Radio

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The HackRF Portapack H4

7 Oct 2025 4 minute read 0 comments Investigator515 $0.16

The HackRF one isn’t without its flaws. But when paired with the Portapack system and the Mayhem firmware, it provides a useful, all-in-one system that is a great educational tool that beginners can use to learn about the radio spectrum and various t...

Firmware Fails: Unbricking The HackRF One

27 Sep 2025 5 minute read 0 comments Investigator515 $0.11

Thanks to DFU, the HackRF Portapack is almost unbrickable. One of the best things about the HackRF portapack is the sheer amount of utility that the Mayhem firmware brings to the table. In comparison to the standard unit, which requires power and a c...

Open Source RF: Exploring The ISM Bands With RTL_433

7 Jul 2025 4 minute read 0 comments Investigator515 $0.10

The RTL-SDR dongle can be a cheap entry into the world of radio. We’ve spoken before in previous articles about the utility that you can get by acquiring one of the RTL-SDR dongles. These cheap USB devices are a great introduction to the world of rad...

Mobile Radio: The HackRF One Portapack (1)

24 May 2025 4 minute read 4 comments Investigator515 $0.07

If you’re of the older generation, you probably remember a time when radios were expensive. Like, really REALLY expensive. And, while it’s fair to say that even today we can get our hands on some seriously expensive hardware, it’s also fair to...

Information Overload! Information Overload!

19 May 2025 5 minute read 1 comment SweptOverNiagara $0.21

Do you sometimes feel like your wires are getting crossed because there's just too much information coming in? Well, you're not alone. I watched an interesting video on Youtube the other day titled, 'A shockingly Accurate 1998 Prediction About Today...

LabRats: 6 Essential Tools For Your RF Hacklab

8 May 2025 6 minute read 0 comments Investigator515 $0.18

To experiment with RF, you’ll need a proper workspace and some suitable tools. We strive to provide informative articles, however, it is important for users to ensure their research is both ethical and responsible. Additionally, it is your responsibi...

Radio Hackers: Electromagnetic Eavesdropping & Harmonics

13 Jan 2025 5 minute read 1 comment Investigator515 $0.08

In earlier articles, we covered the concept of the Van EckPhreak, which discussed how electromagnetic radiation (EMR) could be used to exploit private information. One point that we missed in that article though, was how an entire research field woul...

From Signal To Success: Your Guide To RF Connectors

30 Oct 2024 5 minute read 0 comments Investigator515 $0.10

Your how-to guide on identifying compatible connectors for your home lab. When you’re getting started with transmitting and receiving stations, you’ll need an antenna and suitable feedline to get the best out of your system. And while you wouldn’t be...

Stray Emissions: Van Eck Phreaking

13 Aug 2024 6 minute read 1 comment Investigator515 $0.07

This eavesdropping method is straight out of a spy movie. If you aren’t a medium member, you can read with no paywall via substack If you’re of the older persuasion you probably remember a time when the world was a much different place. Videos and ev...

Radio On The Go: Portable SDR

5 Jun 2024 6 minute read 1 comment Investigator515 $0.03

If you aren’t a medium member, you can read with no paywall via substack Home labs are pretty cool. Depending on your interests, we’ll often find an array of test equipment, hardware systems and even remote servers or systems. Having a centralised sp...