17 Jul 2021

Clematis - NOT amateur radio

This is growing over our garden fence from a neighbour's garden. I am not complaining! 

St Ives, near Cambridge - NOT amateur radio

Many people in the UK know of St Ives in Cornwall where the G7 recently met. Few are aware of the other St Ives near Cambridge. 

The run from Cambridge to St Ives on the guided bus goes past lakes and is very attractive. Sit back and enjoy the run. Of course, if you are a UK Old Age Pensioner with a bus pass this can be totally free!

St Ives has some great history and is a good place to visit. This photo was posted on 365project earlier today by a friend.

10m FT8

After a brief period on TX with 2.5W QRP  (I worked one F) I am now 10m FT8 RX only.  It is now 0920z and 51 stations received.

All being well, I hope to let Richard G3TFX have my 10m multi-mode Lincoln President II on indefinite loan. This is thanks for all his hard work on my antennas. It is so long since I used this that I forget how to use it!

UPDATE 2029z:  374 stations spotted so far on 10m FT8 RX including North and South America, the Caribbean and St Helena (ZD7) The furthermost was YV1SW (7862km).

New strimmer - NOT amateur radio

 After several years of good service, my strimmer packed up, so I bought a new one. Firstly the supplied written instructions needed a degree or PhD in astrophysics to follow. I gave up and looked on YouTube for an instruction video from the manufacturer. 

I watched many many times. These were better, but not by much. The last stage was adding the steadying handle. What the video failed to explain was that you had to pull something at the same time!

In all, I was not at all impressed. My last strimmer came assembled and just worked.

If it goes wrong, I have no idea how to disassemble it to return under guarantee as most assembly steps assumed you waited for a click. Perhaps you need a PhD in theoretical physics for that!

I assume this too was made in China by slave labour and is designed to fail just after the guarantee expires.

VLF 10 years ago


Ten years ago I was very active on VLF. The photo shows the earth mode signal 6km away with 5W. 

Lockdown painting - NOT amateur radio

One of our friends in Australia has been using the lockdown periods to paint.  She is very talented.  The attached is an example of her work. 

Sunspots - Saturday July 17th 2021

Solar flux is 75 and the SSN 35. A=4 and K=1.

16 Jul 2021

IC-705 firmware upgrade

ICOM has announced that the firmware for the IC-705 has been upgraded to v1.26.

See https://www.icomjapan.com/support/firmware_driver/3343/

Yaesu cashback

The latest MLS "Something for the weekend" video has news of the Yaesu cashback offers. They have some great deals and a free PSU on some models.



10GHz homebrew

Confession time: I have done very little on microwaves.  My excuse is that, in such a diverse hobby, one cannot do everything. 

Instead, I did some work at 481THz optical with results far exceeding expectations. Test gear was easy to make as was all the actual operating kit.

Many have accessed microwaves with very low cost modules obtainable online. With many of these, the microwave engineering is minimal or non-existent. Many have experimented with ATV at 5.6GHz and 10GHz this way. Several have made wideband FM transceivers at 10GHz this way.

See https://sites.google.com/view/g3xbm4/home/vhfuhfmicrowaves/homebrew/10ghz .