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14 Jun 2026 8 minute read 1 comment Investigator515
On January 31, 1954, a man in an overcoat stepped out from a 13th-floor window of his Manhattan apartment. He’d addressed an envelope to his wife, Marion, and left it on a table. At 63 years old, the man who gave the world FM radio died on the street...
27 May 2026 6 minute read 7 comments Investigator515
In this previous article, we took a look at how to use Satdump paired with the RTL-SDR and a modest antenna to collect live weather imagery from space.Shortly after this, however, it was announced that the NOAA Automatic Picture Transmission (APT) sa...
10 May 2026 3 minute read 0 comments Investigator515
Radio can be magical stuff sometimes. While the internet would provide a technical revolution, there’s still something distinctly fun about using wireless signals to communicate and transmit data. The smartphone wrapper takes this out into the world...
6 May 2026 6 minute read 1 comment Investigator515
If you’ve been reading for a while, you already know that we are firm fans of the Raspberry Pi. While the value equation is different to what it was in the past, it’s still a great system for deploying projects quickly and easily. Despite this, with...
8 Apr 2026 6 minute read 1 comment Investigator515
Spaceflight communications have changed dramatically since Apollo. If you’re reading this within a few days of it being published, four astronauts are currently in deep space heading back to the moon for the first time in decades. They are sending t...
22 Feb 2026 4 minute read 0 comments Investigator515
Getting started can be expensive, but it doesn’t have to be. RF-capable hardware can be expensive, particularly if you’re looking to transmit. And, the higher you go in the frequency range, the truer this is, with some microwave-capable systems being...
9 Feb 2026 6 minute read 0 comments Investigator515
The Portapack H2 is a great way to enter the world of radio. Cheap hardware is (mostly) amazing. The TinySA gives us access to spectrum monitoring for less than $200 delivered, and the Nano-VNA gives us capable test equipment that's ridiculously chea...
31 Jan 2026 5 minute read 1 comment Investigator515
This article is sponsored by our partners at PCBWay. Talk to the team to get design support to help bring your next project to life. As we’ve progressed through building the cubesat simulator, we’ve built out the solar and battery boards, printed our...
11 Jan 2026 4 minute read 0 comments Investigator515
2026 is already shaping up to be an exciting year for the publication. 2025 was a great year for the publication. Thanks to new feature writers, new affiliates and the support of Medium as the place to build and grow, we were able to take the publica...
4 Jan 2026 6 minute read 1 comment Investigator515
Get your own TinySA at a discounted price by visiting this link. The drone war has been one of the most rapidly shifting parts of the Russia-Ukraine war, and it’s something that we’ve spent plenty of time writing about in previous articles. It’s not...
