K3XEC

Paul (K3XEC) is an amatur radio operator in the Washington DC area. Paul is very involved with the Free and Open Source Software community, contributing to many widely used projects. In the radio world, Paul spends most of his time working with software defined radios.

• 2025-03-04 ※ Reverse Engineering (another) Restaurant Pager system 🍽️
• 2024-06-14 ※ Reverse Engineering a Restaurant Pager system 🍽️
• 2024-01-22 ※ Writing a simulator to check phased array beamforming 🌀
• 2023-12-13 ※ Overview of the AudioSocket protocol 📞
• 2023-02-22 ※ Announcing hz.tools
• 2022-11-01 ※ Decoding LDPC: k-Bit Brute Forcing
• 2022-04-11 ※ k3xec.com/patty: Go bindings to patty
• 2021-12-06 ※ Proxying Ethernet Frames to PACKRAT (Part 5/5) 🐀
• 2021-12-05 ※ Framing data (Part 4/5) 🐀
• 2021-12-04 ※ Receiving BPSK symbols (Part 3/5) 🐀
• 2021-12-03 ※ Transmitting BPSK symbols (Part 2/5) 🐀
• 2021-12-02 ※ Processing IQ data formats (Part 1/5) 🐀
• 2021-12-02 ※ Intro to PACKRAT (Part 0/5) 🐀
• 2021-11-15 ※ Measuring the Power Output of my SDRs ⚡
• 2020-12-26 ※ Reverse Engineering my Christmas Tree 🎄
• 2020-11-03 ※ Overview of the E4000 RTL SDR Tuner's IF stage 🎚️
• 2020-11-03 ※ Overview of the RFCAP format 📸
• 2020-11-03 ※ Overview of the RTL TCP Protocol 🔊