV, reports:

“…Still being heard out east. I think we have two new guys near Rick in the Seattle area.  AC7IJ has copied me the past two nights, and N7DTP was new this session for me.”

wg2xsv-111916

Rick, W7RNB / WI2XJQ,  received reports from 26 unique stations and decoded eight WSPR stations.  His unique report details can be viewed here.

Mike, WA3TTS,  reported transcontinental stations in spite of his high noise level:

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“I ran a split IF dual receive setup overnight with my NW EWE antenna and also logged 108 wspr2 decodes from WH2XND on 2200m, best at -12.   73 Mike wa3tts”
There has been quite a bit of activity from VK6 recently and VK6GJZ posted the following comments about VK6XT in the VK/ZL 600m reflector:
“I had been seeing Richard on 630m WSPR all night, but couldn’t decode, even when his signal was relatively strong.
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VK6XT at VK6GJZ

Richard seems to be right on the edge of the WSPR Band (at 475.600 KHz), so I decided to shift my RX 10Hz lower, and immediately could copy him. So I was thinking that Richard was missing a bunch of decodes by being right on the edge of the band (for the WSPR software)…But then I see that others in the WSPRNET data base are copying Richard just fine (some at an apparent 475.599 KHz). I’m using a GPS locked RFSpace NETSDR+ so I think my frequency readout is accurate… Does anyone know how choosy the WSPR-X software is about signals on the edge of the band?………Zim ……… VK6GJZ”

Larry, W0OGH, in Arizona reported that he visually detected WA2XRM overnight and posted the following comments in the 600-meter research group:

“I was able to copy, at least with ARGO the CW signal from WA2XRM up in Colorado on 480.089 kc (my numbers on my K3 with the signal set at 700 cycles on the ARGO frequency scale.  While never audible and not totally readable, i was able to over a period of time able to decipher enough of the letters to know it was Paul. It’s still the same signal strength here this morning as i write this.  Antenna in use was my 80 meter kinda dipole at 30 ft.

As a side note i changed antenna ports on the K3 from the main coax to the AUX port with no real difference in signal strength although it did eliminate a spurious signal a few hundred cycles higher in freq.

There must be others in the 472-475 kc range i can see?  Seeing Paul’s signal was encouraging as it means i’m not totally in an RF proof hole down here on the MF band.  Larry W0OGH”

Paul, W0RW / WA2XRM, will be QRV again tonight on CW and posted the following announcement on the 600-meter research group email reflector:

WA2XRM will be sending QRSS3 at 2300z, 19 Nov. 2016.  I will be on 479.91x kHz all night.  I am running about 100W to a 30 foot vertical with a top hat.  The amplifier is an IRF540 FET  made by John,  KB5NJD/WG2XIQ.  My DX-100 is toast.  Paul  wa2xrm”

Ken, SWL-EN61, in Indiana reports that he was recently “on the road” again and took an E-probe with him that was absolutely useless at the hotel.  Noise conditions improved late in the evening likely due to people and their QRN / QRM generating electronics calling it a night.  Ken recommends that anyone desiring to listen from a hotel room us a small “hula-hoop” loop rather than a probe due to the loops sensitivity to the magnetic component compared to a probes dominance of the E-field component which is ever present in close-quartered urban environments that hotels so often duplicate.  Ken also adds that he did not try to null noise sources with the loop in previous trips, instead just orienting East and West.  This is all very good advice.

Geoff, G0LUJ, was involved in a very interesting discussion with Doug, K4LY / WH2XZO, during the early evening regarding the KiwiSDR.  This is the same SDR system that Doug has been recently remotely configuring at a number of stations for receive and reporting of WSPR signals on 630-meters.  It seems Geoff is using one of these remarkable receivers that in many ways looks and feels like the WebSDR at the University of Twente that I have mentioned in the past.  I’m way out of my comfort zone at the moment when it comes to software defined radio discussions but it seems that this receiver may show some promise for my remote receiver application  (maybe even diversity reception if the receiver could be GPS locked and Internet latency managed?).  I’m still learning about this and a listening session of active receivers on SDR.hu shows me that at this point I don’t really know what I don’t know, which is a tough position to be in.  I think the first thing I would have to do is improve hardware resources on the machine accessing a receiver via the Internet.  I noticed constant freeze-ups while listening but this could have also been Internet related and a problem on both ends of the “pipe”.  The problem of latency would also have to be addressed.  Even so, this might have interesting possibilities in the future.  Thanks to Geoff and Doug for the discussion.

As previously reported, my well-intentioned CW session start time of 2300z was hampered by QRN that was already making itself well known in full sun, hours before sunset at my station.  Shortly before 0000z I opted to transition to WSPR.  This was an hour earlier than I had intended but it seemed like the right decision under the circumstances.  I received a number of reports from the start although most of the reports were impacted by the noise.  Still, being reported was something.  I found that the multi-turn receive loop was very useful under these noise conditions as I was successful at orienting it broadside to the long line of storms.  I was surprised at the effectiveness, in fact, as I felt like I was listening up and down the line of the storm system itself.  I guess the most intense lightning strikes were in the null.  WSPR reports showed a number of CW level reports, particularly by morning, and even more reports at JT9 levels.  This morning’s CW session saw the return of what sounded like precipitation static beginning approximately ten minutes before sunrise.  It disappeared after local sunrise.  My WSPR transmission reports can be viewed here and my WSPR reception reports can be viewed here.

wg2xiq-111916

WG2XIQ 24-hour WSPR activity

 

This weekend is ARRL Phone sweepstakes and I expect that a number of stations that might otherwise provide reception reports on 630-meters are participating in that event.  At 0100z I observed 99 MF WSPR stations on the WSPRnet activity page.  AC7IJ, N7QR, and N7DTP were receiving in this session and may be new or newer to 630-meters.  Welcome aboard!

Regional and continental WSPR breakdowns follow:

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North American 24-hour WSPR activity

 

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European 24-hour WSPR activity

 

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African 24-hour WSPR activity

 

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Central / Asiatic Russian 24-hour WSPR activity

 

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Japanese 24-hour WSPR activity

 

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Australian and New Zealand 24-hour WSPR activity

 

Eden, ZF1EJ, operated a single station during this session, decoding WH2XCR, WH2XXP, WH2XGP, WG2XIQ, WG2XXM, WH2XZO, and WG2XKA.  Report details for these stations can be viewed here.

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ZF1EJ/1 24-hour WSPR activity

 

Laurence, KL7L / WE2XPQ, continues to report high winds but was able to transmit overnight and had good results.  He shared two-way reports with VK4YB and was decoded by JH3XCU.  He also shared two-way reports with WH2XCR.  Report details for these decodes can be viewed here.

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WE2XPQ 24-hour WSPR activity

 

Merv, K9FD/KH6 / WH2XCR,  shared two-way reports with VK4YB and was decoded by JH3XCU and VK2XGJ.  To the East Merv decoded WG2XKA in Vermont and WH2XZO in South Carolina and he received reports from WA3TTS, KU4XR and ZF1EJ/1.  These last three reception reports are remarkable due to the level of QRN between the mainland US and Hawaii.  Reports continued up to sunrise in KH6 for this session.  Merv’s JA, and VK report details can be viewed here.

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WH2XCR 24-hour WSPR activity

 


Additions, corrections, clarifications, etc? Send me a message on the Contact page or directly to KB5NJD gmail dot (com).