9 Mar 2023

Rallies this weekends

The following rallies have been notified to me. If travelling far, it is always worth checking the information is correct before setting out.

  • Saturday March 11th - South Kesteven ARS Junk Sale, Gantham, NG31 7AU. Comtact s.mason@skars.co.uk .
  • Sunday March 12th - British Vintage Wireless Society Meet, Biggleswade, SG18 8JH. Contact jesser3@hotmail.com .
  • Sunday March 12th - Dover ARC HAMZ, Ashford, Kent, TN24 9QX. Contact club@darc.online .

Fancy a job? - NOT amateur radio


It is now nearly 15 years that I have been retired. Local companies are still looking for good RF engineers. At my age and with my poor voice, I think I shall just stick to amateur radio and the odd article writing!

481 THz optical experiments




It is many years since I used my optical gear. As mentioned previously, I want to check it all works, download Spectran 2 and do some local tests initially. Our local church is about 300m away, so perhaps I can do some QRSS tests bouncing off this? 


It the local tests work, I would like to do some over the horizon tests with G4HJW who is about 10km away. Sadly, there is a lot of clutter locally, so perhaps I would have a better chance with Bernie using cloudbounce, rather than clear air scattering? He might have to point to higher in the sky. With passing clouds, I might well copy him.

Being far more wobbly these days, this will be far harder for me now.

All my 100mm gear is still in the shack, but it all needs putting together and testing.

Spring? - NOT amateur radio


With snow on the ground it is hard to think of spring! We had snow overnight, which stopped this morning. My wife took these photos earlier this week and made the collage. A few more weeks?

Birthday boy - NOT amateur radio

 


Today is our elder son's birthday. We went out with him for lunch yesterday in Cambridge. 

Faulty PC repaired - NOT amateur radio

Yesterday I had an email to say my PC had been repaired and checked and Asus was awaiting collection by the courier. 

This was under warranty and was done very fast. I expect they just swapped the motherboard. They have contacted me at every stage. I hope it is OK now. 

When it arrives back I must check it and see if FT8 works with the FT-710.

70cm FT8 activity contest


 Yesterday evening was the 70cm FT8 activity contest (UKAC). I can only use 2.5W to my 2m big-wheel omni antenna, yet stations as far away as Germany were copied  (see map) and 2 locals worked. I was not on very long as we have a regular 2m FM net.

Sunspots - Thursday March 9th 2023

Solar flux is 182 and the SSN 146. A=8 and K=3. 

8 Mar 2023

Windows PC

Currently I have 2 Windows PCs. Both run Windows 10 and were made by Asus. One I have had for years and is the main shack PC. The other failed under warranty and is currently being fixed.

Despite trying everything, I have still not got the FT-710 to work on FT8. I have downloaded the drivers, checked the settings are correct many, many times. This includes watching several YouTube videos. Until the other PC returns from repair, I cannot check the FT-710 with the other Windows PC.

Looking in Device Manager, all is there, but I cannot get CAT to work and there is no TX audio.

Of course, the FT-710 could be faulty, but I suspect the shack PC.


8m WSPR (Wednesday)

For a change, I am on 8m WSPR today. As the TX is on for longer periods, I am TXing at 1W instead for 20% if the time.

Our Close - NOT amateur radio


Although it is cold again, there are signs of spring in our Close. 

Sunspots - Wednesday March 8th 2023

Solar flux is 180 and the SSN 191. A=11 and K=2. 

7 Mar 2023

FT-710 and FT8

This afternoon, I shall have a go at getting FT8 working on the Yaesu FT-710AESS.  It requires some drivers downloading first. There are several YouTube videos which should help.

Anglesey Abbey earlier - NOT amateur radio


 This was the mill and leat at Anglesey Abbey this morning.

Good looking fellow? - NOT amateur radio


This photo shows me when I was young. Not much change on the top!! I have been bald since my early 20s. It did not last long! 

E-field probes (EFP)


These are very small RX antennas that can be very effective at VLF, LF and MF.  As you move HF, they get less effective. The main issue is that at lower frequencies external noise dominates.  

There are several designs around. Important factors are dynamic range (they can be hit with some very strong signals) and positioning away from buildings to minimise noise pick-up.

See https://sites.google.com/view/g3xbm4/home/antennas/e-field-probe-efp .

80m FETer transceiver

One of the challenges in amateur radio is how simple can you make a rig that really communicates? Some years ago I designed and built this unit for 80m CW that appeared in GQRP SPRAT. It is one of the simplest transceivers you can make. It really works!

See https://sites.google.com/view/g3xbm4/home/hf-mf-and-lf/homebrew/80m-feter-transceiver .



Sunspots - Tuesday March 7th 2023

 Solar flux is 188 and the SSN 173. A=15 and K=3.

6 Mar 2023

446 radios - NOT amateur radio

It amazes me that these are so inexpensive!  I have seen them as low as £22.99 for 2 on Amazon!! There are probably units that are even less expensive.

How do they makes profits?

See https://www.amazon.co.uk/dp/B0967M841N

Too small - NOT amateur radio

For many years I was a Christian.  These days I am perhaps better described as agnostic.  I am not sure what I believe.

Christianity seems too small for me in a world of many faiths. Then you have the probable existence of trillions of planets in the universe. There are probably billions of planets in our galaxy alone and billions of galaxies!!

My view currently is that all religions are hints towards the truth. Christianity seems too parochial these days. I cannot believe that all the religions in the world other than Christianity are wrong.

My own view is that we are all capable of evil given the right triggers. We would rather this was not true, but history proves us wrong. Just shortly before I was born, millions were put to death in gas chambers by the people of a civilised country. I can imagine us being just as evil had circumstances been different.

Throughout history, religions of all sorts have been the trigger for evil against fellow men.

In many ways I envy people with strong religious beliefs, but to me, this is not enough. 

I am a strong believer of the existence of good and evil. There is clearly evil in the world, but often (always?) this has its roots in evil done to the perpetrator. It is my firm belief that there is far more good in the world than evil. Sadly, good deeds are rarely newsworthy.

All we can hope is we leave this world having worked for some good within it.