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Moderate improvements on the Trans-Pacific paths as geomagnetic conditions degrade slightly; W5EST presents ”MF/LF Antenna Physical Comparison at WH2XND and WH2XXP”

– Posted in: 630 Meter Daily Reports, 630 Meters

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

IMPORTANT REMINDER: Neither 630-meters nor 2200-meters are open to amateurs in the US yet.  That includes stations using fake or pirated call signs.  Please continue to be patient and let the FCC finish their processes.  UPDATED: 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 and subsequent noise continue for the west and north central US as high pressure remains over the central US.  I would argue that noise levels were moderately worse than the previous session and more storms were active in central and western Canada than recently observed.  Eastern Canada and New England also noted that noise levels were elevated during the session.  The Caribbean and Gulf of Mexico were also active this morning.

11-hour North American lightning summary

 

Geomagnetic activity was a bit elevated overnight, reaching unsettled levels.  The Bz has been variable but is pointing to the North this morning and protons were elevated yesterday morning to moderate levels.  Solar wind velocities are averaging near 730 km/s in the high category, peaking near 770 km/s.  Recent recovery has leveled off and DST levels have begun to head down again.  No details are presented on Solarham as to the cause of this most recent flare up.

 

 

 

Joe, VO1NA, was supposed to be QRV on 477.7 kHz with QRSS10 but so far no reports have been submitted.  Storms in eastern Canada may have complicated activity during the evening.

John, WA3ETD / WG2XKA, reported very high QRN in Vermont.  He decoded seven WSPR stations including session best WH2XGP in Washington State.  John was decoded by fourteen unique station including his session best, VE6XH.

Neil, W0YSE/7 / WG2XSV, completed some antenna work since the previous session and he provided these comments and statistics:

“Got my vertical antenna raised from 40 feet to a whopping 44.5 feet yesterday. Only gained about 1 dB however. I thought the antenna current might increase slightly, but it did not. So…now I am claiming 2 watts ERP on WSPR reports but it is actually 1.85 watts. Add that 1 dB with the increase in my power supply voltage recently (which gave me another dB or so), and it should help some.

Overnight I was heard by 14 stations, 23 times by Merv in HI with a best of -5 (hoorah !!!). I was also decoded by Laurence in AK 2 times (at -22 and -26  🙂    so maybe propagation was better this session from here in SW Washington.  But…. I decoded only 2 stations: Merv 25 times (best of -16), and Larry-XGP 98 times with a best of +12. (Note that Larry comes in here all day long, usually at -13 to -10 even in the middle of the day).

Thanks to all the west coast guys giving me lots of reports every night. Hope to QSO all of you some day soon on 630m.”

Al, K2BLA / WI2XBV, reported very high lightning noise this morning from storms in Florida and parts of the Caribbean.  He indicates that his only report for the session was ZF1EJ.

Dave, N4DB, reported that he decoded WI2XUF, WI2XFI, WG2XKA, WE2XGR, VE3CIQ, and ZF1EJ.  He added that WI2XFI, located in EN80, is only a few miles from where he lived from 1988-2010 but he doesn’t know Ken.

Mike, WA3TTS, reported that he decoded eight WSPR stations using his northwestern EWE antenna including WG2XXM, WE2XGR, WG2XKA, WI2XUF, VE3CIQ, WH2XNG, WH2XXC, and WI2XFI. Mike added that he had no reports for stations in the Pacific Northwest or British Columbia.

Ernie, KC4SIT / WI2XQU, reported that he decoded FT8 signals from David, N1DAY / WI2XUF.

Joe, WA9CGZ / WI2XSV, reported that recent interference from WIND AM is now gone.  It seems that the station was on the air with a backup that is sick.  They appear to have returned to the main transmitter plant.

Trans-Pacific report details, excluding KL7, KH6, and E51, can be viewed here.

Larry, W7IUV / WH2XGP, provided reports for two WSPR stations and he received reports from 25 unique stations including VK2XGJ, ZL2AFP and ZL2BCG.  As W7IUV, Larry provided reports for four WSPR stations including ZL2BCG.

WH2XGP 24-hour WSPR activity (courtesy NI7J)

 

“J”, ZL2BCG, provided reports for five WSPR stations by 1500z and he received reports from thirteen unique stations, including W7IUV and VE6XH.

Last night was noisier than the previous session but I continue some receive testing here which seems to be yielding the desired results.  I operated CW from dark to bed time and repeated the same starting at 0945z until about 1030z as I continue my testing of reverse beacon network and specifically CW skimmer on 630m.  If you have CW Skimmer capabilities at your station, please consider uploading data to the Reverse Beacon Network, particularly as we transition to Fall and Winter where quieter band conditions will prevail.

Regional and continental WSPR breakdowns follow:

North American 24-hour WSPR activity (Note map pollution from a poorly executed band change by a southeastern station)

 

European 24-hour WSPR activity

 

Japanese 24-hour WSPR activity

 

Oceania 24-hour WSPR activity

 

Eden, ZF1EJ,  received reports from eight unique station including WH2XCR.

ZF1EJ 24-hour WSPR activity

 

Warwick, E51WL, provided reports for six WSPR stations.  DX report details up to 1500z can be viewed here.

E51WL 24-hour WSPR activity

 

Laurence, KL7L / WE2XPQ, provided reports for three WSPR stations and he received reports from four unique stations.  He shared two-way reports with WH2XCR.

WE2XPQ 24-hour WSPR activity

 

Merv, K9FD/KH6 / WH2XCR, reported that at the end of the previous session he experienced an Internet failure that prematurely ended the receiving portion of his session.  During this session he provided reports for VK5FQ, ZF1EJ, and ZL2BCG.  He shared two-way reports with WE2XPQ and VK4YB.  He received reports from E51WL, VK2XGJ, ZL2AFP, and ZL2BCG.  Reports from E51WL and VK2XGJ continued after sunrise in KH6 which is a feature that has been missing in recent sessions.  There was also a very late report for VK4YB in KH6.  DX report details can be viewed here.

WH2XCR 24-hour WSPR activity

 

Jim, W5EST, presents, “MF/LF Antenna Physical Comparison at WH2XND and WH2XXP”:

Ron NI7J WH2XND provided text for editing here at W5EST. He and Ward K7PO WH2XXP have provided the photos.  Thank you!

WH2XXP and WH2XND are transmitting 200 watts TPO using the Ward-built W1VD design amp. An LP filter, 137 KHz, also is used. See first two photos #1, #2.
XND TxPct is 50% and XXP had been 20%.  XXP is now 50% also, at least since July 15 on 2200m and July 20 on 630m.
On 475 KHz both stations ran 20% duty cycle, and XND had to more than double TX power to equalize SNRs remotely.  XXP was generally received before XND at the long haul stations–MervWH2XCR Molokai and East coast–and continued to get decodes after XND had fallen below decode threshold that far away. So antennas at XXP and XND are not what one would call equal, which is good. The two different Part 5 experimental stations’ arrangements work very well for prop testing and data recording.
The VK and ZL spots are proof of a path from Arizona to there, thanks to the level of RF output. This is true prop testing day in and day out in all types of solar conditions, and we have learned so much by doing this!
Two photos #3, #4 show the variometer atXXP, which uses the same tower on 137 and 475 KHz.XND usesone tower for 75, 137 and 475 KHzA few components are changed to change band, and anL match does remote tuning from the shack.
Antenna heights at XXP and XND are not too different, but 10 feet of height makes a lot of difference to radiate RF. Height is the most important consideration when doing antenna comparisons. Height dominates all else on these low bands when compared with same top loading.
WH2XXP has 98 ft. of insulated Rohn tower feed approximately two feet off the ground using three #10 solid copper wires that tie all sections together that also ties all caphat wires together.
At WH2XND, 95 ft. total height of one #10 solid tin plated copper wire goes to the center top of the rectangle caphat, with its feed point at the coil house at 7 feet off the ground. (Photo #5, Tuner photo #6)  At XND, #14 gauge caphat wires form a 220 ft. rectangle that is 16 ft. wide. Three additional #14 gauge wires tie the ends and middle feed point together and is fed in the center 16 ft. section. (Photo #7)
Caphat at XXP includes 16 cables at 65 feet each. Total caphat loading is 1040 feet using 0.375 inch cables (3/8”) from local utility company.
WH2XXP has a perfect 360 degree radial field with 200 radials total … 100 radials at 100 feet, 60 radials at 150 feet, 40 radials at 350 to 500 feet.
At WH2XND, a total of 200 #14 insulated radials, 20 radials by 110 ft. in length wrap around the East side of the house. 20 radials wrap around the West side of house at 150ft. in length.  Both East and West side radials end at the house at the two rear yard entry gates. The rest of the radials in the backyard are 70 ft. straight E, W, and North. Corner radials are 85 ft. long. A 60 degree section facing south towards the house has no radials.  (Photo #8: 204 NW radials on E side of house. Photo #9: Southward radials on E and W side of house.
Jim W5EST notes: (For photo #9, I combined two original photos by dubbing in the radial on E side.) You can learn about antenna progress at WH2XXP on this blog 11/1/15, 8/25/16 and 11/20/16.
http://njdtechnologies.net/082516/ (description, scroll 10%)
http://njdtechnologies.net/112016/  (tower photo, scroll 20%).”

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