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Technical Corner

Interesting technical articles

Seeing the good in Solar winds at the bottom of the sun cycle

It is normal that strong ionised particles escape the sun during a solar flare-up. The number of sunspots (bright spots visible on the sun) that indicate the flare-ups vary over a cycle which can be as short as 7 years or as long as 11. More sunspots equate to a consistent re-charging of the Earths Ionosphere and hence better DX conditions around the globe within the Ionosphere.

Monitoring short range propagation

More often than not, in the Amateur radio Hobby, we are looking to see when the space weather is going to help us make distant (DX) contacts. There are however times when long skip distances are not what we want!

Testing the losses of Multi-coupler’s, Splitter & Low Pass Filter

My Stridsberg (USA) Receiver 8 port multi-couplerfailed and being unsure of where to procure the LNA replacement and unable to find information, I replaced the unit with a substantially more affordable 5 port unit from the UK manufacturer Cross Country Wireless.

Packet Radio
Hardware and Software in 2019


Packet in use
Error free message and mail, file and data transfers, keyboard to keyboard (texting), tracking and telemetry (APRS), satellites. Range can also bein creased by the use of digipeating or networking e.g. NETROM


SMC Soldering

Lecture, demonstration and hands on practice on everything you need to know about soldering surface mounted components (SMC)