When it comes to lithium batteries, you basically have two types. LiPoly batteries usually come in pouches wrapped in heat shrink, whereas lithium ion cells are best represented by the ubiquitous c…
The Early Bird Repairs a Slug
When faced with a problematic Bird slug, [Chuck Martin] didn’t give up. He pecked away at the slug and brought us all along for the ride. If that sentence didn’t make sense to you, read…
Radio Tuning The Quicksilver Way
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…
FM Snake Feeds Off Radio Waves
[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 …
Military Satellite Goes Civilian
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…
A Fully Featured, Fifty Dollar QRP Radio
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…
Antenna Basics by Whiteboard
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…
Radiomarkt Haje 2017
Het was weer gezellig op de jaarlijkse radiomarkt bij Haje, 3 september jongstleden.
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RWM – Wikipedia
Bron: RWM – Wikipedia
19 RTL-SDR Dongles Reviewed
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…
