1 Jun 2017

10m JT65 again

Once again, I am on 10m JT65. So far, just Europeans by Es. Yesterday was a good day with plenty of South Americans coming through on 10m JT65 in the late afternoon and evening.

UPDATE 2028z: After another good 10m JT65 Es day, it is time to go QRT. Tomorrow I may try 10m WSPR TX and 6m JT65 transceive.

OFCOM and mobile phones on ships - NOT amateur radio

See http://ofcom.createsend1.com/t/ViewEmail/i/742AAB4E823BB885/59D1BD3EA2F08127C67FD2F38AC4859C

OFCOM is consulting on the use of mobile phones on ships.

Sunspots and 10m - June 1st 2017

Solar flux today is 75 . Sunspot number is 11. A=4 and K=1. Widespread 10m Es.

31 May 2017

10m JT65

Conditions seem quite good this morning. On 10m JT65 RX my best DX is UN7DA (5276km). My own signal is being widely copied in Europe by Es. Other notable RX spots include YI3WHR (4186km) in Iraq late last night. I find it hard to believe this is Es. F2 is possible although the time is wrong for F2.

Are these long paths Es with some sort of chordal hop? I have long suspected this sort of mode. I am not a great believer of these being multi-hop Es. It would be interesting to hear what experts have to say.

Sunspots and 10m - Wednesday May 31st 2017

Solar flux is 73 today. Sunspot number is zero. A=7 and K=2. 10m is likely to be livened up by Es in the northern hemisphere.

30 May 2017

TEP and 10m (and 6m)

Newcomers may not be aware that trans-equatorial (TEP) propagation can extend to quite high frequencies. If memory serves me right, the signals cross the magnetic equator by spread-F, a sort of chordal hop. I think 2m has been used to work from Southern Africa to the Med. Today, a number of South Americans have been copied in the UK on 10m JT65.  I suspect this is TEP being extended to the UK by Es. TEP does not usually extend this far north.

Baking - NOT amateur radio

Today, we had all 4 grandchildren (all 9 and under) here for lunch. Here is our elder granddaughter busy baking in the kitchen.

SAQ transmission cancelled

Southgate News reports that the upcoming SAQ CW transmission on 17.2kHz VLF CW has been cancelled due to ongoing maintenance work.  This signal is often a good one to try if testing your VLF system. It is much harder receiving amateur VLF signals.

Often these transmissions result in a QSL card for reports. I have one from years ago.


See http://southgatearc.org/news/2017/may/saq-transmission-cancelled.htm#.WS2KmrpFzIU

Sunspots and 10m - Tuesday May 30th 2017

Solar flux is 74 today and the sunspot number 16. A=10 and K=4.

10m JT65

This morning, I am on 10m JT65. As yet, no spots.

UPDATE 0848z: My 10m JT65 is being spotted in Switzerland and Austria  (Es) and the best DX on RX is the Canary Is.

UPDATE 1000z: Spots so far this morning on 10m JT65.
UPDATE 1614z: Best DX on RX was RA9N (4608km) in Omsk, Asiatic Russia. This is a long way for Es, if indeed this is the mode.

UPDATE 1715z: PY2FA (9580km) and another 3 Brazilians are now being spotted. Could be Es linking with TEP?

UPDATE 1957z: Now 8 South Americans spotted on 10m JT65 plus a couple of stations in the UAE at the far end of the Gulf. Still no spots of my own QRP 10m JT65 outside of Europe. Definitely a good Es day on 10m.

UPDATE 1725z: So far, 5 different Brazilians spotted on 10m JT65 today.