⟩ quikchaos ⟨
⟨ a.k.a. quikchaos ⟩
network engineer building open‑source tools for science and civilization. what i work on changes often; the ecosystem page has the current list.
Disclaimer: All software on this site is provided for personal, educational, and non-commercial research use only. These are hobbyist projects - not certified, validated, or approved for any safety-critical, emergency communications, or operational aviation purpose. See Terms of Use.
ABOUT
I'm quik - network engineer, video gamer, science junkie, and tool builder (dh81 (opens in new tab) on GitLab). I've been around the internet since the late 90s under the handle quikchaos (previously QuiK_ChaoS), mostly lurking in gaming communities, Gentoo forums, photography, and graphic design before shifting back into networking, infrastructure, and system programming.
My favorite languages to learn were Perl and PHP. I prefer generating HTML and CSS, and minimal borrowed JavaScript. I learned C without ever using it much, so getting into Rust from the book was straightforward, but I have much to learn.
I spend a large part of my time studying the capabilities of Veilid (opens in new tab), an open peer‑to‑peer network where traffic is encrypted end to end, and contributing back where I can. The SDR projects below are the other long‑running focus, alongside Deadband (opens in new tab) - a persistent‑universe space strategy game built on a Rust world engine with a Godot client, designed so the universe can persist on Veilid (planned, not built yet). Secure voice network engineering is next.
I also contribute to QX9 (opens in new tab), an engineering and design group working on encrypted infrastructure for critical communications, currently next‑generation 911 (see the ecosystem page).
RADIO SIGNAL MODES
| Mode | Frequency | Modulation | Project | Standard |
|---|---|---|---|---|
| FM HD Radio | 87.5‑108.0 MHz | OFDM + HE-AAC v2 | nrsc5-rs | NRSC-5-D |
| FM Analog | 87.5‑108.0 MHz | WBFM Stereo | dh81-sdr-rs | - |
| AM Broadcast | 530‑1700 kHz | AM Envelope | dh81-sdr-rs | - |
| NWR/SAME | 162.4‑162.55 MHz | NBFM + AFSK | noaa-wx-rs | 47 CFR Part 11 |
| ADS-B | 1090 MHz | PPM / Mode S | dh81-sdr-rs | ICAO Annex 10 |
| AIS | 161.975/162.025 MHz | GMSK 9600 baud | dh81-sdr-rs | ITU-R M.1371 |
| ACARS | 129‑136 MHz | AM/MSK 2400 baud | dh81-sdr-rs | ARINC 618 |
| NOAA APT | 137.1‑137.9 MHz | WBFM + AM 2400 Hz | noaa-wx-rs | NOAA POES |
| RDS | 57 kHz subcarrier | BPSK Manchester | dh81-sdr-rs | IEC 62106:2023 |
| WWV/WWVH | 2.5‑20 MHz | AM + BCD tones | wwv-rs | NIST SP 432 |
| WWVB | 60 kHz | ASK/PM | wwv-rs | IRIG-H |
| DCF77 | 77.5 kHz | ASK | wwv-rs | PTB Germany |
| JJY | 40/60 kHz | ASK | wwv-rs | NICT Japan |
| MSF | 60 kHz | ASK | wwv-rs | NPL UK |
| BPC | 68.5 kHz | ASK | wwv-rs | NTSC China |
| BPM | 2.5‑15 MHz | AM + BCD tones | wwv-rs | NTSC China (HF) |
| RBU | 66.667 kHz | MSK | wwv-rs | VNIIFTRI Russia |
| CHU | 3.33/7.85/14.67 MHz | Bell 103 FSK | wwv-rs | NRC Canada |
PUBLIC PROJECT STATUS
| Project | Version | License | License Rationale | Status |
|---|---|---|---|---|
| nrsc5-rs (opens in new tab) | 0.9.0 | GPL-3.0+ | Derived from GPL-licensed nrsc5 C project | Mature |
| dh81-sdr-rs (opens in new tab) | 0.2.0 | GPL-3.0+ | Links GPL nrsc5-rs; ships dh81-sdr binary + dh81-sdr-common DSP sub‑crate | Active |
| quiktool (opens in new tab) | 0.18.0 | GPL-3.0+ | Links GPL libraries (dh81-sdr-rs) | Active |
| noaa-wx-rs (opens in new tab) | 0.4.0 | MIT | Original work; permissive for downstream reuse | Stable |
| wwv-rs (opens in new tab) | 0.3.1 | MIT | Original work; independent implementation | Stable |
| rtl-sdr-rs (opens in new tab) | 0.3.1 | MPL-2.0 | File‑level copyleft; allows linking from any license | Stable |
