douglasvb, to RaspberryPi
@douglasvb@mastodon.social avatar

sigh I really need to come up with a reliable and inexpensive way to power cycle some equipment remotely.

My is up and running but the two software defined radios aren't responding even after rebooting the computer. The computer was involuntarily power cycled twice yesterday when the power went out and when the backup generator transferred the house back to the grid after grid power was restored.

Or maybe the SDRs need to be reseated in their USB ports? 🤔

douglasvb,
@douglasvb@mastodon.social avatar

I had looked into various ways of remotely power cycling the last time I had issues and lots of folks had good ideas but I never identified exactly what I should use.

At least this Raspberry Pi doesn't cook SD cards when it gets involuntarily power cycled.

douglasvb,
@douglasvb@mastodon.social avatar

@ai6yr @kc2ihx

This is the package I'm using: https://github.com/mvp/uhubctl

I sent this command first (I have a RaspberryPi 4B): uhubctl -l 1-1 -a 0

Then I sent this: uhubctl -l 1-1 -a 1

Then I rebooted.

AND NOW THE SWR ADS-B RECEIVERS ARE WORKING AGAIN!!!!

😄

(I need to pin this comment for later...)

mblayman, to python
@mblayman@mastodon.social avatar

🐍 How can you use #Python with Software Defined Radios (#SDR)? In this presentation, Patrick shows us his neat project of applying Python to recording radio signals. https://www.youtube.com/watch?v=MonR5zZL-Es

projectgus, to Electronics
@projectgus@aus.social avatar

Looking forward to the next instalment of this 1983 vintage cable modem teardown and reversing by Jared Boone https://youtube.com/watch?v=8IflOWH8fzY

jos1264, to Software
@jos1264@social.skynetcloud.site avatar
mblayman, to python
@mblayman@mastodon.social avatar

🐍 How can you use #Python with Software Defined Radios (#SDR)? In this presentation, Patrick shows us his neat project of applying Python to recording radio signals. https://www.youtube.com/watch?v=MonR5zZL-Es

conansysadmin, to RaspberryPi
@conansysadmin@mstdn.social avatar

Costing but a few dozen coins, these enchanted boxes can pull whispers out of the aether. #SDR #RaspberryPi #OpenSource https://cromwell-intl.com/open-source/raspberry-pi/sdr-getting-started.html?s=mc

cyclical_obsessive,
@cyclical_obsessive@fosstodon.org avatar

@conansysadmin
Sure wish I did not have to read to the end of your write up to discover that it doesn't cover the 80m,40m,20m,17m amateur radio bands. Nice write up though.

cyclical_obsessive,
@cyclical_obsessive@fosstodon.org avatar

@conansysadmin

I looked on WebSDR.org and found a great online (and free) SDR receiver for Amateur Bands:
http://websdr.lumpkinschools.com/

stfn, to hamradio
@stfn@fosstodon.org avatar

How to make an antenna to receive weather images from NOAA satellites? You can build one from a piece of wire in under 10 minutes.

Video is in Polish, but everything should be understandable without words :)

https://www.youtube.com/watch?v=pPXw1tyE1co

#hamradio #noaa #sdr

mightyspaceman, to hamradio
@mightyspaceman@aus.social avatar

just giving #sdrangel a try...and wow. So many things! it even has ADS-B and AIS decoding built in. How is this software not more known about?

#radio #sdr #hamradio

hb9iah,
@hb9iah@mastodon.radio avatar

@mightyspaceman I thought it’s Windows only.. Now I need to give it a try..

mightyspaceman,
@mightyspaceman@aus.social avatar

@hb9iah yep, it's really nice

k8vsy, to hamradio
@k8vsy@mastodon.radio avatar

I have some beginner questions about SDRs:

  1. Do you need to connect an SDR to a computer?

  2. Do you need special software on a computer to access the SDR? Or are they all web-based these days?

I'm looking at possibly getting this:

https://www.nooelec.com/store/nesdr-smart-xtr-hf-bundle.html

thank you!

holgerschurig,

@k8vsy

Do you need to connect an SDR to a computer?

Some radios like the Elecraft KX 3 or the Icom IC-7300 are actually SDRs. So you don't need to connect all SDRs to a computer.

But SDRs like RTL-SDR, AirSpy, HackRF etc are meant to be controlled from a computer.

Do you need special software on a computer to access the SDR? Or are they all web-based these days?

There are hundreds of SDRs available. Maybe thousands if we count home brew. So no, any factoid claiming to be valid for "all" of them is likely to be wrong. The variety is enormous.

I'd personally say that the minority is web based, most prominent maybe the KiwiSDR and the WebSDR from University in Twente.

mightyspaceman, to random
@mightyspaceman@aus.social avatar

HackRF one ordered
#radio #sdr #hackrf

mightyspaceman,
@mightyspaceman@aus.social avatar
mightyspaceman, to hamradio
@mightyspaceman@aus.social avatar

Going for an upgrade on my SDR situation...I currently just have one of the bare cheapest $20 crappy ones that now has a faulty connector (It was using MCX for goodness sake!)

I'm thinking of going for a Nooelec one. Does anybody have any recommendations? preferably below $100AU

mightyspaceman,
@mightyspaceman@aus.social avatar

I intend to do weather satellite thingies.

mightyspaceman,
@mightyspaceman@aus.social avatar

As well as ADS-B

Baa, to random
@Baa@mk.absturztau.be avatar

It's here! 🎉

Now I have two SDRs, nothing can stop me ​:blobcatfluffevil:​

#sdr #rtlsdr

kaia,
@kaia@brotka.st avatar

@Baa hello, I'm the federal government :LappPeek:

conansysadmin, to RaspberryPi
@conansysadmin@mstdn.social avatar

Costing but a few dozen coins, these enchanted boxes can pull whispers out of the aether. #SDR #RaspberryPi #OpenSource https://cromwell-intl.com/open-source/raspberry-pi/sdr-getting-started.html?s=mc

holgerschurig,

@conansysadmin Is that your website?

Then I wonder why you never visited Germany. Even the travel-by-train from Athens to Paris made you teleport from Czech straight to France :-)

conansysadmin,
@conansysadmin@mstdn.social avatar

@holgerschurig I have just visited it a little. Yes, Athens to Paris involved rolling through Berlin in the night and then changing trains early morning in Cologne!

foss_android, (edited ) to foss
@foss_android@mstdn.social avatar

SatDump
A generic satellite data processing software.

Decode various satellites with SatDump using your Android device and compatible SDR. Receive #NOAA APT & #DSB, #LRPT, #HRPT, and other satellites, including geostationary ones like #GOES, GK-2A, on-the-go.
A good use case is receiving 137Mhz weather satellites conveniently.

Supported SDRs : #RTL-SDR, #Airspy, Airspy HF, #MiriSDR, LimeSDR Mini

Download: https://f-droid.org/packages/org.satdump.SatDump/

#FOSS #Android #Satalite #OpenSource #sdr #radio #satdump

VA3KZR, to Cybersecurity
@VA3KZR@mastodon.radio avatar

If you are an IT professional, cybersecurity specialist or amateur radio operator in Canada - you might consider signing this petition and contacting your MP - banning a specific manufacturer/model of an SDR (software-defined-radio) is sheer lunacy and not going to stop anyone from stealing cars...

https://saveflipper.ca/

#flipperzero #cybersecurity #canada #sdr #electronics #radio #law #politics #cartheft #hamradio #hacking

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