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

Current Operating Frequency and Mode

OFF AIR but will be QRV on CW somewhere between 472.5 kHz and 475 kHz after dark

SCHEDULED ACTIVITY: CQ 474.5 kHz CW by 1030z through sunrise most days, WX permitting

Central US storm system and slow start turns to strong session with North American trans-Atlantic and trans-Pacific reports; JARL announces more details for their MF and LF Award; VK3ELV –> F6CNI

– Posted in: 630 Meter Daily Reports, 630 Meters

Even though it was noisy in North America due to storms in the central US that ultimately kept my station and others off the air during the session, propagation was very good and long haul paths were open to a number of destinations.

planetary-k-index 032416


Kyoto DST 032416


Australia 032416


Doug, K4LY / WH2XZO, was fortunate to be decoded in Germany once again and provides this report:

WH2XZO report 032416


Doug also provided comments and asks questions following the recent themes brought to us by Jim, W5EST:

WH2XZO comments 032416

Phil, VK3ELV, sent a note about a remarkable very long-haul opening that he received from Andy, F6CNI:

VK3ELV F6CNI 032416

I don’t tend to agree with Andy’s assertion that this WSPR report is invalid because it was not uploaded to the WSPRnet database.  I feel like he has provided ample documentation to show that the 16712 km path between Europe and Australia was open since both stations acknowledge concurrent operation and nothing is out of the ordinary with the report data.  Phil included his reply to Andy and notes very strong domestic band conditions coinciding with this long-haul report:

VK3ELV email 032416

Congrats to both stations on yet another remarkable long haul open path.  The band was clearly very good during this session.  Have I mentioned today that its

Ken, K5DNL / WG2XXM, reports that he only heard seven unique stations during this session but was decoded by 43 unique stations, including DL4RAJ.

John, VK2XGJ, reports that he failed to turn on the WSPR upload in time to catch early reports from WH2XND and WH2XCR but provided a screen shot of his WSPR console and waterfall as evidence.

VK2XGJ 032416

VK2XGJ WSPR console showing reports from WH2XND and WH2XCR that were not uploaded


Similarly, Roger, VK4YB, reported Ron, NI7J / WH2XND, during this session:

WH2XND VK4YB 032416

WH2XND, as reported by VK4YB


The JARL has announced additional details for their upcoming MF and LF awards:


“135kHz-10, SWL-135kHz-10
May be claimed for having contacted (heard) and received a QSL card from each
of the different 10 stations on 135kHz band. For contacts exceeding 10 differe
nt stations, 135kHz -20, -30, -40, -50, -60, -70, -80, -90, -100 will be issue
d. A list of QSL cards should be arranged in alphbetical order of prefix follo
wed by suffix.

475kHz-10, SWL-475kHz-10
May be claimed for having contacted (heard) and received a QSL card from each
of the different 10 stations on 475kHz band. For contacts exceeding 10 differe
nt stations, 475kHz -20, -30, -40, -50, -60, -70, -80, -90, -100 will be issue
d. A list of QSL cards should be arranged in alphbetical order of prefix follo
wed by suffix.

JARL Awards Program

73, Hideo JH3XCU.”


WSPR activity was down due to weather conditions in a number of regions around North America.  Two new or newer stations were reported during this session including N1KSC and WB4JLD.   N1KSC is the Kennedy Space Center ARC and while they had no reports (wrong dial frequency, I think), it was nice to see them listening for active signals.  WB4JLD is not a new stations but has returned after some time away.

Regional and continental WSPR breakdowns follow:

NA 032416

North American 24-hour WSPR activity


EU 032416

European 24-hour WSPR activity


VK 032416

Australian 24-hour WSPR activity


JA 032416

Japanese 24-hour WSPR activity


There were no reports on the trans-African path during this session, however, ZS1JEN was present during the session.  UA0SNV was also present but no reports were found in the WSPRnet database.

Trans-Atlantic reports continue for a few stations in Europe and the US:

DK7FC WD2XSH17 032416

DK7FC, as reported by WD2XSH/17


WH2XZO DL4RAJ 032416

WH2XZO, as reported by DL4RAJ


WG2XXM DL4RAJ 032416

WG2XMM, as reported by DL4RAJ


WG2XXM DL4RAJ2 032416

WG2XMM, as reported by DL4RAJ/2


In the Cayman Islands, Eden, ZF1EJ, and Roger, ZF1RC, provided reports to stations around North America in spite of the noise located on the mainland US.  Eden provided additional comments about his station and recent reports:

ZF1EJ email 032416

ZF1EJ 032416

ZF1EJ 24-hour WSPR activity


ZF1EJ1 032416

ZF1EJ/1 24-hour WSPR activity


ZF1RC 032416

ZF1RC 24-hour WSPR activity


In Alaska, Laurence, KL7L / WE2XPQ, appears to have solved his upload problem and returns to providing reports, including a report for WG2XXM in Oklahoma.

WE2XPQ 032416

WE2XPQ 24-hour WSPR activity


WG2XXM WE2XPQ 032416

WG2XXM, as reported by WE2XPQ


In Hawaii, Merv, K9FD/KH6 / WH2XCR, experienced a reduction of reports from the mainland US due to high noise levels but two-way reports were seen with Australian stations and the Asian path was once again open.  Merv forwarded an email from Roger, VK4YB, posted below.  Merv noted in a follow up email that there is a problem with the 1850z time noted by Roger as it would be well after his sunrise in Hawaii.  Merv indicates that  the time was actually 0850z.

WH2XCR email 032416

WH2XCR 032416

WH2XCR 24-hour WSPR activity


WH2XCR JH3XCU 032416

WH2XCR, as reported by JH3XCU


WH2XCR VK3ELV 032416

WH2XCR, as reported by VK3ELV


WH2XCR VK4YB 032416

WH2XCR, as reported by VK4YB


WH2XCR WE2XPQ 032416a

WH2XCR WE2XPQ 032416b

WH2XCR, as reported by WE2XPQ



In Australia, Phil, VK3ELV, and Roger, VK4YB, both enjoy two-way reports with WH2XCR.  Phil receives additional reports from Japan and Roger provided a report of WH2XND that was noted earlier in this report.

VK3ELV JH3XCU 032416

VK3ELV, as reported by JH3XCU


VK4YB WH2XCR 032416

VK4YB, as reported by WH2XCR


VK3ELV WH2XCR 032416

VK3ELV, as reported by WH2XCR


Jim, W5EST, provided this discussion entitled, “WHO WILL DO THE FIRST 630M DIVERSITY-ENABLED QSO?”:

“Doug WH2XZO K4LY noted dissimilar results of 630m reception of westbound XZO March 21 by NO1D and WH2XND in Arizona. RX separation was 89km. More info 3/21/16, this blog.

A scatterplot Feb. 4, this blog, shows dissimilar WH2XZO SNRs decoded by W1VD (CT) and WG2XKA (VT) in same individual time slots among 115 time slots the night of Feb. 2-3.

Together the results suggest that 630m delivers dissimilar receptions of XZO on both westward and northward paths by remote pairs of stations close-by each other

Diversity technique makes sense when each close-by receiver can add significantly and approximately equally to the receptions of the other.  630m likely has this capability!  See how to make a 4-Quadrant Diversity RX Table to analyze diversity performance by numbers of reception slots (#).

                         4-QUADRANT DIVERSITY RX TABLE

                               RX2 RCVD        RX2 MISSED

RX1 RCVD           #Both rcvd          #Only rx1 rcvd

RX1 MISSED       #Only rx2 rcvd    #Neither rx1/rx2 rcvd

Will any first and second close-by 630m stations cooperate to actually achieve an historic first QSO with a remote 630m station?

The first station could provide a diverse real-time JT9 decode screen image over the Internet for the second station to view along with its own JT9 screen image. The second station would transmit a reply to the remote station  (Feb. 5, this blog.)

What is a QSO when spatial diversity of receiving antennas is involved?  (Feb. 18, ditto.)

Is the day approaching when this blog can report an historic first 630m diversity-enabled QSO?  Show us all!



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