PI4ZLB

Modern radios are often digital affairs, in which the frequency is derived from a stable crystal oscillator and varied through a microprocessor controlled frequency synthesiser. It won’t drif…

Bron: Radio Tuning The Quicksilver Way

[Eric Brasseur] built a radio-detecting snake that consists of a LED that lights up when around reasonably strong radio waves. Near an FM radio mast you’ll find a huge amount of waste energy …

Bron: FM Snake Feeds Off Radio Waves

Space may be the final frontier, but that doesn’t mean we all get to explore it. Except, perhaps by radio, as the US Air Force has just demobbed a satellite and handed it over to the public t…

Bron: Military Satellite Goes Civilian

QRP radio operators try to get maximum range out of minimal power. This term comes from the QRP Q-code, which means “reduce power.” For years, people have built some very low-cost radio…

Bron: A Fully Featured, Fifty Dollar QRP Radio

Like a lot of people, [Bruce] likes radio controlled (RC) vehicles. In fact, many people get started in electronics motivated by their interest in RC. Maybe that’s why [Bruce] did a video abo…

Bron: Antenna Basics by Whiteboard

Het was weer gezellig op de jaarlijkse radiomarkt bij Haje, 3 september jongstleden.

Blogger [radioforeveryone] set out to look at 19 different RTL-SDR dongles for use in receiving ADS-B (that’s the system where airplanes determine their position and broadcast it). Not all of…

Bron: 19 RTL-SDR Dongles Reviewed

In Europe, the GRAVES radar station beams a signal on 143.050 MHz almost straight up to detect and track satellites and space junk. That means you will generally not hear any signal from the statio…

Bron: Sorry US; Europeans Listen to Space with GRAVES

If you are an American, you’ll probably now find yourself in one of three camps. People who are going to see the upcoming solar eclipse that will traverse your continent, people who aren̵…

Bron: Crowdsourcing The Study Of An Eclipse’s Effect On Radio Propagation