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Current Operating Frequency and Mode

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

JT9 reports a-plenty for VK4YB at W7IUV; Trans-Pacific openings extend into the East again; VO1NA ->PA0RDT for only Trans-Atlantic opening reported for session; WA2XRM indicates QRV near 480 kHz CW tonight on schedule; W5EST presents: ”MF Band Comparison: Trans-Pacific 630m/160m”

– Posted in: 630 Meter Daily Reports, 630 Meters

The details for September 21, 2016 can be viewed here.

The UTC amateur registration database is hereEven if you don’t think you will use these bands, REGISTER!  Doing so prevents UTC from future PLC coordination in these bands near your QTH.  While amateur interference to PLC systems is a myth and PLC systems are migrating away from RF, there is no reason to give them a reason to do something weird in the future.

Click here to view the proposed “considerate operators” frequency usage guide for 630-meters under Part-97 rules that was developed with the input of active band users.


Storms in the Midwest had staying power as they continue to make noise this morning from Iowa into Ontario.  Evening and late storms in West Texas into Oklahoma made listening difficult in the south central US and forced at least one transmitting station off air.  Parts of the Gulf coast and mid-Atlantic region also experienced a few storms.  All of these systems likely contributed both lightning noise and rain static.  Summer weather patterns continues and so does Summer noise.

11-hour North American lightning summary


Geomagnetic conditions ranged from quiet to elevated-quiet levels. The Bz is once again near unity, pointing slightly to the South in a few instance this morning and solar wind velocities are averaging near 405 km/s.  DST values ranged from slightly negative levels trending downward on the Kyoto measurement to a nice peak followed by a decrease toward the centerline on the Australian measurement.  Both show similar behavior translated to different starting points.



Paul, WA2XRM, reported that he would be QRV tonight on 479.9028 kHz CW from 0300z to 0500z.

Roelof, PA0RDT, reported that VO1NA’s CW signal on 477.7 kHz was slightly better than the previous session:

VO1NA at PA0RDT (courtesy PA0RDT)


Luis, EA5DOM, laments a lack of trans-Atlantic openings for his station but he posted these comments on the RSGB-LF reflector regarding his session success in Europe:


Roger, G3XBM, reported that he returned to 630-meters after a very long hiatus.  He indicates that his “…Antenna is the coax to my 2m “big wheel” via a ferrite rod ATU.”

G3XBM session WSPR activity


Doug, K4LY / WH2XZO, reported  that he decoded seven WSPR stations and he was decoded by 29 unique stations through continuing Summer-like weather and noise in South Carolina.  Doug also wonders what factors are impacting the Southeast’s lack of decodes of VK4YB and notes that KU4XR, who has experienced a lot of recent success decoding VK4YB, is only 189 km to the West but separated by mountains.  It’s an interesting dilemma.

Mike, WA3TTS, reported that he decoded nine WSPR stations overnight.  His best DX for the session was WH2XGP, where he provided fifteen reports,  best at -14 dB S/N at 1030z while using the southwest EWE antenna.   Mike also reported 39 decodes of  ZF1EJ, his best report for the session at -13 dB S/N at 0332z.  Mike also operated a second receiver and antenna with these results:  “TTS/2 on eprobe hrd 7, best XGP -29 @ 1022 and ZF1EJ -26 0242. Moved e-probe to 50ft from house and 30ft up tree…”

Trans-Pacific report details, excluding KL7 and KH6, can be viewed here.

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

Roger, VK4YB, received reports from 7L1RLL4, CF7MM, EJTSWL, JA1PKG, JH3XCU,KJ6MKI, KR6LA, KU4XR, KU7Z, N1VF, VE6JY, VE6XH, VE7BDQ, VE7SL, W0YSE, W6SFH, W7IUV, WE2XPQ, WG2XSV, WW6D and WD2XSH/26. He shared two-way reports with WH2XCR, WH2XGP, WI2XBQ and WG2XXM.  Roger began operating JT9 at 1201z and received a number of reports from W7IUV.  He also added that he completed a JT9 QSO with Steph, VK5FQ.

John, VK2XGJ, reported that an error resulted in early reports not being uploaded.  Below are many of those missing reports:

VK2XGJ early reports, many of which were not uploaded (courtesy VK2XGJ)


Jim, ZL2AFP, received reports from W7IUV which represents the only reports between the North American mainland and New Zealand during this session.

Joe, NU6O / WI2XBQ, provided reports for seven WSPR stations and he received reports from 28 unique stations including VK2XGJ.  He shared two-way reports with VK4YB.

Ken, K5DNL / WG2XXM, provided reports for ten WSPR stations and he received reports from 54 unique stations including VK2XGJ, WE2XPQ and six Canadian stations.  He shared two-way reports with WH2XCR, ZF1EJ and VK4YB with at least one trans-Pacific report coming after sunrise in Oklahoma.

Neil, W0YSE/7 / WG2XSV, indicated that he was listening with two-receivers and two antennas for trans-Pacific reports from VK4YB on JT9 and WSPR. Neil posted in the ON4KST chat that “…at 1232z VK4YB’s wspr is -29 on vert, and -27 on Eprobe here.”  He added after sunrise that he had no JT9 receptions during the session.

Ward, K7PO / WH2XXP, received reports from 51 unique stations including VK4YB and VK2XGJ.

WH2XXP session WSPR activity (courtesy NI7J)


Larry, W7IUV / WH2XGP, provided reports for eight WSPR stations and he received reports from 48 unique stations including VK2XGJ and VK7TW.   As W7IUV, Larry provided reports for nine WSPR stations including VK4YB and ZL2AFP.  Larry provided JT9 reports for VK4YB, detailed below:

1300 -26 0.8 1251 @ CQ VK4YB QG62
1302 -27 0.9 1251 @ CQ VK4YB QG62
1306 -26 0.5 1251 @ CQ VK4YB QG62
1308 -24 0.9 1251 @ CQ VK4YB QG62
1310 -27 0.8 1252 @ CQ VK4YB QG62
1314 -24 0.9 1252 @ CQ VK4YB QG62
1316 -27 0.8 1251 @ CQ VK4YB QG62
1324 -25 1.0 1199 @ CQ VK4YB QG62
1326 -25 0.7 1249 @ CQ VK4YB QG62
1330 -19 0.8 1249 @ CQ VK4YB QG62
1332 -24 0.8 1249 @ CQ VK4YB QG62

Larry indicates that Roger was no longer decoded at six minutes before his sunrise.  Larry observed something during this session that many of us have reported in the past:  “Interesting that my hi lat path to east coast was better last night but path to VK/ZL was down, can’t have both it seems…”  All receptions of Roger were using the West-facing receive antenna at W7IUV.

WH2XGP session WSPR activity (courtesy NI7J)


This session began like the previous with high noise from a storm system in West Texas drifting this direction.  I called CQ on 474.5 CW for a bit starting at 0036z, listening generally East to avoid noise.  I encountered the “Phantom Ditter” again, probably the one from this weekend which must be some ham testing his junk before the band opens but even looking in the opposite direction it was still noisy due to storms in the Midwest so the errant signal was mostly a non-issue.  Andy, KU4XR, reported my CW as I was signing off at 0114z and noted that the signal was good in Tennessee in spite of noise.  I transitioned to WSPR for just a bit, making three calls.  Domestic propagation seemed good but noise was the main limiting factor.  I transitioned to WSPR receive-only overnight, providing reports for eight WSPR stations in QRN while listening omni.  I transitioned to CW this morning around 1000z, calling CQ through sunrise.  I heard a few errant CW blips but nothing definitive in the noise.  The storm system in the Midwest became less of an issue as that area was bathed in full sun and I enjoyed a bit of quite band conditions before sunrise.  Ken, K5DNL / WG2XXM, noted that he was hearing me well this morning at a distance of 200 miles.  It should be noted that Ken and I can work easily at noon during the Summer.

Regional and continental WSPR breakdowns follow:

North American 24-hour WSPR activity


European 24-hour WSPR activity


Japanese 24-hour WSPR activity


Oceania 24-hour WSPR activity


Eden, ZF1EJ, provided reports for six WSPR stations and he received reports from twenty unique stations including WH2XCR.

ZF1EJ 24-hour WSPR activity


Laurence, KL7L / WE2XPQ, provided reports for six WSPR stations including VK4YB and WH2XCR.  Laurence is back in Alaska and indicates that no JT9 reports were found on his console.  He also indicated that there were a number of 1 kHz wide heterodynes from Asian/Pacific broadcast stations including 660AM from Japan.  DX WSPR report details can be viewed here.

WE2XPQ 24-hour WSPR activity


Merv, K9FD/KH6 / WH2XCR, provided reports for twelve WSPR stations including VK5ABN, VK5FQ, ZL2AFP, and ZF1EJ. He shared two-way reports with VK4YB and VK1DSH. Merv received reports from 41 unique stations including 7L1RLL4, EJTSWL, JA1PKG, JA3TVF, JE1JDL, JH3XCU, VK2XGJ, VK3GJZ, VK3ALZ, VK3NFI, VK3WRE, VK5AKK, VK7TW, WE2XPQ and ZL4EI.   DX report details can be viewed here.

WH2XCR 24-hour WSPR activity


Jim, W5EST, presents, “MF BAND COMPARISON: TRANS-PACIFIC 630m/160m”:

“Let’s continue yesterday’s probe of trans-Pacific (TP) propagation by comparing 630m with 160m recently.  Joe NU6O in Eureka CA ran two nights of 20 watts on 160m 9/2-3. Joe’s 9/2/17 run delivered 29 decodes at Leigh VK2KRR’s receiver 12376 km away.  

The middle row of today’s illustration shows the 160m results (red).  At middle left, the 160m decodes are somewhat uniformly spread over -26 to -13 dB, unlike 630m.  At middle right,  the 160m decodes are somewhat more numerous in the 2 hours 11z and 12z, like 630m.

The middle column renders the 1-night SNR sequence for the most prolific individual nights of the respective TX/RX runs.  160m (middle center) reveals a remarkably deliberate SNR dynamic from about 1015z-1330z.  It includes a downward slope from -13 dB down to -26 dB, remarkably lasting about 2.5 hours until sunup.

By contrast, 630m VK4YB-w7iuv (top row center) executes virtually random SNR behavior the following day—quite unlike the 160m behavior in middle center.  At bottom center, even 630m WH2XGP-vk4yb SNRs show considerable randomness, though taken on the same day Sept. 2 as the 160m graph.

Some GMF instability occurred Sept. 2 but does not seem to have affected the comparison, see Kp graph for both days at http://njdtechnologies.net/090317/ . The one-night information sets are understandably limited.  This is the most extensive comparative information I could develop from the last month on WSPR database.

On the basis of this information, I am led to the conclusion that some different propagation modality was at work on the 630m TP path, compared to the propagation on 160m.  What do you think?  Let us know!”

Click to enlarge


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