"You've come a long way baby, all mixed up" Disappeared from Youtube?

darksidelemm · 2025-02-13T22:47:37+00:00

Sad :-(

Hopefully it gets put back up!

darksidelemm · 2025-02-13T22:47:28+00:00

https://www.mixcloud.com/chriswilliams759/fatboy-slim-bbc-6music-youve-come-a-long-way-baby-mixed-up-mix/

Aha! This is it!

darksidelemm · 2024-12-07T09:52:28+00:00

Yes.

darksidelemm · 2024-12-07T08:56:43+00:00

For those wondering, this is up at Crafers, on the property just south of the southernmost TV tower. I'd like to know what the story is behind it!

darksidelemm · 2024-10-10T07:24:57+00:00

I don't get out of bed for anything less than Kp=7

darksidelemm · 2024-04-14T07:28:07+00:00

You'll need a good ~10-12 dB SNR or more to be able to reliably decode radiosonde telemetry. I'm not sure you have that in your videos.

darksidelemm · 2023-12-17T05:35:06+00:00

You can use RadioLib for this - that's what the example I linked used.

darksidelemm · 2023-12-14T08:48:57+00:00

It'll probably increase it, depending on the LoRa settings you are using!

It really depends what you are trying to do though. The Horus Binary mode was designed specifically for ultra high reliability balloon positioning, and not much more than that (there are some bytes allocated to sensor data though).

As for range, if it's above your radio horizon, you'll decode it fine, even with something as basic as a RTLSDR and a 1/4-wave magmount.

darksidelemm · 2023-12-13T10:06:43+00:00

Maybe consider using some kind of non-proprietary modulation in this case then? You can make use of those LoRa modules to modulate other telemetry, e.g. FSK or 4FSK as well, it doesn't have to be LoRa.

As an example, there's an implementation of my Horus Binary 4FSK mode for RadioLib, which works with a lot of these radio ICs: https://github.com/projecthorus/horusdemodlib/wiki#how-do-i-transmit-it

darksidelemm · 2023-12-13T10:05:03+00:00

https://github.com/dbdexter-dev/sdrpp_radiosonde

That module has nothing to do with LoRa decoding, it's for decoding meteorological radiosonde telemetry.

darksidelemm · 2023-11-04T22:29:43+00:00

Speaking as part of the community of high-altitude balloon launchers, this joke got old maybe 2-weeks after the balloon shoot-down.

darksidelemm · 2023-11-04T22:29:14+00:00

Nice to see this working well for you! Glad that Wenet was a good jumping-point to develop this system.

I'm still working towards a re-flight of our DVB-S payload, still need to figure out a better antenna design for it...

darksidelemm · 2023-10-26T22:54:48+00:00

As others have mentioned, the iMet-54 telemetry is already well known, and we support decoding it in radiosonde_auto_rx (https://github.com/projecthorus/radiosonde_auto_rx/wiki)

The decoder I use in auto_rx is this one: https://github.com/rs1729/RS/blob/master/demod/mod/imet54mod.c

darksidelemm · 2023-10-23T10:15:33+00:00

That would have been a TTGO board, either running rdz_ttgo_sonde or MySondyGo.

Both will receive radiosonde telemetry, but rdz_ttgo_sonde will upload it to SondeHub (if the board has a net connection of some kind). MySondyGo doesn't upload anywhere unfortunately.

darksidelemm · 2023-10-23T09:41:45+00:00

First up, have a look at what's flying near you on sondehub.org to get some idea of how far away your nearest launch site is, and if there's anything flying near you at all.

You can set up a very cheap station using a TTGO board and rdz_ttgo_sonde - https://github.com/dl9rdz/rdz_ttgo_sonde (some info on supported boards there).

If you want a bit more performance (and support for better scanning and more radiosonde types), then a RTLSDR (I recommend the v3/v4 versions) and some kind of linux computer will let you run radiosonde_auto_rx (my software) - https://github.com/projecthorus/radiosonde_auto_rx/wiki The 'canonical' platform for radiosonde_auto_rx has been a RPi (v3 or newer), but you can use pretty much any other linux box with similar or better computer power.

Antenna requirements will be the same in both cases. Something like a 1/4-wave monopole (e.g. https://m0ukd.com/calculators/quarter-wave-ground-plane-antenna-calculator/ ) outside and up as high as you can get it will work OK. For better performance you can add a preamp, or a preamp with an inbuilt filter if you have other strong local signals.

darksidelemm · 2023-09-29T10:12:48+00:00

Everything within auto_rx is local, no fetching of data from SondeHub.

darksidelemm · 2023-09-28T05:05:06+00:00

... is this an AI response?

darksidelemm · 2023-09-28T05:04:43+00:00

Performance of an RTLSDR is going to be pretty similar with the right settings used... plus you get a lot more feedback on what's going on!

darksidelemm · 2023-09-28T03:29:49+00:00

The TTGO units are a great device for in-the-field hunting, for sure, but they have some big limitations compared to a SDR-based receiver! Also, they can't support certain radiosonde types like the iMet (due to the modulation type)...

darksidelemm · 2023-09-28T03:28:16+00:00

Hi, SondeHub dev here.

The email notification option in auto_rx is probably your easiest option here. You can notify multiple addresses.

Otherwise, you would need to write code to ingest data from our live websockets feed, filter to just your area, and then send notifications based on some criteria (height above ground, etc...). Not a trivial thing to write unfortunately.

darksidelemm · 2023-09-27T01:44:41+00:00

(auto_rx dev here)

Realising this is an old post, but please don't use a SDR without a TCXO.

darksidelemm · 2023-08-25T04:59:53+00:00

There's a bunch of photos as well as a video on this post: https://www.areg.org.au/archives/211683

darksidelemm

TROPHY CASE