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Current Operating Frequency and Mode

Probably QRT tonight and in the morning due to storms in the area

One of the strongest sessions of the season including high latitude transcontinental QSO’s between W0YSE <-> NO3M and W7IUV, VE7SL <-> WA3ETD; Solar wind stream not as big as expected but another G1 storm possible in coming days may mean more enhancement; Strong night of trans-Pacific openings including Many JA’s for VK4YB, K9FD and KL7L; W7IUV, VE3CIQ -> LA2XPA, K5DNL -> F5WK; Jim, W5EST, presents ”630m WSPR: Pre-Sunset QSB Cycles”

– Posted in: 630 Meter Daily Reports, 630 Meters

The details for November 28, 2016 can be viewed here.

The UTC amateur registration database is here.

HERE are a few mode-specific comments addressing where modes are located now and probably where they are best placed in the future

Operator lists detailing stations that are two-way QSO-capable can be viewed here.

Spot stations calling CQ on any mode here on DXSummit and help them find a QSO


Storms in the Gulf of Mexico and parts of the Caribbean were the main lightning-noise sources for North America during this session.  A few storms were observed in coastal British Columbia although stations in that area did not report noise problems.  Northern Europe and the eastern Mediterranean were active overnight once again and Oceania continues to experience strong storms over the same areas that have been impacted in recent days.

11-hour worldwide lightning summary


Geomagnetic conditions are quiet to unsettled. Solarham indicates that the expected solar wind stream that might have brought G1 storm conditions for this session has largely fizzled, resulting only in unsettled Kp levels but another chance is possible on November 29.   The Bz is pointing to the North this morning and solar wind velocities are averaging near 435 km/s. DST values peaked during the early evening in North America and began a rapid progression to slightly negative levels, which is often representative of an onset of active geomagnetic conditions and probably the arrival of enough solar wind to result in  unsettled conditions.




The onset of solar wind, even if less than expected, seems to have been beneficial for propagation as evening band conditions were extremely enhanced including high latitude transcontinental openings that were subject to strong QSB.  This was a very good session with many big signals and big openings that are probably only experienced at these levels only a handful of times each season.

Reverse beacon report details for the session follow:


PSKReporter partial digital station distributions follow (Note that I believe this map contains considerable band errors so the data may be more inflated than what was actually observed):

courtesy PSKReporter


Jim, W5EST, submitted the following screen captures of his WSJTx console showing JT9  decodes at his station in Little Rock, Arkansas (click to enlarge):







The following stations provided reports of their two-way QSO’s as well as any additional activity that might have occurred during this session (this is not necessarily a complete list – only what was reported!):

Neil, W0YSE, reported a great night with some of the highlights to follow:

The highlight of this session was my JT9 QSO with Eric, NO3M around 10:45 PM PST (0645z). Eric was -25 and he gave me a -23 with a best of -20 which blew me away. That might seem odd until you factor in the awesome RX system he has with his circle 8 array and other antennas. By contrast, my vertical attached to the side of the house cannot compete with that for receiving.

Much earlier in the evening Toby, VE7CNF and I had another WSQcall experiment. I was surprised and happy that you were able to decode some of it down there in Texas, John. This program has some promise for us on LMF.

I was able to listen to Steve, VE7SL’s side of a CW QSO with Clint, KA7OEI. Then, later, I copied Clint’s call on a QSB peak.

I had a CW Q with VE7SL with 599, 589 (S,R). Then I heard Steve, K7SF working Steve, VE7SL. However SL was having trouble hearing SF apparently. SF was 200 hertz below SL, and if SL was using a narrow filter that might have been some of the problem ?? I guess it is important to be closer to the same frequency on CW on this band.

My CW was heard by Robert, KR7O down in CA at a 579 at one point in the evening, and later at a 519 RST.

My other JT9 activity resulted in the following Q’s…

KA7OEI (UT) -17, -16 (S,R)
VE7CNF -04, -18
K5DNL (OK) -20, -22 (a first 🙂
N1VF (CA) -18, -20
and another with KA7OEI (UT) -18, -22

Overnight Neil reported the following of his WSPR activity:

My ~1.5w EIRP was decoded by 39 stations including one spot by Eden, ZF1EJ which is rare for me. Here are the ones over 2000 km who heard me…

…and I was able to hear 11, including K9FD in HI, and KL7L in AK.

This morning Neil also reported JT9 receptions for me and  VK4YB:

courtesy W0YSE


Eric, NO3M, completed a very long  transcontinental JT9 QSO with W0YSE.  Eric indicated that he “…was listening on 8-circle and 2x1000ft beverage array into 2 receivers feeding 2x WSJTx.”  During this QSO Eric reported a power problem with his main PA but has a workaround until the problem is solved permanently.  Eric also called KA7OEI several times with JT9 in the mid evening but Clint was not hearing him at the time.  They completed a JT9 QSO a bit later.  Eric also worked CF7MAY using JT9.

John, WA3ETD reported JT9 QSO’s with K9MRI,  K2BLA, VE3CIQ, VE7SL and W7IUV.  The QSO with VE7SL took 30 minutes to complete but along with the JT9 QSO with W7IUV, this represents amazing, long haul transcontinental openings at higher latitudes.  John added that for receive he “…Ran on probe for Steve, Larry  –  beat out the LNV tonight…”  Using WSPR overnight, John reported sixteen stations and he received reports from sixty unique stations.  John noted that “…had it cranked way down, probably only 40W TPO, for me thats no more than 1 EIRP.  Was heard by MERV [K9FD]!

Steve, VE7SL, had a prosperous session, completing CW QSO’s with KA7OEI, K7SF, W0YSE and KB5NJD.  Using JT9, Steve completed JT9 QSO’s with WA3ETD, KB5NJD, K9FD and CF7MAY.

Al, K2BLA, reported “…lots of activity on JT9 last nite cud hear stns calling “DX”, mostly W7 and new to me but could not hear them. Did wk WA3ETD, a new one, couple “regulars” WSPR: hrd by 48 hrd 16”  Al also worked KB5NJD at sunset in Texas at uncharacteristically strong levels as well as K5DNL.  This morning he worked ZF1EJ.

Larry, W7IUV, completed a CW QSO with KA7OEI during the evening.  He also worked WA3ETD, K9FD and K9SLQ using JT9.  Larry was  heard by LA2XPA using WSPR.

Ken, K5DNL, completed JT9 QSO’s with K2BLA and W0YSE.  Overnight using WSPR, Ken decoded 21 stations and he received reports from 96 unique stations including F5WK, ZL2AFP and ten Canadian stations.  He shared two-way WSPR reports with K9FD (/KH6),  ZF1EJ and VE3CIQ.

Ted, KC3OL, completed an “initial” JT9 QSO with K9MRI.

Joe, K9MRI, reported JT9 QSO’s with WB4JWM and N9RU

Ben, N1VF, completed a JT9 QSO with W0YSE and indicated his best WSPR report yet by NO3M on a long transcontinental opening.

Phil, VE3CIQ, completed a JT9 QSO with WA3ETD and was heard here in Texas at KB5NJD.  QSB being brutal, a QSO was not completed here but we have worked in the past.  Operating WSPR overnight, Phil received reports from both LA2XPA and K9FD, both of which, he indicates, does not happen on the same night very often.

VE3CIQ session WSPR summary


Roger, VK4YB, reported “Usual static, worked VK4AQJ and VK5FQ on JT9. PSK reporters included W0YSE, VE7SL and the inevitable Twins.[VE6XH and VE6JY]”

Ken, SWL-EN61, indicated that while listening with WSPR, he heard “…23, 7 decodes K9FD, new wspr rx N1VF.

Mike, WA3TTS, reported that from his WSPR listening session, he heard “…23 overnight incl k9fd, f5wk, n6gn, w0yse, w7iuv, ka7eoi, zf1ej…

Robert, KR7O, reported that he experienced

“…Average conditions, but quite a bit of CW activity in the evening.  Heard by 11 on WSPR at 200mW TPO, including AL7RF in NV.  Hopefully a new state active soon.  Heard 20, including K4SV (24 spots, -19), W4BCX (-26), ZF1EJ

ZF1EJ – 2 spots, -26
KL7L – 65 spots, -10 (very good opening)
K9FD – 82 spots, -4
VK4YB – 10 spots, -23

Glenn, N6GN, indicates that while using WSPR he decoded sixteen stations and he received reports from 54 unique stations.  Glenn added that “This included hearing VK4YB as strong as -25, being spotted the furthest East by N1BUG 4439 km,  the usual two-way spots with K9FD/KH6 (hearing/heard -8/-2)  and KL7L (-13 /-13) along with squeaking by the longest yet overland two-way  to the East with K4SV -29/-27 at 3608 km.”

The session started and ended strong at KB5NJD.  I started the evening listening to JT9 as I was doing late afternoon / early evening chores and saw K2BLA calling CQ around my sunset.  He was strong here so I called him and we completed a quick QSO.  Recent sunset calls have not yielded such positive results but that may be a testament to quiet band conditions in Florida.  After dinner, W0YSE and VE7CNF were preparing for a test of WSQCall, the new program from ZL1BPU.  I setup in receive mode and actually decoded Neil’s free-form message:

W0YSE on WSQCall at KB5NJD


This was exciting and this mode may grow legs as far as weak signal digital chat modes are concerned.  Following this, I called CQ a bit on JT9 and completed a JT9 QSO with WB4JWM who seemed to be hearing better during this session although it may have been the result of enhanced East / West propagation.  This was followed by another quick QSO with VE7SL.

Just a bit of the JT9 activity at KB5NJD


I transitioned to CW and called CQ for a bit on 474.5 kHz, receiving an email report from Bob, W8ATH, who indicated that I was RST 569 in QRN with a QS1R SDR and beverage.  Bob indicates that his transmit capabilities are not up and running yet.  Around this same time, KR7O clued me in that KA7OEI was calling CQ on CW.  He was very weak but I tightened up the filters and started to hear him a bit better.  During a QSO with W7IUV, Clint peaked a bit but was headed down by the time I called him.   We did not complete a QSO as K7SF was apparently also on frequency and weak signals, very slow CW and QSB meant that this was probably not going to happen tonight.  I did make a recording, however, during one of the peaks, which actually sounds better after a bit of audio processing, but this QSO for a new mode-state was not going to happen tonight:


Following this QSO attempt, I heard Steve, VE7SL, calling CQ on 473 kHz and he was a true RST 589.  I asked on the ON4KST chat who it was as Steve was sending his callsign.  He sounded like he was down the street.  We completed a quick QSO, which was good because by the time we were signing, Steve was inaudible.  QSB was brutal.  I called CQ a bit longer, receiving a few verbal reports on the chat and thought I had a caller.  KC3OL indicated that W9XA was calling but I never heard him while listening in that direction.  There was a bit of noise toward Wisconsin at the time.  Hopefully something is left over for tonight and we see good band conditions and propagation again I am realistic in saying that this rarely happens.

This morning I started on CW later than normal.  There were a few Reverse Beacon Network reports from the East coast but I transitioned to JT9 for a bit before having a real chance to be heard in VE6.  K2BLA was strong again but there was no copy on VK4YB.  Al indicated that he was just about to transition to CW and call me but QSB sent my signal tumbling.  My guess is that we would have missed one another as I was transitioning to JT9.  I will probably start the session listening on JT9 again tonight as its easier to do this while getting early evening household stuff done but will transition to CW at some point.

Hideo, JH3XCU, submitted this link detailing DX -> JA WSPR decode totals and DX -> JA WSPR S/N peaks for the session, as reported on the Japanese language 472 kHz website.

Trans-Pacific WSPR report details, excluding KL7 and KH6, can be viewed here.  The trans-Pacific WSPR summary follows:







Trans-Atlantic WSPR report details can be viewed here.  The trans-Atlantic WSPR summary follows:





Regional and continental WSPR breakdowns follow:

North American 24-hour WSPR summary


European 24-hour WSPR summary


Asiatic Russian 24-hour WSPR summary


Japanese 24-hour WSPR summary


Oceania 24-hour WSPR summary


Eden, ZF1EJ, completed a JT9 QSO with K2BLA this morning.  Using WSPR overnight, Eden reported fifteen stations. He received reports from fifty unique stations.  He shared two-way reports with K9FD.

ZF1EJ session WSPR summary


Laurence, KL7L, indicated by 0035z that he was QRV, looking over the pole, noting just an hour later that the band was open very early between KL7 and VE6.  Laurence added that the path to the Pacific Northwest was very hot.  Using WSPR overnight, Laurence reported nine stations and he received reports from 25 unique stations. He shared two-way reports with K9FD, KA7OEI, KR7LA, N1VF, N6GN, NU6O, W0YSE and W7IUV.  Select DX report details can be viewed here.

KL7L session WSPR summary


Laurence will be traveling to Hawaii shortly and indicates that he has notified UTC of two locations on Maui that he will operate.  He hopes to complete a two-way QSO with K9FD (/KH6) while there.  We will see if its possible to communicate with others on the mainland.

courtesy KL7L


Merv, K9FD (/KH6), completed a JT9 QSO with W7IUV and VE7SL.  K0KE was also in the mix but no response was receive after an initial call.  Merv indicated recent very good propagation at his sunset and this session was no exception.  Using WSPR overnight, Merv reported 22 stations. He shared two-way reports with VK4YB, ZF1EJ and KL7L. Merv received reports from 53 unique stations including 7L1RLL4, JA1PKG, JA3TVF, JE1JDL, JH3XCU, VK2XGJ  and ZL2AFP.  Select DX report details can be viewed here.

K9FD session WSPR summary


Jim, W5EST, presents “630M WSPR: PRE-SUNSET QSB CYCLES”:

“Today’s illustration shows more late afternoon visual reception of K5DNL’s WSPR signal 430 km eastward at W5EST.  Two cycles of QSB occurred during about one hour before local sunset (SS).  Visual detection via the WSPR-X waterfall outperforms the WSPR-X decoder to the tune of 14 visible K5DNL bars to 6 actual decodes of K5DNL at 475.712 KHz.

As in the last couple of days of blog posts, I imagine that K5DNL sky wave is strengthening in the late afternoon descending sun. Meanwhile, K5DNL ground wave remains constant in strength at constant distance and presumably constant phase.  Phasing between 630m ground wave and sky wave when they’re similar in strength produces QSB.
Suppose the sky wave path length were lengthening because of an increasing E-region altitude of reflection. How much would the reflection altitude have to rise to produce two cycles of QSB, i.e., two cycles of phase change? Doing a bit of geometry (Endnote*) suggests the E-region may have risen about 1.5 km  during those two QSB cycles.  Does this happen here other days?  Does it happen at your station?
Further, you can see K5DNL strength has dramatically risen 13 db above afternoon level by 2246z. That’s 13 minutes prior to RX SS and even longer before D-region SS in the sky between central Oklahoma and central Arkansas. By RX SS at 2259z, K5DNL’s strength has risen a still further 5 dB.  I think this rising signal strength information has its own story to tell about changing sun angle and the D-region–if we could figure it out some blog day.
By the way, this visual reception exercise also showed a 2236z instance of a single 475.755 WSPR bar. Why did that happen? That frequency tells us it was KC4SIT at 912 km farther east in Flat Rock NC. (I consulted WSPR database for 2236z decodes 11/26/17.) That singleton WSPR bar emerged 23 minutes pre-SS at the w5est RX and 18 minutes post-SS locally for KC4SIT in Flat Rock NC. (Web search on keywords “Flat Rock NC sunset time” gives 2218z SS there.)  Then, as sun sets in Arkansas, AE5X at 587 km to SSW provides a WSPR bar too.
TU & GL on 630m/2200m !”
*ENDNOTE:  Neglect Earth curvature on this very short path. Ignore possible sky path phase effects of changing D-region in descending sun.  Path length along the ground is a distance D=430 km from K5DNL TX to w5est RX. Assume horizontal late-daytime E-region reflection height hE =100 km. Suppose E-region thickness contracts in late-day sun so that reflection height rises. Change in E-region height ΔhE to produce n=2 cycles of phase change at  λ=630m comes out this way:     
ΔhE=~ n λ/2 sqrt[1+(D/2hE)2]
ΔhE=~ 1.5 km = 2 x 630m/2 sqrt[1+ (430km/2x100km)2] = 630m x 2.37 .

click to enlarge



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