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SDR (Software Defined Radio)

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RTL-SDR, Amateur, Digital Signal Processing, programming, embedded systems, hardware, circuit, raspberryPi, and much more...40 Servers

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18 Apr 2024
@z4non:matrix.orgz4nonthat was also one of my aims, but wasn't sure if i needed proper gear for that and any license. But yes that is one example of why i want it built into my pi-box :)17:45:02
@al9d:pikaviestin.fiWill - AL9DNo license17:45:20
@z4non:matrix.orgz4nonok. nice:D17:45:27
@al9d:pikaviestin.fiWill - AL9DI don't know what weird rules Sweden might have, but generally if you're not transmitting there is no problem.17:46:30
@z4non:matrix.orgz4nonWas kind of tricky to figure out of the laws yes but since the emergency freq are encrypted so one can not use it as a scanner like that anyways. And it is not the goal. So if i was to DL images from sat i guess i would need a proper setup as u explained - so i would have to have it externally.17:48:43
@z4non:matrix.orgz4nonWith loading coil etc. I gotta research all that because its almost greek to me:)17:49:22
@al9d:pikaviestin.fiWill - AL9DLoading coil is only needed for using an antenna too short to be resonant otherwise. For weather sat VHF downlinks just extend the dipole legs to make a 1/2 wave dipole.17:51:16
@al9d:pikaviestin.fiWill - AL9DThere are I think 4(?) currently-operating ones with VHF downlinks that you can easily receive without any special high-gain antennas or downconverters or the like. 3(?) old NOAA satellites with legacy analog downlinks and then Meteor M2-4 with a higher-resolution digital downlink.17:55:45
@z4non:matrix.orgz4nonYes i think you're correct. 3 or 4. Believe this chap mentions it actually. https://youtu.be/icADyjm3PBE18:01:16
@z4non:matrix.orgz4nonThanks for insight though, duly noted, appreciate the help:)18:02:12
@z4non:matrix.orgz4non * Yes i think you're correct. 3 or 4. Believe this chap mentions it actually. edit: or maybe it was another video. https://youtu.be/icADyjm3PBE18:03:55
@al9d:pikaviestin.fiWill - AL9DFWIW I have tried the NOAA analog downlinks a couple times with good success but never set up an automated pipeline for it. Haven't tried the new Meteor satellite yet but probably will in the next few days.18:08:16
@z4non:matrix.orgz4nonOh that is for me years away probably. But im currently starting the research into it. 18:16:26
@al9d:pikaviestin.fiWill - AL9DJust get set up on your computer with the SDR and whatever software you like (I mostly use gqrx but it is buggy and not very featureful and I can't recommend it really) and start playing with it18:24:48
19 Apr 2024
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22 Apr 2024
@ostoba:matrix.orgOŇ°toba
In reply to @al9d:pikaviestin.fi
Just get set up on your computer with the SDR and whatever software you like (I mostly use gqrx but it is buggy and not very featureful and I can't recommend it really) and start playing with it
I used gqrx to listen to ham radios. And then when i started with satellites i switched to sdrAngel, very useful tool.
12:41:02
@petrkr:petrkr.netpetrkrLooks very nice, especially it should run in linux12:56:12
23 Apr 2024
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24 Apr 2024
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25 Apr 2024
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28 Apr 2024
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30 Apr 2024
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1 May 2024
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2 May 2024
@yalekthelembine5435:matrix.orgyalekthelembine5435I find it sad that a lot of the United States does not contain any ducting in the Midwestern parts of the country14:04:11
@yalekthelembine5435:matrix.orgyalekthelembine5435
In reply to @ostoba:matrix.org
I used gqrx to listen to ham radios. And then when i started with satellites i switched to sdrAngel, very useful tool.
I use hdsdr for most of my applications because it reads very very high quality spectrum
14:43:41
@yalekthelembine5435:matrix.orgyalekthelembine5435Especially at 60 frames per second14:43:47
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