22 Oct 2020

Online BATV Convention (amateur TV)

The BATC convention this Saturday October 24th will be online and on Zoom. What follows is as I received it and may be hard to read on some screens.

Saturday 24 OCTOBER : NOW ONE DAY AND ONLINE ONLY

BATC CONVENTION FOR AMATEUR TV 2020 (CAT 20). BATC CAT 20 will go ahead as an online and on-air event. The interactive parts of the meeting will use Zoom, and all lectures will be streamed on the BATC Streamer with the opportunity for questions. More details at https://forum.batc.org.uk/viewforum.php?f=128.

A list of rallies can be found at http://rsgb.org/main/news/rallies/

10m FT8 QRP again

Once again I am on 10m FT8 with the FT817ND and the poorer indoor loop. It is currently 0910z and I am RX only. No spots yet.

UPDATE 1012z:   Just spots of 9A6R (1542km) and G0PQO (50km).

UPDATE 1050z:   Now on TX at 2.5W. No spots of me yet. 4 stations spotted on RX.

UPDATE 1425z: 1 person spotted me on 10m QRP FT8 TX and I have spotted 11 so far, all in Europe. Now gone back to RX only.

UPDATE 2050z:  10 S.American stations spotted. QRT. 

Cactus Day - NOT amateur radio

For the last few years we have celebrated Cactus Day invented by one of our grandchildren. The photo shows one of our grandchildren working on the Cactus Day cake. 

Sunspots - Thursday October 22nd 2020

Solar flux is 74 and the SSN 11. A=10 and K=3.

21 Oct 2020

Great grandmother - NOT amateur radio


This is a photo of my great grandmother. It must date from the early 1900s. 

Baojie mobile photos inside

A few days ago I was told about a low cost dual band mobile by Steve G1KQH. This Russian site has some internal photos.

See https://www.qrz.ru/catalog/reviews/bj-218_971


SAQ (17.2kHz CW) reminder

On October 24th there will be a transmission from the historic SAQ in Sweden. Quite a few test their VLF systems with this. I have a QSL card from them from a transmission several years ago. It is on my shack wall.

See https://alexander.n.se/category/news/?lang=en

10m FT8 RX

At the moment I am on the poorer indoor loop, which is the one used on 20m, 17m and 15m. It sits on the shack windowsill. I reckon it is about 6dB inferior to the dedicated 10m loop made with copper thin bore pipe. Although I think my chances are low, I have left the kit running on 10m FT8 RX "just in case". It would be good to spot something!

UPDATE 0840z:  Not surprisingly, nothing spotted.

UPDATE 0855z:  Amazingly, EI9JF (488km) spotted.

UPDATE 0821z:  Now G0PQO (50km) and G0FWX (160km) also spotted. No real DX yet, but I am pleasantly surprised to spot these stations already on 10m FT8.

UPDATE 1358z: 18 stations have spotted me today on 10m FT8 RX. 

UPDATE 2035z: 5 people spotted my 2.5W 10m FT8 to the poorer indoor loop antenna and I have spotted stations in the USA and South America as well as all over Europe. 

Earth-electrode "antennas" in the ground

Quite often I hear people tell me they have no space for LF or MF antennas. Rubbish!  

For many years I have used my earth electrode "antenna" on VLF, LF and MF. It won't be as good as a big antenna, but it works remarkably well.  Even my wife does not know it is there!  Neither do the neighbours. 

On 472kHz WSPR I get copied in Norway most nights with less than 10mW ERP with mine.

See https://sites.google.com/site/g3xbmqrp3/antennas/earth-electrode-antennas

Sunspots - Wednesday October 21st 2020

 Solar flux is 75 and the SSN 11. A=4 and K=2.

Overnight on 630m WSPR RX

Overnight, I left my 630m WSPR kit running. Many more spots from the stations copied in the evening although no-one new. My conclusion is the earth-electrode "antenna" in the ground appears fine. Next job is mending that PA in the transverter. Stations logged in Norway, Poland, Italy and Spain plus many other European nations.

20 Oct 2020

Shoe boxes - NOT amateur radio

Every year my wife fills a shoe box with gifts for disadvantaged children in Eastern Europe. The photo shows a friend knitting hats and scarves to go in the boxes.

630m WSPR RX

There may be 2 issues with my 472kHz (630m) QRPP setup. 

As mentioned in the last post, I suspect the IRF510 PA device is damaged.  My transverter gives 12W into a 50 ohm load, but the measured ERP is less than 10mW. Despite this, I was able to get to Norway most nights last winter.

There may also be a break in my earth-electrode "antenna". 

As a first step, I am on 472kHz WSPR RX overnight. If this works, it probably means the earth-electrode "antenna" is intact. If this is the case, I may be able get on TX again just by mending the PA device. If this fails, I shall replace both the IRF510 and the wire in the garden.

UPDATE 1830z:  With F and DL already spotted, initial results are encouraging.

UPDATE 2130z:   I think the earth-electrode "antenna" in the ground is fine, judging by results this evening. I shall leave the RX on overnight, although I have spotted far more than I expected.

Mending 472kHz transverter

Late last winter I think I managed to destroy the PA MOSFET in my 472kHz transverter. I must have had a very poor match for a very long time! Mending this is a job for the weeks ahead. In the past this has been mainly used for WSPR. 

Son and children - NOT amateur radio

The recent photo shows one of our sons with his children. 

Sunspots -Tuesday October 20th 2020

 Solar flux is 75 and the SSN 12.  A=6 and K=2.

Tuesday on 2m FT8 (2.5W and big-wheel omni antenna)

It is now 0750z.  About 10 minutes ago, the 2m FT8 gear was turned on. Already 4 stations have spotted me today.

19 Oct 2020

Primroses - NOT amateur radio


About now we plant primroses to give us winter colour in the garden. These were bought from a nursery in the village. They look healthy. 

2m FT8 QRP - Monday

At 0822z, my 2m FT8 was turned on. Once again I am using 2.5W to the big-wheel omni antenna. 1 station in Germany spotted on RX and at 0950z, my signal had been spotted by 10 stations in 3 countries with the furthermost being G7RAU (461km) in Cornwall. No QSOs yet.

UPDATE 1250z:   12 stations have spotted me today.

Stations spotting
me to 1550z

UPDATE 1550z:   18 stations have spotted me today so far.

UPDATE 2145z: QRT. In all 25 stations spotted my 2m FT8 QRP. Furtermost was GI6ATZ. 

Lesotho - NOT amateur radio


Ten years ago we were in South Africa and went to Lesotho. It was an eye opener. 

Sunspots - Monday October 19th 2020.

 Solar flux is 76 and the SSN 28. A=3 and K=1

18 Oct 2020

Dad's seat - NOT amateur radio

My dad died in 1987. In his last years he ran a job creation scheme for the National Trust and in his memory they erected 2 seats on Bolberry Down in South Devon. The photo shows my brother on one today before lunch. 

Front garden in autumn - NOT amateur radio

It seems the long summer days and warmth are over as we move into autumn. In the front garden, one of our rowan trees has lost lots of leaves and in the back garden the trees will soon be bare again.

Things seem to have suddenly changed.

2m FT8 Sunday (2.5W and the big-wheel omni)

Stations spotting my 2.5W 2m FT8 in first 20 minutes

Since about 0850z, I have been on 2m FT8.   Already spotted by a 5 stations of which one gave me an incredible +4dB S/N. This was G8TIC (170km). I suspect this was aircraft reflection. Best DX spot was by DF0MU (475km). The photo shows the stations spotting me in the first 20 minutes.

UPDATE 1218z:  16 spots of my 2m QRP FT8 so far today. It never fails.

Stations spotting my 2.5W to the big-wheel
on 2m FT8 today so far to 1440z

UPDATE 1440z:
   23 stations in 4 countries have spotted me so far today and I have spotted 19 stations and I have had 1 QSO. Who needs high power, towers and big beams? Certainly not me! Just an FT817ND and a simple big-wheel seem enough.

UPDATE 1945z:   2 QSOs, 39 stations spotted on RX and 30 stations in 5 countries have spotted me today on 2m FT8.
Stations spotted on 2m FT8 RX today

Senhaix portables

RSGB RadCom had an article on Senhaix dual band portables recently. I think these are Chinese. If the article said this I missed it. 

At the price stated, these look quite good value. They are not the cheapest, but I hope the quality control is better. My main worry with Chinese manufactured amateur products is still quality control and guarantees. 

As long as the products work, fine. What happens if they fail? My experience with Chinese manufacturers is mixed. Some seem able to answer questions, whereas others cannot understand! 

I am sure that the Chinese products will get better and that the Japanese manufacturers will get a real fright. This could happen within the next couple of years. 

It would not surprise me if some Japanese companies survive by designing in Japan, but making in China or some other low cost country. It is possible that China goes like Japan did years ago and labour costs make it no longer a low cost country.

The manuals often give you a clue: Chinese English can be pathetic! Ask yourself, if the manual is that poor how do you think they will fix your radio? Would they be interested? Some would say they are so cheap just buy a few and throw away any that fail. I much prefer not to do this.

Sunspots - Sunday October 18th 2020

Solar flux is 73 and the SSN 15. A=5 and K=1. 

Last evening on 2m FT8

Last evening I decided to go on 2m FT8. Apart from the first few minutes in which my 2.5W was spotted by 5 stations, I was on RX only spotting 13 stations in 2 countries. 

17 Oct 2020

Grandson success - NOT amateur radio

He claims he doesn't really like running, but he still wins a medal for winning his cross-country run. He must take after his granddad - not!  It is many years since I have been able to run!

Last of the dahlias? - NOT amateur radio

On our visit to nearby Anglesey Abbey this week we saw these dahlias. I expect they will soon die. 

They have been in bloom for several months.

Tenner 10m QRP Transceiver

Before the last sunspot maximum I designed and made the Tenner 500mW 10m CW QRP transceiver. Especially in Es openings this is capable of plenty of contacts. It has crossed the Atlantic Ocean several times.

See https://sites.google.com/site/g3xbmqrp3/hf/10m_tenner

New Zealand elections - NOT amateur radio

New Zealand has led the way in fighting Covid-19. Essentially it has been largely free of the pandemic that has crippled much if the world. 

They have just had a general election and Jacinda Ardern's (the NZ PM) Labour Party is in line for a massive majority. We may differ over political policies, but we have to agree she did a good job in the fight against Covid-19.

See https://www.bbc.co.uk/news/world-asia-54519628

20m FT8 (2.5W and the indoor loop)

A few moments ago I turned on 20m FT8 QRP using 2.5W to the tiny indoor loop. It is 0840z. 

Yet again, I had a problem with decoding signals and the waterfall being smeary. After turning WSJT-X and the SignaLink interface off and on, it is now decoding. I am running Windows 10.

No spots of me yet and 4 stations spotted so far today.

UPDATE 1258z:  So far today, 3 stations have spotted my QRP 20m FT8 signal. On RX 84 stations have been spotted in 3 continents.

UPDATE 1412z:  5 stations have spotted me so far and I have spotted 108 stations in 4 continents.

UPDATE 1710z:  5 stations have spotted me today on 20m FT8 QRP and I have spotted 157.


RSGB Convention online

Southgate News reports that the RSGB Convention talks are available online.

See http://southgatearc.org/news/2020/october/rsgb-convention-videos-on-youtube.htm#.X4qS7LfTVkw

Rear garden 2015 - NOT amateur radio

 


The photo shows our rear garden in 2015,

Fungi - NOT amateur radio


It must be all the rain we have had, but we saw several patches of fungi on our walk yesterday at Anglesey Abbey. 

OFCOM and spectrum trading

OFCOM is talking about spectrum trading at 2.6GHz. See the OFCOM website for more information. 

Sunspots - Saturday October 17th 2020

Solar flux is 75 and the SSN 14. A=4 and K=1.

16 Oct 2020

20m FT8

For about 30 minutes I have been on 20m FT8 running 2.5W to the indoor loop antenna. 

WSJT-X oddity

Sometimes when I use WSJT-X even on RX the signals on the waterfall appear smeared and I get no decodes. I have selected the default audio device. Most times this is fine and I see many decodes. When I select USB Codec all is fine. The photo shows the effect. 

I use a SignaLink USB interface with the FT817ND as I have done for many years. I am using the latest fully released version on FT8. I was not aware of issues with earlier versions. 

Autumn - NOT amateur radio


Autumn is here and the colours are changing.