RustRadio improved API 0.4
Since last time, I’ve improved the API a bit. That last post was about API version 0.3. Now it’s on 0.4, and I think it’s getting pretty decent. 0.3 could never have worked very well.…
Category: Habets
SDR transmit and clean signals
If you have a transmit capable SDR, you may have heard that you need to filter its output, before transmitting to the world. Certainly before amplifying the signal. I have a TinySA Ultra spectrum analyzer,…
AX.25 and 9600bps G3RUH decoding
I’ve been coding more on my rust SDR framework, and want to improve my ability to send/receive data packets efficiently and reliably. There are two main ways I use learn to do this better: designing…
Setting up secure wifi
If you don’t set a password on your wifi, then not only can anyone connect, but it’s not even encrypted. This means that even when an open network gives you a captive portal, that could…
RustRadio, and Roast My Rust
I’m learning Rust. And I like playing with software defined radio (SDR). So the natural project to take on to learn Rust is to write a crate for making SDR applications. I call it RustRadio.…
Downloading web resources
Last time I went to the dentist, they offered to use a fancy scanner to better be able to show me my teeth. Who can say no to that? I already for fun got a…
The unreasonable effectiveness of radio
Light and radio transmissions are the same thing, just using different frequencies. How is it reasonable that I can transmit with a radio using the energy of a low energy light bulb (10 watts), and…
Multichannel fast file transfers over AX.25
Lately I’ve been thinking about a better data protocol for amateur radio. “Better” is, of course, relative. And the space is so big. Are we talking HF or VHF/UHF? Should it work with existing radios…
ZModem over amateur radio
While I have built a file transfer protocol for AX.25, I also wanted to try old BBS era protocols. They’re more tested and standardized. The easiest way is probably to take lrzsz and let it…
Linking statically, and glibc breaking userspace for fun
glibc is annoyingly eager to break userspace. You can’t just build something that only depends on libc and expect it to work on all linux systems of that architecture. I don’t know why Linus Torvalds…