About Jean-Paul Suijs - PA9X

Jean-Paul. Radio amateur, VERON member. HF, radiowaves, propagation, antennas. Amateur astronomer. Principal Marketeer. Rotterdam Port area, JO21ev.

Why WiFi repeaters do not guarantee fast internet

A poor WiFi signal

If you have mobile devices like your smartphone, or you have a laptop, you probably run a wireless network. Concrete, bricks and metal will limit the range of your WiFi signal. Installing one or more WiFi repeaters guarantees a strong signal, but does not guarantee high speed. Here is why. Continue reading Why WiFi repeaters do not guarantee fast internet

LED lights, a sustainable radio disaster

LED light

LED lighting is probably the most sustainable way of bringing light into your life. Power consumed by LED is only a fraction of that consumed by a conventional light bulb, with the same amount of light. And what about the lifespan. A quality LED can last a lifetime. Blue-ish white Continue reading LED lights, a sustainable radio disaster

The liquid HF vertical for 10m to 40m

I love HF and my QTH is not that good for harbouring a lot of antennas so I can work each band. I do have a trap HF vertical but it is a pain in the … Corrosion makes this antenna untunable to resonate.The ideal antenna would be a vertical Continue reading The liquid HF vertical for 10m to 40m

Better DX hunting with a 14 US Dollar SDR receiver

I am a big fan of the 10m band.  An extra receiver would be nice to listen on 10m, so I can use the TS-480HX to listen across the HF bands. But with a second receiver, you probably need an extra power supply and extra space in your shack. A Continue reading Better DX hunting with a 14 US Dollar SDR receiver