@alex Évidemment en repassant au PMR446, j'ai oublié de re-augmenter le gain… Et en plus, mes tous premier test sur #gqrx j’émettais en mode low (économie ed batterie) donc encore plus faible que les 0.5 W P.A.R réglementaires du PMR446…

Quand j'ai testé avec toi, vu la distance, j'ai pensé au mode normal (transmission à 0.5 W PAR)…

Autant j'arrive facilement à capter la tour de contrôle d'un des aérodromes « du coin », avec le RTL SDR et #gqrx (même si le bruit de fond, c'est vite agaçant… faut que je creuse la question)

Autant le #PMR446… Je sais pas encore ce que j'ai raté (et je n'ai pas oublié de rebasculer en NFM) mais pas moyen d’entendre ma propre transmission. Je vois le visuel du signal sur la fréquence attendue au moment d'appuyer sur le PTT mais aucun son.

Listening to baseball on the radio. #WLW 700 kHz via an #Airspy HF+ and a #YouLoop antenna. Transmitter is about 200 miles direct from here, nearly due south along I-75.

There is some noise under the signal but it's very copyable.

Cubs leading the Reds 14-6 bottom of the 7th inning.

Here is a snapshot from #GQRX. I have stations labelled with the baseball team to listen to.

#amdx #baseballdx

Je découvre une alternative #SDR intéressante à l'excellent logiciel #GQRX

Il se nome #SDRAngel Il permet de jouer avec
- Pagers: Décodage simultané de plusieurs pagers (screenshot joint)
- Aviation: ADB-S
- Bateau: AIS,
- Radio/TV numérique: DATV, DAB, DMR
- Méteo: Fax

In dutch, but an example how to promote #hamradio in the #IT and #infosec world.
On the 6th of March, I will give a workshop ethical radio hacking in #Roeselare #Belgium, showing how to receive, analyse and decode the signal from a remote control of a powerplug using #gqrx, #inspectrum and #urh and retransmit it with a HackRF and a sx1276 radiochip.

The goal is to show to non-radio people what radio-signals look like and how they carry information.

more info: https://rsloppost.be/event/ethical-radio-hacking

I blew up my #RaspberryPi over the weekend, moving back to #Raspbian from the (now shelved?) Hypriot OS, having read somewhere that docker is now part of the basic image (or whatever). Also I wanted to play with #gqrx again (but it’s not working 🧐)

Side effect: I reset my #PiHole stats. I’ve now been back up for about 24 hours and it is astonishing how much my Netgear router and my little Roku stick want to phone home. ~1200 blocked attempts by each, so far - very… https://www.rich-text.net/2023/01/24/raspbian

TIL I can watch TV with an Antenna, an #SDR adapter and #GQRX software.

https://marksbench.com/electronics/gqrx-on-the-raspberry-pi-4/

#VLF/#LF/#MF spectrum waterfall recorded for 5 hours overnight with #lightning in the area. Unfortunately the time is incorrect but I started this around midnight, a few hours later a storm system came through. Used an #RTL-SDR and a modified MLA-30 active loop antenna in the attic.

The solid line around 0.060 (60 kHz) is #WWVH. All the stuff on the right pat 0.50 (500 kHz) is the AM broadcast band.

There's harmonic/image of #WWV in there somewhere, probably due to a cheap setup but worth more experimentation to clean up, particularly needs better AM broadcast filtering (it's not supposed to show up). The signal path is <ActiveLoop>--<Power Injector>--<AM Band Filter>--<Upconverter - Ham It Up Nano>--<RTL-SDRv3>

#GQRX #SDR

#Lightning always looks neat in the VLF and LF #radio bands. Setting up for a 5 hour waterfall in #GQRX.

Just listen to the radio, but in a hacker way 😂
but lot more to explore now …
#SDR #Gqrx #radio

RT @albinstigo@twitter.com

Both Airspy drivers are updated for the weekend! Have fun! Best performance so far!

https://github.com/ast/SoapyAirspy
https://github.com/ast/SoapyAirspyHF

@airspy_com@twitter.com #hamradio #gqrx #sigdigger

🐦🔗: https://twitter.com/albinstigo/status/1588658615715782656

Using GQRX to find and listen to voice transmissions on my Pinetab with built in, internal Software Defined Radio (RTL-SDR). #Pinetab #Pinephone #Pine64 #Linux #SDR #Radio #HamRadio #GQRX #Arch https://youtu.be/IgqcJsZRdmw

923 MHz on a quiet Singapore night ... Captured by #Gqrx and #Airspy R2 Software Defined Radio 📻

https://youtu.be/RJIRTz2zUok

HOWTO: open your Pinetab (safely- demo) to install a threaded external antenna port for changing up radio antennas for internal SDR card (Software Defined Radio). I show/go through the process and talk through it. After setting up the external antenna port I test out a Heltec LoRa (Long Range, Low Power ESP32 and we begin videos on SDR using Pinetab/Pinephone. #SDR #Pine64 #Pinetab #Pinephone #Radio #GQRX #LoRa #Linux #ESP32 https://youtu.be/V-C6JzXhXbA

#GQRX has a built-in "AFSK1200 decoder" so you can read AX.25 packets directly from an #SDR.

Here are some local packets!