HF In Small Spaces
Generally, the biggest problem a new ham radio operator will come across when starting out on the high frequency (HF) bands is finding physical space for the antennas. For a …read more Continue reading HF In Small Spaces
Tag Archives: Radio
FLOSS Weekly Episode 768: Open Source Radio
This week Jonathan Bennett and Doc Searls talk with Tony Zeoli about Netmix and the Radio Station WordPress plugin. The story starts with the Netmix startup, one of the first …read more Continue reading FLOSS Weekly Episode 768: Open Source Radio
Simulating a Time-Keeping Radio Signal
As far as timekeeping goes, there’s nothing more accurate and precise than an atomic clock. Unfortunately, we can’t all have blocks of cesium in our basements, so various agencies around …read more Continue reading Simulating a Time-Keeping Radio Signal
Pico-Sized Ham Radio
There are plenty of hobbies around with huge price tags, and ham radio can certainly be one of them. Experienced hams might have radios that cost thousands of dollars, with …read more Continue reading Pico-Sized Ham Radio
Mystery of bizarre radio circles in space may finally have been solved
It’s not often that space throws something entirely new at you, but in 2019 that’s exactly what happened when astronomers discovered a completely unknown phenomenon they called odd radio circles (ORCs). Now, more data may have revealed just how these r… Continue reading Mystery of bizarre radio circles in space may finally have been solved
Building a GPS Receiver from the Ground Up
One of the more interesting facets of GPS is that, at least from the receiver’s point-of-view, it’s a fairly passive system. All of the information beamed down from the satellites …read more Continue reading Building a GPS Receiver from the Ground Up
Bluetooth As Proxy for Occupancy
During [Matt]’s first year of college, he found in a roundabout way that he could avoid crowds in the dining hall by accessing publicly available occupancy data that the dining …read more Continue reading Bluetooth As Proxy for Occupancy
The Trans-Harmonium is a Strange Kind of Radio-Musical Instrument
Pianos use little hammers striking taut strings to make tones. The Mellotron used lots of individual tape mechanisms. Meanwhile, the Trans-Harmonium from [Emily Francisco] uses an altogether more curious method …read more Continue reading The Trans-Harmonium is a Strange Kind of Radio-Musical Instrument
A Ham Radio Answering Machine
For those who grew up with a cell phone in their hand, it might be difficult to imagine a time where the phone wasn’t fully integrated with voicemail. It sounds …read more Continue reading A Ham Radio Answering Machine
pico-WSPR-tx Does it in Software
What do you need to make a radio transmitter? There are builds that work with just a couple of transistors. But how about a GPS-disciplined small signal beacon? You can …read more Continue reading pico-WSPR-tx Does it in Software