Radio: it's not just a hobby, it's a way of life

Current Operating Frequency and Mode

OFF AIR for storms, probably for much of the week if the forecast holds

Generally strong domestic propagation and band conditions but noise remains a player in East; Limited trans-Atlantic openings but trans-Pacific openings continue to provide results even if reports are impacted

– Posted in: 630 Meter Daily Reports, 630 Meters

The report from February 9, 2016 can be viewed here.

It was another noisy session here in Texas although it was improved over the previous session.  Stations were dealing with lightning-rich storms in the southeastern US while stations in the northeastern US were experiencing antenna icing and precipitation static.  In both cases, there were a number of missing stations.  Domestic openings were generally plentiful, however, and the band seemed opened.  DX openings were down again but much of that may have been the result of high noise levels or stations remaining off air due to bad weather.

12-hour North American lightning summary


Geomagnetic conditions were quiet with the Bz remaining near unity but experiencing slight variability through the session.  Solar wind velocities were moderate, averaging 420 km/s.  DST values were confusing.  The Australian measurement reported positive values while the Kyoto measurement suggests that the band was profoundly disturbed with a significant decrease overnight.  I am still checking to see if these reports are accurate.  This data goes further than a scaling issue on the graph.  These types of reports are interesting and have been observed before but I have no explanation for what might have caused these reports overnight.




Trans-Atlantic WSPR openings were limited to reports of WD2XSH/17.  Report details for Dave’s signal can be viewed here.

WD2XSH/17 –> F59706, G3XKR, LA2XPA/2, OR7T, PA0O, PA0RDT

Doug, K4LY / WH2XZO, reported that wind and rainn resulted in his transmitter shutting down.  QRN limited his reception to ten WSPR stations but prior to his shutdown he received reports from 53 unique stations.

Rick, W7RNB / WI2XJQ, indicated that it “…appears that conditions were about the same as last session, with limitations of the Mississippi river being about as far as things went.” He received reports from nine WSPR stations and was reported by 26 unique stations.  Rick’s report details can be viewed here.

Paul, N1BUG, reported that he decoded ten WSPR stations.  He had no DX or transcontinental reports.

Rod, VE7VV, was reported to be QRV for the first time in the previous session.  During the late afternoon, he was QRV on CW and JT9, working Steve, VE7SL.  There was quite a big of activity during this time and Toby, VE7CNF,  reported QSO’s between five VE stations.  Not bad for full sun!  Precipitation noise was elevated in several cases.

Larry, W0OGH, reported that he decoded thirteen WSPR stations for a total of 525 decodes between 0130Z and 1444Z.  Larry provided the following data sample:

0130Z    WH2XXP        +10    DM33, WG2XIQ        -10    EM12
0132Z    WH2XGP        -15    DN07, WG2XXM        +3    DM33
0134Z    WD2XSH/15    -21    EM34rt
0246Z    WH2XZO        -23    EM85
0250Z    ZF1EJ        -27    EK99
0334Z    VE7CNF        -17    CN89
0346Z    WI2XRM        -22    EL98
0456Z    WH2XCR        -25    BL11
0540Z    WI2XJQ        -27    CN87
1008Z    WI2XBV        -19    EL99
1320Z    WH2XCR       -25     BL11,  Last Decode
1322Z    Only WH2XXP and WG2XXM were decoded after this time.

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

Roger, VK4YB, reports that he tried a different antenna overnight and provided this single-session assessment:

“Conditions were generally down a bit on last night. Mostly the same stations were there but reports were about 3dB or more weaker. The JA path was well down and no chance of a JT9 QSO.

I tried a new antenna this evening. It is not really new, it is my old 160m vertical but tuned for 630m. It is a 100 ft vertical with a single 40 ft top hat wire on it. There are 100 radials. 4 are 200 ft long and the rest much shorter. Total buried wire is 4000 ft. I originally laid the wires on the ground, but that was twenty years ago. They have buried themselves in the meantime. I put a coil of 580 microHenries in series with the feed point. The coil is tapped so I can adjust the turns in two turn increments. My first guess was pretty good, 1.56:1 SWR. 10 turns one way and it went up to 9.6:1.  Best point was 1.32:1. Photo shows me adjusting the turns.
Results are very interesting. On transmit the vertical was about 4 dB down compared to the NE beam with both VK2XGJ and VK3ELV. WH2XCR heard me best at -20. Bear in mind that John and Phil are off the back of the NE beam.
On receive the vertical was extremely disappointing. No decodes at all, and when I switched to the vertical mid WSPR cycle, the traces all but disappeared.
Obviously I have got a lot to learn about these antennas. Later the SWR shot up on the vertical and tests were abandoned for the night. I will investigate tomorrow.”
Roger received reports from 7L1RLL4, JA1NQI, JA3TVF, JR1IZM, JH3XCU, N6SKM, VE6XH and W1CK.  He provided reports for WG2XXM and WH2XXP.

VK4YB adjusting the series-coil at the vertical feed point


Kiyo, JR1IZM, reported that DX conditions were poor during this session so no JT9 QSO attempt was warranted.

Ken, K5DNL / WG2XXM, reported that he decoded nine WSPR stations and was decoded by 74 unique stations including VK4YB.  Ken received 81 WSPR decodes from WH2XCR with the best report at +1 dB S/N.

Ward, K7PO / WH2XXP, received reports from 72 unique stations including VK4YB, VK2XGJ, and ZL2BCG.

High winds here prevented me from starting by 2300z as I had intended but I was on the air by 0000z with WSPR.  Noise levels were not too bad at this point and even after dark the noise was significantly less than the previous session.  My reception numbers were up a bit and report quality was similar to the previous session but both values are not where they should be for February.  My WSPR transmission report details can be viewed here and my WSPR reception report details can be viewed here.

WG2XIQ 24-hour WSPR activity


There were 138 MF WSPR stations observed at 0110z  on the WSPRnet activity page.

Regional and continental WSPR breakdowns follow:

North American 24-hour WSPR activity


European 24-hour WSPR activity


Central / Asiatic Russian 24-hour WSPR activity


Japanese 24-hour WSPR activity


Australian and New Zealander 24-hour WSPR activity


Eden, ZF1EJ, received reports from nine WSPR stations and was reported by 43 unique stations including two-way reports with WH2XCR.

ZF1EJ 24-hour WSPR activity


Laurence, KL7L / WE2XPQ, experienced a very different session with JA reports from only JA1NQI.  Laurence shared two-way reports with WH2XCR and aside from reports in central Alberta Canada, most reporting stations were located along the West coast of North America. He also indicates that he operated a JT9 beacon during the evening.  Laurence indicates that he expects to be listening from Mexico sometime in late March and expects to be at the same location at which he has had so much success in the past.  DX report details for this session can be viewed here. [UPDATE] Laurence uploaded KL7L data after publication.  The map is appended below and KL7L report details can be viewed here.

WE2XPQ 24-hour WSPR activity


KL7L 24-hour WSPR activity


Merv, K9FD/KH6 / WH2XCR, experienced a very similar night to the previous session, with reports from 7L1RLL4, JA1NQI, JA1PKG, JE1JDL, JH3XCU, JR1IZM, VK2XGJ and two way reports with ZF1EJ, VK4YB and WE2XPQ.  Coverage in the East was limited again likely due to high QRN but he did successfully provide reports for WH2XZO before he QRT’ed due to weather conditions.  Merv’s VK, JA, KL7, and ZF1 report details can be viewed here.

WH2XCR 24-hour WSPR activity


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