Edson Pereira, PY2SDR (@py2sdr) header
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Edson Pereira, PY2SDR

@py2sdr

Edson Pereira 🇧🇷 📡 🛰️

 GG56tv
wabicafe.com.br/py2sdr
Joined June 2018
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Photo by Edson Pereira, PY2SDR (@py2sdr)Photo by Edson Pereira, PY2SDR (@py2sdr)Photo by Edson Pereira, PY2SDR (@py2sdr)Photo by Edson Pereira, PY2SDR (@py2sdr)Photo by Edson Pereira, PY2SDR (@py2sdr)Photo by Edson Pereira, PY2SDR (@py2sdr)Photo by Edson Pereira, PY2SDR (@py2sdr)Photo by Edson Pereira, PY2SDR (@py2sdr)Photo by Edson Pereira, PY2SDR (@py2sdr)Photo by Edson Pereira, PY2SDR (@py2sdr)
Edson Pereira, PY2SDR retweeted
David Bowman (@g0mrf) profile picture
David Bowman@g0mrf9 Oct 2023
The first of the PCBs for the latest FUNcube satellite arrived today. 2m power amplifier with input combiner for 3 sources, 4 channels of I2C telemetry and a standalone FM transmitter for 23cm up and 2m down.
Image from David Bowman (@g0mrf)
Image from David Bowman (@g0mrf)
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David Bowman (@g0mrf) profile picture
David Bowman@g0mrf9 Oct 2023
Replying to @manxmatty
Hi Matty. 3 inputs, only one at a time: 1) Mode U/V linear with telemetry. 2) FM up on 1261 tbc FM down on 2m 3) Experimental downlinks using QPSK around 20kbs. -Still under development.
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Daniel Estévez (@ea4gpz) profile picture
Daniel Estévez@ea4gpz14 Sep 2023
NASA is updating their report "State-of-the-Art of Small Spacecraft Technology". They've asked us to revise the section about @gnuradio. I'd like to add a few sentences about the wide range of applications in which GNU Radio is used with small spacecraft. 🧵
A screenshot of the current version of the NASA report, with a couple paragraphs explaining what GNU Radio is, and a flowgraph for an FM receiver.

ALT A screenshot of the current version of the NASA report, with a couple paragraphs explaining what GNU Radio is, and a flowgraph for an FM receiver.

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Edson Pereira, PY2SDR retweeted
Daniel Estévez (@ea4gpz) profile picture
Daniel Estévez@ea4gpz29 Jan 2023
A new stable version of gr-satellites has been released. This includes support for recently launched satellites and a few bug fixes. Conda packages and Ubuntu packages are already available.
A new stable version of gr-satellites has been released. The releases and compatible GNU Radio versions are: GNU Radio 3.10 -> gr-satellites v5.2.0 GNU Radio 3.9 -> gr-satellites v4.9.0 GNU Radio 3.8 -> gr-satellites v3.16.0 Conda packages for all these versions are available. The Ubuntu PPA has a package of gr-satellites v5.2.0 for Ubuntu 22.04 (jammy) and Ubuntu 22.10 (kinetic). Changelog Added Support for BDSat-2 Support for CAS-5A Support for CIRBE Support for HKSAT Support for INS-2B Support for MARIO Support for NUTSat Support for SharjahSat-1 Support for SS-1 Support for TRISAT-R Changed Doppler Correction block: use constant frequency before start of file Doppler Correction block: use logging instead of printing Marked Fixedlen Tagger block as deprecated Fixed Throttle mode when used with --wavfile MTCUBE-2 NORAD ID

ALT A new stable version of gr-satellites has been released. The releases and compatible GNU Radio versions are: GNU Radio 3.10 -> gr-satellites v5.2.0 GNU Radio 3.9 -> gr-satellites v4.9.0 GNU Radio 3.8 -> gr-satellites v3.16.0 Conda packages for all these versions are available. The Ubuntu PPA has a package of gr-satellites v5.2.0 for Ubuntu 22.04 (jammy) and Ubuntu 22.10 (kinetic). Changelog Added Support for BDSat-2 Support for CAS-5A Support for CIRBE Support for HKSAT Support for INS-2B Support for MARIO Support for NUTSat Support for SharjahSat-1 Support for SS-1 Support for TRISAT-R Changed Doppler Correction block: use constant frequency before start of file Doppler Correction block: use logging instead of printing Marked Fixedlen Tagger block as deprecated Fixed Throttle mode when used with --wavfile MTCUBE-2 NORAD ID

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Antonio Matias (@CT1FFU) profile picture
Antonio Matias@CT1FFU30 Jan 2023
New product from DXPATROL, a 1W, 12dB gain booster for 2,4Ghz. dxpatrol.pt/produto/761/. #qo100 #dxpatrol #hamradio.
Image from Antonio Matias (@CT1FFU)
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Amazonia-1 S-Band TLM.
Image from 𝙐𝙎𝘼 𝙎𝙖𝙩𝙘𝙤𝙢™ (@usa_satcom)
Image from 𝙐𝙎𝘼 𝙎𝙖𝙩𝙘𝙤𝙢™ (@usa_satcom)
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Edson Pereira, PY2SDR retweeted
AMSAT-DL (@amsatdl) profile picture
AMSAT-DL
@amsatdl19 Jul 2020
AMSAT-DL submitted a proposal called LunART (Luna Amateur Radio Transponder) on the European Large Logistic Lander. S/X-band transponder to allow similar contacts as via the geostationary #AMSAT QO-100 (P4A) satellite, even worldwide. VHF/UHF also planned. amsat-dl.org/en/lunart-luna-…
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rtl-sdr.com (@rtlsdrblog) profile picture
rtl-sdr.com
@rtlsdrblog7 Jul 2020
Step-by-step Guide to Creating a GNU Radio Based QO-100 SSB Receiver rtl-sdr.com/step-by-step-gui…
Image from rtl-sdr.com (@rtlsdrblog)
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Daniel Estévez (@ea4gpz) profile picture
Daniel Estévez@ea4gpz5 Jul 2020
gr-satellites tutorial session with the students of K.J. Somaiya institute will start shortly at 13:00 UTC. Livestream at youtube.com/watch?v=TceMth67…
Image from Daniel Estévez (@ea4gpz)
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LABRE (@LABRE_BR) profile picture
LABRE@LABRE_BR4 Jun 2020
Brazil has started online amateur radio examinations. @anatel_oficial, the Brazilian Telecomunications Administration has honored a solicitation made by @LABRE_BR, the Brazillian Amateur Radio League. See more at: bit.do/brazilonlineexams @AI6MS @theRSGB @WIAorg @IARU_R2
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Daniel Estévez (@ea4gpz) profile picture
Daniel Estévez@ea4gpz27 Apr 2020
After a month of hiatus, today I got back to writing the gr-satellites v3 docs. Already most of the command line tool documentation is done. This is now the appropriate time for feedback if you always wanted something explained in detail, so check it out gr-satellites.readthedocs.io…
Image from Daniel Estévez (@ea4gpz)
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Edson Pereira, PY2SDR retweeted
Richard Dawkins (@RichardDawkins) profile picture
Richard Dawkins
@RichardDawkins16 Apr 2020
How protein chain folds determines its enzyme role. Folding in turn is determined by amino acid sequence. But predicting folding from sequence is fiendishly difficult, needing formidable computer power. Amazingly, a huge swarm of home computers can do it bit.ly/2RL3tEj
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Daniel Estévez (@ea4gpz) profile picture
Daniel Estévez@ea4gpz19 Apr 2020
New blog post: Wiggles in the QO-100 local oscillator. A detailed report about the wiggles I've been measuring on the BPSK beacon of the QO-100 NB transponder. destevez.net/2020/04/wiggles…
Image from Daniel Estévez (@ea4gpz)
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ALMA Observatory📡 (@almaobs) profile picture
ALMA Observatory📡@almaobs24 Apr 2020
When we grow up we want to be like the #Hubble 🛰️! Today this magnificent space telescope turns 30. And this is the image it took on our birthday on March 13. See the image from your birthday here ⬇️ nasa.gov/content/goddard/wha… #Hubble30 #FridayFeeling
Image from ALMA Observatory📡 (@almaobs)
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Daniel Estévez (@ea4gpz) profile picture
Daniel Estévez@ea4gpz1 Mar 2020
New blog post: Fifth alpha for gr-satellites 3. v3-alpha4 released today, which brings important improvements to the demodulators. destevez.net/2020/03/fifth-a…
Image from Daniel Estévez (@ea4gpz)
Image from Daniel Estévez (@ea4gpz)
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ALMA Observatory📡 (@almaobs) profile picture
ALMA Observatory📡@almaobs16 Feb 2020
📡Interstellar Thread of One of Life’s Building Blocks Revealed. Vídeo by @ESO
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Daniel Estévez (@ea4gpz) profile picture
Daniel Estévez@ea4gpz15 Feb 2020
New blog post: Decoding ESA Solar Orbiter. Technical details (including @gnuradio flowgraph) about how to decode the data of the Solar Orbiter X band downlink that @uhf_satcom @supertrack_it and others have been observing these days. destevez.net/2020/02/decodin…
Image from Daniel Estévez (@ea4gpz)
Image from Daniel Estévez (@ea4gpz)
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Daniel Estévez (@ea4gpz) profile picture
Daniel Estévez@ea4gpz25 Jan 2020
The slides for my talk next weekend in @fosdem are now ready. I'll be speaking in the Free Software Radio devroom about the new features in gr-satellites v3.
Image from Daniel Estévez (@ea4gpz)
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Edson Pereira, PY2SDR retweeted
AMSAT-DL (@amsatdl) profile picture
AMSAT-DL
@amsatdl11 Jan 2020
Replying to @amsatdl @eshailsat
english version: amsat-dl.org/en/qo-100-boden…
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Daniel Estévez (@ea4gpz) profile picture
Daniel Estévez@ea4gpz1 Jan 2020
gr-satellites v2.2.0 just released. This version brings support to several satellites launched during December: @Smog1_pq, ATL-1, @esaoperations OPS-SAT and @FloripaSat github.com/daniestevez/gr-sa…
Release gr-satellites v2.2.0 · daniestevez/gr-satellites

Release gr-satellites v2.2.0 · daniestevez/gr-satellites

gr-satellites January 2020 monthly release Changelog Added Support for SMOG-P and ATL-1 Support for DUCHIFAT-3 Support for OPS-SAT Standanlone decoder for AAUSAT-4 Support for FloripaSat-1 BME tel...

github.com
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