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Holiday over - NOT amateur radio

We returned from our week in Malta yesterday to the cold, rain and green countryside. Everyone we met was kind and helpful. It was hot and sunny almost all the time we were there. The hotel and food were excellent.

However, Malta is very built up (the most dense in Europe) and what little countryside there was was rocky and barren.

If you go on holiday for sun, swimming pools and food it might suit you. Overall, I am glad we went, but I doubt we will return.

472kHz transverter


Β It will soon be time to go back to 472kHz. For some reason a myth has grown up that you need very big antennas and extensive ground systems. Also that high power helps! Nothing could be further from the truth.

I can only speak from personal experience. My transverter produces about 10W into 50 ohms and gave about 10mW ERP into my earth-electrode antenna in the ground. My earths are about 10m apart. It has been received on WSPR as far away as Finland and I got spotted in Norway most nights. It was in QST about 10 years ago. It is also described on my website.


VLF converter

Β Many people want to have a dabble at VLF reception and want to know what is down there but most receivers don’t go that low. Many years ago I designed and built this up converter so I could take a listen. Receiving commercial stations such as time signals and MSK signals is easy . Reception of AMATEUR VLF signals is highly unlikely to work as this usually needs very narrow bandwidth and precise frequency setting. Details of this upconverter and how to improve it are on my website.



Over the horizon optical tests


Β It’s many years since I last did these tests and I remember being amazed that on a cloudless night I could clearly receive my 481THz beacon way over the horizon without any signal visible. Had my stroke not got in the way, I am sure much much further would have been possible even with my simple QRP system. The receiver I used is attached. It was also in RadCom. It is also on my main webpages.

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