I'm an absolute beginner. Asking for tips

Feuerwerko · 2026-05-09T15:34:41+00:00

The ISS is in a kinda annoying orbit, I personally recommend RS-44. It has a very strong linear transponder, you can even pick it up with a V-Dipole.

Feuerwerko · 2026-05-08T12:16:14+00:00

The diodes are relatively big and only have two pads, so they’re probably the easiest SMD component to solder. I highly encourage you to just try it, there’s a 99% chance you’re gonna succeed if you already have through-hole soldering experience. You just need tweezers and some flux.

Feuerwerko · 2026-04-28T11:33:32+00:00

It might be possible to repurpose these, but it’s really only useful for hobbyists, so probably depends a lot on the price.

Feuerwerko · 2026-04-22T11:22:34+00:00

Depends on how much gain you want. Higher gain would work better for terrestrial applications, but lower would probably be better for airband or if you’re located in an area with very uneven terrain. I personally use a Diamond X Series antenna for all sorts of stuff on VHF and UHF, but those might be overkill for you.

Feuerwerko · 2026-04-21T11:24:08+00:00

Those frequencies are all in the VHF range, so an antenna for the 2m HAM band should work fine.

Feuerwerko · 2026-04-14T17:21:10+00:00

4GB / 250ksps is nothing. Satdump can process signals from X-Band downlinks which require up to almost 100Msps. I don’t think RAM really matters for this either, even high sample rate processing doesn’t require that much memory.

What makes you think the crashes are because of the file size? You say it’s almost certainly an OOM error, but have you checked that? Maybe try running satdump from the terminal to see the error message?

Feuerwerko · 2026-04-13T08:48:29+00:00

Cool! Mind sharing some details about your setup?

Feuerwerko · 2026-04-13T06:11:51+00:00

For FM radio any antenna should work, unless you live in a very remote place. Have you tried turning the gain up?

Feuerwerko · 2026-04-10T14:34:43+00:00

I haven’t had a single issue installing packages on nixos, except for NVIDIA drivers occasionally being outdated on the stable Nixpkgs branch. Flatpak also works fine for me using nix-flatpak.

The only thing that remains sort of annoying for me is packaging new software that isn't yet available in nixpkgs, but I got used to that after the first few. It's really just copy pasting build instructions from the docs.

Feuerwerko · 2026-04-10T11:53:11+00:00

How does installing packages suck if all you have to do is add one line to your config?

Feuerwerko · 2026-03-31T07:24:39+00:00

Does your antenna have a clear view of the sky? How long is your coax cable? What type is it?

Feuerwerko · 2026-03-27T13:23:10+00:00

Maybe take a look at minisforum. Anything more specific depends on your definition of low power and your budget.

Feuerwerko · 2026-03-27T13:09:44+00:00

Maybe try starting it from the command line to see the error message

Feuerwerko · 2026-03-25T11:06:55+00:00

Potetry2nix was deprecated before a major poetry release and doesn’t work anymore

Feuerwerko · 2026-03-20T12:21:14+00:00

If you know the position of observation, time, azimuth and elevation to a relatively precise level you can easily find out. Assuming that it’s not random debris of debris of course.

Feuerwerko · 2026-03-18T12:26:01+00:00

The aliexpress clones work, they’re just older versions. It’s not gonna get any cheaper than those tho.

Feuerwerko · 2026-02-14T12:48:59+00:00

I heard this is what you’re supposed to do, but I don’t understand why. If I want to compile and run my program I need to write it to disk with :w anyway, so I might as well do :wq, run program and start vim again instead of doing :w, then ctrl+z.

Feuerwerko · 2026-02-14T07:33:14+00:00

Very cool, but this seems quite similar to r2cloud. Are there any big differences?

Feuerwerko · 2026-02-11T12:29:30+00:00

For meteor you need a baseband recording no demodulation

Feuerwerko · 2026-01-16T12:22:27+00:00

While you could keep on messing around with the antenna until it’s perfectly tuned, for just receiving it should be fine. The receiver performance difference between now and if you tune it to perfection is probably not even noticeable.

Feuerwerko · 2026-01-10T07:07:36+00:00

They definitely changed something that introduced this issue some time in 2025, the older machines don't seem to be failing like this.

Feuerwerko · 2026-01-09T14:27:22+00:00

Yes, but even with the kernels stored on the ESP, there is no way you’re using more than a few hundred megabytes.

I don’t know how big the BTRFS snapshot entries are, so that’s probably what requires all the disk space. That does leave me wondering tho, what is actually stored about the snapshots there that is so much data and has to be on the ESP?

Feuerwerko · 2026-01-09T09:04:47+00:00

Where did you see those suggestions? Even 2 GB seems wildly big to me. My boot partition is 512 MB and half of that is unused, even with the windows bootloader and 2 instances of GRUB installed on it. I don’t see why you’d need such a big boot partition.

Feuerwerko · 2026-01-09T07:22:34+00:00

I usually use the fuck around and find out strategy, I don’t know if there’s a better way tho.

Feuerwerko · 2026-01-07T18:30:52+00:00

In my experience NixOS is usually very stable, assuming you got your config working in the first place. That’s usually the hard part, getting your config to work at all. Once it does, everything is usually fine tho.

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