NJDTechnologies

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

Current Operating Frequency and Mode

CQ 474.5 kHz CW and alternately tuning 472 kHz - 475 kHz for signals.

High noise and propagation backslides a bit but WE2XPQ-> JA1NQI, JH3XCU, JE1JDL; WH2XGP, WI2XBQ -> JA1NQI; Also reasonable openings for VK, KH6 -> JA; WG2XXM experiences good results at QRP TPO; More FT8 in Europe

– Posted in: 630 Meter Daily Reports, 630 Meters

The details for October 10, 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.

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

 

The central US into the Southeast was inundated with lightning-rich storms as a very strong cold front moves across the country.  This system slowed down over night as it was supposed to be out of my area in North Texas by mid evening.  Mexico and parts of the Caribbean are also experiencing active weather conditions and lightning.  High noise was also present in Australia with reports from VK2XGJ indicating the worst listening conditions of the year so far as he struggles to provide reports for WH2XCR.

11-hour North American lightning summary

 

Geomagnetic conditions  were very quiet through this session.  A coronal hole is approaching, however, which may bring storm conditions again over the next few days according to Solarham. The Bz is pointing slightly to the South this morning and solar wind velocities are averaging near 310 km/s.   DST values are stable and at positive levels.  Reports suggest that propagation was retreated a bit but its unclear just how much of that is the result of high noise levels.

 

 

 

Reverse beacon network reports for the session follow:

Courtesy Reverse Beacon Network

 

Roelof, PA0RDT, reported excellent copy of VO1NA’s CW on 477.7 kHz:

VO1NA CW at PA0RDT (courtesy PA0RDT)

 

FT8 activity in Europe included CQ’s by Riccardo, IW4DXW, at 474.2 kHz + 1350 Hz.  David G0MRF reported him at -10 dB to -12 dB S/N at a distance of close to 1000 km.  Jan, LA3EQ, decoded him and attempted a call back but was not heard.  Mal, G3KEV, indicates that he would be QRV tonight on FT8.

Trans-Atlantic report details can be viewed here.

Rob, K3RWR / WH2XXC, provided reports for ten WSPR stations and he received reports from 48 unique stations including G0LUJ/1, G8HUH, LA2XPA and PA7EY.

Dave, AA1A / WD2XSH/17, received reports from 24 unique stations including G8HUH, LA2XPA and PA0RDT.

Ken, K5DNL / WG2XXM, operated QRP at 3.5W TPO while testing a homebrew transverter.  Ken noted that antenna current was so low that he could not measure it but suspect power of about 100 mW ERP.   He provided reports for ten WSPR stations and he received reports from 44 unique stations including eight Canadian stations.  He shared two-way reports with WH2XCR and also noted that QRN was S9 through the session.

Referencing WG2XXM’s QRP work overnight, Andy, KU4XR, submitted this report including details of his receive session:

“Ken – WG2XXM reported that he was running a homebrew Transverter that he built a few years ago. The TPO was a bit over 3 watts.. I did a look up of his transmissions by SNr – dB and had 13 decodes that were at audible CW level … -10 dB is starting to be too much in the noise.. Of course Kens antenna helped get that signal in the ether, but his QRP night gives me ( and possibly others ) hope that QRP power will make contacts.. Thanks for the signal Ken, and good luck all on the new bands:”

Neil, W0YSE/7 / WG2XSV, reported that he was decoded by 28 unique stations, which was down from 39 in the previous session.  Neil added that he “…Got east to N. Minnesota, Michigan, Indiana, and Illinois. NW to Alaska, and to Merv in Hawaii.”  He provided reports for eight legitimate WSPR stations, including WE2XPQ, WG2XXM, WH2XCR, WH2XGP, WH2XXP, WI2XBQ, WI2XJQ, and VE7CNF.  Neil called CQ for a bit attempting to reach a CW skimmer but was unsuccessful during this session.  Similar efforts with JT9 also resulted in no reports on PSKReporter.

Neil successfully decoded WG2XXM’s QRP signals, however:

Roger, VE7VV, reported on the 600-meter research group that:

“When I ran 1W output from my modified Softrock RXTX on 630m the WSPR signal was decoded by many stations with the best DX being 1210 km, this with a 40 ft vertical (plus top loading wire) in the summer. That was a lot of fun to do. JT9 should be able to make contacts over that distance with that power level.”

My experiences was very similar to Roger’s when running very low power.  On a quiet night, QRPPP is not much of an impediment.

Glenn, N6GN / WJ2XBZ, submitted this report for the session from the middle of a literal firestorm in northern California:

“Santa Rosa, CA has had catastrophic fires and we’ve generally lost almost all of our MF WSPR activity. WW6D, who has been a regular spotter on the band has lost his home. Others are without power and wind damage has taken out antennas.  In spite of this and the loss of all the other spotters in CM88, WJ2XBZ managed to come back on the air Tuesday night, 10 Oct UTC.

The antenna continues to be only the 60′ vertical wuickly made from #18 wire and matched with about 1 mH of the same conductor wound up on an old plastic garbage can. The coil  has had to be rewound once because even with only 5W or TX power, the magnet wire insulation arced and created shorted turns and a melted can.  For the new wind of the coil, I took a little more care to maintain more uniform turn spacing and things seem to go better. Ground losses are high, up around 25-45 ohms, so that along with the 180 mOhm radiation resistance and the few-ohms of wire resistance at 475 kHz the match is actually pretty close to 50 ohms, depending on how much I water the two ground rods with the garden hose. A good watering can drop the ground losses by 12 ohms. I calculate about 15 milliwatts ERP when driven with the 5 Watts from the homebrew SDR/PA.

Conditions weren’t quite as good as I’ve seen, although pretty low local (common mode and ground current) noise was achievable.  Noise floor was around -123 dBm/Hz at the start of the evening. I was able to spot 9 unique callsigns while the QRP was spotted by 14 stations. This included two way spots with WH2XCR and WE2XPQ.  All in all pretty good DX for such low ERP and poor ground system.

As the emergency conditions here subside and as winter comes on, I hope to change the antenna type and to have perhaps 17 dB more QRO. In the meantime I will operate as I can, hopefully moving to my Part 97 call, N6GN, by next week.”

WJ2XBZ session WSPR activity

 

Rick, W7RNB / WI2XJQ, provided reports for nine WSPR stations and he received reports from 28 unique stations.  Rick’s unique report details can be viewed here.

Ernie, KC4SIT / WI2XQU, reported that he decoded four WSPR stations and he was decoded by 42 unique stations.  Ernie indicates that the session was down significantly for him compared to the previous session.

Al, K2BLA / WI2XBV, indicated that overnight noise was “awful”.  Nevertheless he provided reports for eight WSPR stations and he received reports from 36 unique stations including WH2XCR, and stations in VE3, VE4, VE6 and VE7.  Al added that his “field intensity pickup loop says I was radiating fraction of a watt…will be fixing pickup loop when grass dries.”

Mike, WA3TTS, reported that he decoded thirteen WSPR stations overnight.  Mike noted that “QRN was S4 to S9 with S9 peaks every second or so from 0200 through about 0440. By 0630 QRN was S2 to S7 peaks every few seconds.  I ran on the e-probe after SS on 630m then NE EWE from 0200 ~ 0440, then NW EWE to sunrise.

Best DX
VE7CNF 2 spots, best -28 @ 0534
WI2XJQ  1 spot          -24 @ 1106
WH2XGP 35 spots, best -11 @ 1052
WH2XXP 38 spots, best -17 @ 1024
WH2XXM (QRP .1W) 34 spots, best -19 @ 0942″

Dave, N4DB, reported that he decoded ten WSPR stations.

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, indicates that “QRN higher and Propagation lower, sums it up down-under. Best chance to hear was early on, while there was still daylight between here and the storms.  After that it was wall to wall static. Best DX was the Alberta twins again with 50 spots at circa 12800 km. Heard 6, heard by 26.”  Roger received reports from JA1NQI, JA1PKG/2, JR1IZM, JE1JDL, N1VF, VA7JX, VE6JY, VE6XH, VE7BDQ, VE7CNF, W7IUV and WE2XPQ.   He shared two-way reports with WH2XCR, WI2XBQ and WH2XGP.

Joe, NU6O / WI2XBQ, provided reports for nine WSPR stations and he received reports from thirty unique stations including ZL2AFP and JA1NQI.  He shared two-way reports with VK4YB.

Ward, K7PO / WH2XXP, received reports from 51 unique stations including ZL2AFP.

WH2XXP 24-hour WSPR activity (courtesy NI7J)

 

Larry, W7IUV / WH2XGP, provided reports for fifteen WSPR stations and he received reports from 51 unique stations including ZL2AFP, ZL2BCG and JA1NQI.  He shared two-way reports with VK4YB.  As W7IUV, Larry provided reports for thirteen WSPR stations including VK4YB.

WH2XGP 24-hour WSPR activity (courtesy NI7J)

 

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 five WSPR stations as he continues in a receive-only capacity to facilitate antenna repairs at his station.

ZF1EJ 24-hour WSPR activity

 

Laurence, KL7L / WE2XPQ, provided reports for eight WSPR stations including VK4YB and he received reports from twenty unique stations including ZL2BCG, JA1NQI, JE1JDL and JH3XCU. He shared two-way reports with VE7CNF, WH2XCR, WG2XSV, WH2XGP, WI2XBQ, WJ2XBZ and WI2XJQ. Laurence indicates that it was a very good night with JA’s for the first time since last spring.  JA1NQI reports arrived just prior to sunrise in KL7.  Much of the Pacific Northwest and WH2XCR were at CW levels.   DX report details can be viewed here.

WE2XPQ 24-hour WSPR activity

 

Kevin, KL7KY, provide reports for WH2XCR and WE2XPQ.  Laurence, KL7L, indicated in an e-mail that Kevin is using his 160m beverages with modified transformers at this time.

KL7KY 24-hour WSPR activity

 

Merv, K9FD/KH6 / WH2XCR, provided reports for fourteen WSPR stations. He shared two-way reports with VK4YB, ZL1EE and WE2XPQ. Merv received reports from 29 unique stations including 7L1RLL4, JA1NQI, JA1PKG/2, JH3XCU, KL7KY, VK4YB, ZL2BCG, ZL4EI and ZL2AFP.   DX report details can be viewed here.

WH2XCR 24-hour WSPR activity

 


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