K3XEC

🕊️ This post is part of a series called "Pigeon".

🕊️ This post is part of a series called "Pigeon".

🕊️ This post is part of a series called "Pigeon".

🕊️ This post is part of a series called "Pigeon".

🕊️ This post is part of a series called "Pigeon".

🕊️ This post is part of a series called "Pigeon".

🕊️ This post is part of a series called "Pigeon".

🕊️ This post is part of a series called "Pigeon".

🕊️ This post is part of a series called "Pigeon".

🕊️ This post is part of a series called "Pigeon".

🕊️ This post is part of a series called "Pigeon".

🕊️ This post is part of a series called "Pigeon".

Interested in future updates?

Interested in future updates?

Interested in future updates?

After years of thinking about and learning about how radios work, I figured it was high-time to start to more aggressively share the things i’ve been learning.

Some of you may remember that I recently felt a bit underwhelmed by the last pager I reverse engineered – the Retekess TD-158, mostly due to how intuitive their design decions were.

It’s been a while since I played with something new – been stuck in a bit of a rut with radios recently - working on refining and debugging stuff I mostly understand for the time being.

Interested in future updates?

The asterisk VoIP project has a protocol built-in called “AudioSocket”.

Interested in future updates?

Before you go on: I've been warned off implementing this in practice on a few counts; namely, the space tradeoff isn't worth it, and it's unlikely to correct meaningful errors.

AX.25 is a tough protocol to use on UNIX systems.

🐀 This post is part of a series called "PACKRAT".

🐀 This post is part of a series called "PACKRAT".

🐀 This post is part of a series called "PACKRAT".

🐀 This post is part of a series called "PACKRAT".

🐀 This post is part of a series called "PACKRAT".

Hello!

Over the last few years, I’ve often wondered what the true power output of my SDRs are.

Over the course of the last year and a half, I’ve been doing some self-directed learning on how radios work.

The rtl_tcp program will allow a client to remotely receive iq samples from the rtl sdr over a tcp connection.

rfcap is a file format with extremely small ambitions. rfcap files contain a fixed size header, and then a stream of raw IQ data.

This post is all about the E4000 (e4k) RTL-SDR Tuner, commonly found in the Nooelec RTL-SDR.