17 Feb 2021

10m FT8 QRP (Wednesday)

Since 0945z, I have been on 10m FT8 with 2.5W and the tiny indoor loop. No spots yet on RX or TX at 1047z.

UPDATE  1840z: No spots all day.

Trump friends - NOT amateur radio

Although ex-President Trump has gone from office, he still seems capable of turning on his (one time) friends. I am amazed that so many voted for him. To those of us outside the USA, he appears to hold grudges. 

See https://www.bbc.co.uk/news/world-us-canada-56092781 .

Transformation - NOT amateur radio

Our local bank has been empty for several years. It is now being converted into commercial units. 

Sunspots - Wednesday February 17th 2021

Solar flux is 71 and the SSN 0. A=15 and K=2. This month, the sunspot count has been dreadful. 

16 Feb 2021

472kHz (630m) WSPR RX

It is now 2030z. A few minutes ago I went on to 472kHz WSPR RX. So far G0MRF (139km) and DL1HWK (816km) copied.

UPDATE 2215z: 5 stations spotted this evening with the furthermost being IZ3QQG (1155km). Still using the earth-electrode "antenna" in the ground.

2m FT8 QRP (Tuesday)

At 1845z, I QSYed to 2m FT8 using 2.5W (FT817ND) and the big-wheel omni antenna. So far, just 1 spot of me by G4TRA (185km).

UPDATE 1858z: 2 stations spotted here on RX. 5 stations have spotted my 2.5W QRP with the furthermost GI6ATZ (479km).

UPDATE 2007z: So far this evening I have been spotted by 6 stations as shown on the map. 2 QSOs this evening.

Old QTH

This aerial photo shows my old QTH. We moved from here about 300m. That was 7.5 years ago. My son lives in this house now. 

We now live next door to the windmill in probably the highest spot in the village.

SETI - NOT amateur radio

As far as I know, we have been searching the universe for almost 50 years via SETI (search for intelligent life) without success. Much of the decoding is done by volunteers using spare processing power on their PCs.

Based on the estimates of planets, I find this odd. As time goes by the means of looking have improved. By now, I would have expected to get some indications.

Maybe, we are looking in the wrong way? Maybe intelligent life self destructs? Maybe we really are alone? Maybe our whole understanding of the universe is wrong?

If ever we did find intelligent life elsewhere, it could have profound implications for humans.

See https://seti.org/

The FETer transceiver

Thinking of ultra-simple rigs, perhaps consider my FETer. I was surprised how well this worked.

See https://sites.google.com/site/g3xbmqrp3/hf/feter-80m-qrpp-cw-transceiver



Pixies and Micro-80s

One of the fun parts of our hobby is seeing how simple gear can be made that is capable of contacts of several hundred miles or more. 

Examples are the Pixie and Micro-80 designs. Pixies can be bought as kits from China for a few pounds or euros. In the past, I have made versions for 80m and 40m, including homebrew and kits.

With these circuits, the main limitation is the RX. These are compromises using the PA device as the RX mixer. Often the sensitivity is a bit lacking and AM breakthrough can be a problem. The front end selectivity is barn-door and the audio filtering mainly one's ear! Nonetheless, many miles can be spanned. In terms of "bang per buck" they take some beating. 

The challenge is to find the best overall circuit which has a decent TX and RX.

See https://sites.google.com/site/g3xbmqrp3/hf/pixie

Old photo - NOT amateur radio

When my mother's house was being cleared some years ago, we came across this old photo which we had never seen before. 

It was on a metal plate and is hand tinted. It probably dates from the 1800s and is possibly of my great great grandmother.

15m FT8 QRP (Tuesday)

It is now 0835z.  About 15 minutes ago I turned on my 15m FT8 QRP gear using 2.5W and the tiny indoor loop antenna on the shack windowsill.   Already I have spotted 8 stations on RX and I have been spotted by 3 on TX.

UPDATE 1835z:  Spotted by 11 stations on TX with the furthermost being EA8AXT (2996km).  265 stations have been spotted on RX with the furthermost YB2DX (12050km).  I continue to be amazed just how well this loop does considering how small and thin the wire is!

Spring coming - NOT amateur radio

All the seasons have their own beauty, but this winter has felt very long. At last there are signs of spring coming. 

The daffodils in the photo are under a tree in our close.  In a few days some will be in flower. Robins are on high branches singing out to mark their territories. The first daisy has been seen.

Spring is coming! With it, new hope and new life. In a few weeks winter will be gone.

Sunspots - Tuesday February 16th 2021

 Solar flux is 70 and the SSN 0. A=5 and K=4.

15 Feb 2021

8m beacon

At some point we will be allocated some frequencies at 40MHz.  In the coming Es seasons I can see many more applying for limited access to the band. These may be spot frequencies with limited power. Small first steps.

There is a beacon which may be worth checking in the Es season S50ZMS.  This is ideally placed for Es to EI and the UK.

472kHz tonight

Hopefully, my transverter works. I shall try later.

Whatever happens, I intend to be on 472kHz (630m) this evening. If the transverter works I shall go on TX. Otherwise RX only. 

In both cases, I shall be using the earth-electrode "antenna" in the ground, that gave good results on 160m FT8.

UPDATE 2044z:  I tried my transverter again and still no sign of any 472kHz output, so I decided to go on 472kHz WSPR RX only. Just LA8AV (1012km) spotted so far. If I was fitter I might be able to fault find. With my health as it is, I think this is beyond me sadly.

UPDATE 2130z:  6 unique stations spotted on 472kHz WSPR RX with the earth-electrode "antenna" in the ground. Furthermost is SM6NOC (1056km).

Oil prices up - NOT amateur radio

Before too long we will all be driving cars that are powered by non-polluting energy. We must also ensure that these energy types are also not produced from polluting sources and are sustainable. 

In the end there needs to be a breakthrough in battery technology and energy storage so that fuels like electricity produced by solar and wind can be stored.

For now, oil prices are a bellweather of the economy. Oil prices have doubled in the last few months and fuel at the pumps has gone up in price. I guess this suggests more optimism for the year ahead.

Covid-19 vaccines - NOT amateur radio

 At the moment, the UK is doing quite well on the vaccination of vulnerable people. I think we are 3rd in the world. Much of what we have done in the last year was poor and this is one area where we have done well.

As long as the rates of virus circulating in the world are high, there is a chance of importing a variant that spreads easily, is more deadly and evades vaccines. There is an adage "until the world is vaccinated we are all at risk".

I hope all the world is vaccinated soon.

15m FT8 QRP (Monday)

In a few moments I shall be turning on my 15m FT8 QRP using 2.5W and the tiny indoor loop antenna. 

UPDATE 1112z:  15m FT8 gear now on. 13 stations already spotted on 15m FT8 RX and spotted by SV2BRA (2154km) on QRP 15m FT8 TX.

UPDATE 1152z: 30 stations spotted on 15m FT8 RX and 2 spots of my 2.5W to the indoor loop on TX with the furthermost RZ4HO (3291km).

UPDATE 1449z: 73 stations spotted so far today on 15m FT8. 

Stations spotted
on 15m FT8 today
UPDATE 1803z
: 95 stations spotted today on 15m FT8 RX with the tiny indoor loop. 

Remarkable - the earth-electrode "antenna" in the ground on 160m FT8 RX

As reported last evening, 31 stations across Europe spotted my 2.5W FT8 to the earth-electrode "antenna" in the ground on TX.


Overnight I left it connected on 160m FT8 RX. In all, 328 stations were spotted including very many in N. America as shown on the map. 

UPDATE 1024z: Apart from VE3PJ (5492km) at breakfast time (0722z), all spots now are UK on 160m FT8 RX.

1908 harsh winter - NOT amateur radio


In 1961, my wife's grandmother wrote a letter to the Sheffield Star newspaper about the harsh winter of 1908 in the UK. We don't know how lucky we are and how hard life was. 

Sunspots - Monday February 15th 2021

 Solar flux is 71 and the SSN 0. A=4 and K=0.

14 Feb 2021

160m FT8 QRP (Sunday)

As an experiment, I am trying my earth-electrode "antenna" in the ground on 160m FT8 using 2.5W. Immediately, stations across Europe were copied on RX. Already spotted strongly in Oxford on 160m FT8 QRP TX. Furthermost on RX is R9GM (3499km) in Perm.

Stations spotted on 160m FT8
so far with the earth-electrode
"antenna" in the ground by 1830z
UPDATE 1830z: Already 102 stations spotted on RX. 1 QSO with a station in Germany and 12 stations have spotted my QRP TX in 4 countries.  My earth-electrode "antenna" in the ground obviously still works effectively. I must try it on 472kHz (630m) probably tomorrow evening, assuming the transverter works!

UPDATE 2225z: So far, 263 stations spotted on RX and 31 stations have spotted me on TX with the furthermost being OE9GHV (869km). Not bad with antenna you cannot even see with just 2.5W from the FT817ND!

The 31 stations spotting my
2.5W to the earth-electrode
"antenna" on TX on
160m FT8 this evening
UPDATE 2227z:
For the night I will leave just the RX on and turn off the TX. TX now off.

UAE Mars orbiter - NOT amateur radio

Mars will one day be explored by humans. For now, we have oribiting satellites and robots on the surface. The recent UAE satellite has been put in an orbit around the red planet.

See https://www.bbc.co.uk/news/science-environment-56060890

2m FT8 QRP (Sunday)

Once again I am on 2m FT8 QRP with 2.5W and the big-wheel omni antenna.  So far, spotted on TX by 8 stations with the furthermost GI6ATZ (479km) and one station spotted so far on RX. It is now 1052z. 

If I come on randomly, the chances are high that I will be spotted in EI or GI. This is definitely some sort of scatter, although the randomness makes me think aircraft scatter is unlikely.

UPDATE 1306z: Several QSOs already on 2m FT8.

UPDATE 1418z: 19 spots of my QRP so far today on 2m FT8. 

The USA - NOT amateur radio

Ex-president Trump has been cleared of impeachment. This is not too surprising as the senate would have needed a 2/3rds majority.

What I sincerely hope is that the USA can move on peacefully. Judging by the votes, he clearly has a large following in the USA, although I very much doubt most of those would have wanted the violence that erupted.

As a beacon of democracy, the violence that erupted some weeks ago was ugly and self-destructive. Now is a time to heal.

Earth-electrode "antenna" replaced

Yesterday, I replaced the wire that I used successfully on 472kHz WSPR TX with a very low ERP. 

It was also used successfully on 160m and 80m.

As yet, it has still to be tested. 

UPDATE 0940z:  Tested on 160m and 80m.  Still high VSWR. Totally puzzled.

UPDATE 1538z: I cleaned the contacts at the far end and the VSWR remained high on 80m. With the auto ATU it matches on 160m. I have not tried 630m, which needs the transverter. My conclusion is that over the years tree roots have grown and effectively shorted out across the "loop" in the ground rendering this "antenna" no longer useful. I may try 160m WSPR or FT8 tonight, but may remove it tomorrow.

Me 1968 - NOT amateur radio

When I was a teenager I still had hair. This was a photo of me back in 1968. Some changes. 😉

These days I am bald and quite a bit heavier! 

Sunspots - Sunday February 14th 2021

 Solar flux is 71 and the SSN 0. A=13 and K=2.

13 Feb 2021

Hare Park Chippenham - NOT amateur radio

 

Last week at Hare Park Chippenham. Notice the cow.

CDARC (Cambridge) talk

Last evening, the Cambridge radio club had another Zoom talk, this time on the monitoring station at Baldock. 

This time, we also had a viewer in Russia! On previous times we have been watched in Canada and Northern Ireland. In all, 29 people attended.

Zoom has exceeded my expectations. Attendance is at least as good as a face-to-face meetings. At least with Zoom, the whole world can watch!

2m FT8 QRP (Saturday)

 At 0945z, when we went for a walk, I went on 2m FT8 RX. Since getting back, I have been on TX too with 2.5W and the big-wheel omni antenna.

It is now 1145z and I have been copied on TX by 7 stations in 2 countries with the furthermost being GI6ATZ (479km). On RX, 20 stations spotted in 4 countries.

South Africa - NOT amateur radio


Doing a walk around the village in the biting wind it is hard to think of the sunny weather in South Africa some years ago. 

This was a very good holiday with such a variety of scenery. In places it was like Scotland and others the Mediterranean. In other places scrub. 

The photo shows False Bay near Cape Town, which is a fine city. 

Not quite sure what we were expecting. We saw "the big five" wild animals, but the sheer variety of scenery was such a surprise. It really is "a world in one country". If you get a chance to go there in the future do go as you are very unlikely to be disappointed.

It is not a place I would wish to live in, but for a holiday it was wonderful. Certainly one of the most beautiful places in the world.

Nanowaves

As you will have seen, after a very long break, I took my first tentative steps back into optical communications yesterday. 

Before my stroke, I enjoyed going out in the field to see how far I could cover, especially over the horizon using QRSS (very slow CW) with PC decoders. 

Much greater distances would have been possible, then my health got in the way. 😕 

All the gear was home made. This was one of the attractions: all the gear was simple, including the test gear. 

This is a field of experimentation open to everyone. You may find some ideas on my main website.

See https://sites.google.com/site/g3xbmqrp3/optical

Sunspots - Saturday February 13th 2021

Solar flux is 72 and the SSN 0 still. A=5 and K=2. 

12 Feb 2021

2m FT8 QRP (Friday)

At about 1845z I QSYed to 2m FT8 QRP using 2.5W and the big-wheel omni antenna. So far, my 2m FT8  QRP has been spotted by 8 stations with the furthermost being GI6ATZ (479km). It is now 1904z.

UPDATE 2120z:  13 stations have spotted my QRP TX this evening. Now QRP.

2021 481THz tests

It is about 7 years since I last tried anything on 481THz (red light). 

So, today I dug out my optical beacon TX and RX and tried some tests across the house. Although I could find the RX, my TX beacon took some finding! This is mains powered. I eventually found it in a cupboard and did some tests. 

Tonight after dark, I shall try bouncing the signal off the windmill.

The last test I tried was in early 2014, but I was too wobbly.

Small steps.

UPDATE 2200z:  I tried "windmill bounce" and "tree bounce" on CW at 10 wpm but it was too easy! Signals were very strong. One thing is clear: I am much more wobbly than I was 7-8 years ago. I'd like to try much greater obstructed paths with QRSS, but wonder if I am up to it these days.

15m FT8 QRP (Friday)

This morning I am again on 15m FT8 with the tiny indoor loop antenna and 2.5W. So far lots of stations spotted on RX and EA8BFK (2882km) has spotted me on TX. 

UPDATE 1400z: 63 stations spotted on RX and 5 stations have spotted my 2.5W QRP  on TX.

Spots of me on 15m FT8
TX with 2.5W and the
 indoor tiny loop at 1535z
UPDATE 1555z: Already had several spots of my QRP from the USA, with 9 spots of me on TX in all.  Amazing. On 15m FT8 RX, 113 spots so far.

126 years ago - NOT amateur radio


This photo shows where I come from in South Devon 126 years ago. What was rocks then is now sand. If it can come this fast (why?) I guess it can go as fast. 

Historic 481THz tests (2012-13)

One of my Facebook memories today was of my optical tests many years ago before my stroke.