12 May 2016

6m Es and DXTV

There seems to have been a little Es in evidence on 6m WSPR this lunchtime with DL3NGN spotted in the UK. Certainly later in the season we can expect 6m Es most days.

In the old days, DXTV on Band 1 was an almost daily occurrence with RAI (Italy) and TVE (Spain) often seen. These were 625 lines whereas Band 1 TV in the UK was 405 lines. French 819 line TV appeared as 2 visible signals side-by-side on unmodified UK sets. I can remember to this day the Es signal from the South of France broadcasting "midi-Pyrenees". At times it was just like a local!

10m Es

Yet again, 10m WSPR has shown Es propagation in Europe this morning. I guess 10m Es will be with us most days now until late summer. I certainly livens up the band, which can seem very quiet compared with a few years ago.

Southgate News - NOT amateur radio

Southgate News (always worth a look every few days) reports that a NASA commercial cargo spacecraft touched down in the eastern Pacific with a valuable cargo from the ISS.

See http://www.southgatearc.org/news/2016/may/dragon_spacecraft_splashdown.htm .

Nuclear Fusion - NOT amateur radio

There is lots of research going on into nuclear fusion.

Unlike nuclear fission which is used today and results in long-term nuclear waste, nuclear fusion could use the almost endless supplies of non-polluting deuterium in seawater. It is probably decades away from being commercially possible as the technical challenges are immense. Research is starting to yield results though.

Nuclear fusion holds the potential for almost endless, low cost, energy. It could hold the keys to the future, but it is not yet possible, although the research must continue. This is one area where worldwide collaboration would benefit us all.

As for electric cars, although a "good idea" I think range is a real killer. Most journeys are short, I know, but ranges of several hundred miles on a charge are really needed and I just can't see this even with the best battery technology likely in the next few decades. Replacement batteries for electric cards are very expensive. No, this is an area where a lot more research is needed both in transport for the masses in an age beyond carbon and in battery technology. We need some "thinking outside the box" in these areas. Cars that do not need diesel or petrol are essential. We have to crack this one and come up with good solutions.

Sunspots and 10m - Thurs May 12th 2016

Solar flux is 91 today. Sunspot number is 72 (K=2) and the forecast for 10m propagation remains "poor". Some 10m N-S F2 is possible as is short-skip Es.

11 May 2016

BBC programmes under threat? - NOT amateur radio

Who doesn’t love CBeebies? Kids love it, and so do parents. BBC children’s programmes, like CBeebies, allow us those precious few minutes in a day to make a cup of tea. And we can trust that our kids are watching quality TV.

But children's TV as we know it is under threat. It's being reported that the government plans to take money away from the BBC’s children’s programmes. They want to give money-making channels a chance to compete for children’s shows.

The government is expected to announce the cut to the BBC children's budget this Thursday. So a big petition, standing up for advert-free BBC children's television, will show that there's huge public opposition to the government's plans. Please can you sign the petition to save BBC children's television?  See  http://38d.gs/21NJSjN

Personally  I have a problem with children being bombarded with adverts for things they do not need. The BBC is good as it is. There is a danger our government will ruin it.  Save it!

Garden - NOT amateur radio

Another view of the back garden
Not visible are my earth-electrode "antenna" for 630m (are you surprised?) and my end fed wire Par antenna covering 10m, 20m and 40m. This antenna works on other bands with an ATU.  Also out of sight are my 6m, 2m and 70cm vertical V2000 and my 2m horizontal big-wheel omni and 2m halo.

As you can tell, I do not like big, ugly antennas! The garden would fit a 66 foot long wire - maybe next winter?

6m and 10m WSPR

At 1236z I moved to the 10m WSPR beacon (500mW 100% TX) and 6m WSPR (1W ERP 20%, 80% RX, V2000 vertical antenna) simultaneously. It will be interesting to see if there is Es in evidence on 6m too. With 6dB less power on 10m, I expect to get spotted less often.

UPDATE 1325z:  EA1FAQ (1249km) has spotted my 500mW 10m WSPR 2 times so far. Still quite decent reports too.

UPDATE 1445z:  EA1FAQ is now spotting my 500mW 10m WSPR at -12dB S/N, implying that a few milliwatts would have been quite enough. My reports from him are getting better.  No spots yet on 6m WSPR.

10m Es

Within minutes of going on 10m WSPR I am spotting Hungarian stations well by Es. A promising start to what I think will be a good day on 10m.
10m WSPR so far
UPDATE 0934z:  HA9AL is coming in here at a very strong -2dB S/N now. 10m is very good currently to central Europe. This is quite early in the day for Es. 6m is probably good too.

UPDATE 1134z:  Plenty of 10m WSPR Es with lots from central Europe.
The morning on 10m WSPR - clearly Es season!

472kHz (630m) WSPR overnight

Last night I stayed on 472kHz WSPR overnight. I was going to try WSPR on a different band but decided after all to go back on MF.  There are now far fewer active stations than back in the better months. Activity will pick up again come the autumn. No DX spots given or received on 630m WSPR. I think it is now really is the time to pull the plug on 630m WSPR until the autumn.