| Name | URL |
|---|---|
| Base / Historic | |
| Open Source Mobile Communications | https://osmocom.org/ |
| Open Source Mobile Communications (RTL-SDR Project Page) | https://osmocom.org/projects/sdr/wiki/rtl-sdr |
| Links / Tutorials | |
| RTL-SDR.com | https://www.rtl-sdr.com/ |
| RTL-SDR.com (Quick Start Guide Page) | https://www.rtl-sdr.com/rtl-sdr-quick-start-guide/ |
| RTL-SDR.com (Supported Softwares Page) | https://www.rtl-sdr.com/big-list-rtl-sdr-supported-software/ |
| RTL-SDR.com (SDR# Plugins Page) | https://www.rtl-sdr.com/sdrsharp-plugins/ |
| rtlsdr.org (Some Informations About SDR) | https://rtlsdr.org/ |
| TSF et autres vieilleries (A Good French Website) | https://www.pascalchour.fr/ressources/sdr/sdr.html |
| Drivers / Virtuals | |
| Zadig (SDR USB Dongle Windows Driver) | https://zadig.akeo.ie/ |
| VB-CABLE Virtual Audio Device (Virtual Windows Audio Soundcards) | https://www.vb-audio.com/Cable/ |
| GNU Radio | |
| GNU Radio (Open-Source Software Radio Ecosystem) | https://www.gnuradio.org/ |
| GNU Radio (Open-Source Software Radio Ecosystem) (Windows Builds) | http://www.gcndevelopment.com/gnuradio/downloads.htm |
| SDR Softwares | |
| SDR# (Or SDRSharp) (+ ADSB SPY / SPY Server) | https://airspy.com/download/ |
| SDR-Radio.com (SDR Console) | https://www.sdr-radio.com/ |
| SDRuno (SDR Software) | https://www.sdrplay.com/downloads/ |
| HDSDR (High Definition Software Defined Radio) | http://www.hdsdr.de/ |
| Gqrx SDR (Open-Source Software Defined Radio Application) | http://gqrx.dk/ |
| CubicSDR (Cross-Platform And Open-Source Software Defined Radio Application) | https://cubicsdr.com/ |
| SDR++ (Cross-Platform And Open-Source Simple Software Defined Radio Player) | https://github.com/AlexandreRouma/SDRPlusPlus |
| Linrad (Cross-Platform And Open-Source SDR program) | https://www.sm5bsz.com/linuxdsp/linrad.htm |
| SDRangel (Open-Source SDR Rx/Tx Software) | https://github.com/f4exb/sdrangel |
| Fldigi (Cross-Platform And Open-Source Ham Radio Digital Modem Application) | http://www.w1hkj.com/ |
| SdrGlut (Cross-Platform And Open-Source Simple Software Defined Radio Player) | https://github.com/righthalfplane/SdrGlut |
| SigDigger (Cross-Platform And Open-Source Digital Signal Analyzer) | https://batchdrake.github.io/SigDigger/ |
| ShinySDR (Open-Source SDR Receiver, RTL-SDR, HackRF, or USRP) | https://github.com/kpreid/shinysdr |
| SDR# Plugins | |
| Frequency Manager Suite (SDR# / SDR Console... Frequency Manager Plugins) | http://www.freqmgrsuite.com/ |
| DSD (DSD+ Plugin) (Russian Page But You Can Translate On Top) | http://www.rtl-sdr.ru/page/novyj-plagin-1 |
| TETRA (TETRA Plugin) (Russian Page But You Can Translate On Top) | http://rtl-sdr.ru/page/obnovlen-tetra-plagin-1 |
| rtl_433 (rtl_433 Plugin) | https://github.com/marco402/plugin-Rtl433-for-SdrSharp |
| GSM Softwares | |
| gr-gsm (official) (Gnuradio Blocks And Tools For Receiving GSM Transmissions) | https://osmocom.org/projects/gr-gsm/wiki/Installation |
| gr-gsm (ptrkrysik) (Gnuradio Blocks And Tools For Receiving GSM Transmissions) | https://github.com/ptrkrysik/gr-gsm |
| kalibrate-rtl (GSM Base Stations Scanner For RTL Dongle) | https://github.com/steve-m/kalibrate-rtl |
| kalibrate-hackrf (GSM Base Stations Scanner For HackRF One) | https://github.com/scateu/kalibrate-hackrf |
| Modmobmap (Map 2G/3G/4G And More Cellular Networks) | https://github.com/Synacktiv/Modmobmap |
| Modmobjam (A Smart Jamming PoC For Mobile Equipments) | https://github.com/Synacktiv/Modmobjam |
| IMSI-catcher (Show You IMSI Numbers Of Cellphones Around You) | https://github.com/Oros42/IMSI-catcher |
| Paging Decoders Softwares | |
| PDW (Paging Decoder Software) | https://www.discriminator.nl/pdw/index-en.html |
| Multimon-ng (Open-Source Digital Transmission Decoders) | https://github.com/EliasOenal/multimon-ng |
| Speech Decoders / Trunkers Softwares | |
| Unitrunker (Trunked Radio Decoding Software) | http://unitrunker.com/ |
| TETRA (Terrestrial Trunked Radio) (Speech Plugins / Decoders...) | https://www.rtl-sdr.com/tag/tetra/ |
| Digital Speech Decoder (DSD) (Open-Source Speech Decoders) | https://github.com/szechyjs/dsd |
| DSDPlus - Digital Decoder (DSD+) (Speech Decoders) | https://www.dsdplus.com/ |
| DAB / DAB+ Softwares | |
| welle.io (Open-Source DAB / DAB+ Software) | https://www.welle.io/ |
| QIRX (SDR DAB / DAB+ Software) | https://softsyst.com/QIRX/qirx |
| Planes Softwares | |
| Dump1090 (Open-Source ADS-B Decoder) (Planes Data Decoder) | https://github.com/antirez/dump1090 |
| ModeSDeco2 (ADS-B Decoder) (Planes Data Decoder) | http://xdeco.org/?page_id=30#md2 |
| AcarSDeco2 (ACARS Decoder) (Planes Data Decoder) | http://xdeco.org/?page_id=30#ad2 |
| RTL1090 (ADS-B Decoder) (Planes Data Decoder) | http://rtl1090.com/ |
| adsbSCOPE (ADS-B Radar) (Viewing Planes On A Map) | http://www.sprut.de/electronic/pic/projekte/adsb/adsb_en.html |
| Virtual Radar Server (ADS-B Radar) (Viewing Planes On A Map) | http://www.virtualradarserver.co.uk/ |
| BaseStation (Kinectic) ("Avionic" Virtual Radar Receiver) | http://www.kinetic.co.uk/basestationdownloads1.php |
| Boats Softwares | |
| AISMon (AIS Decoder) (Boats Data Decoder) | https://help.marinetraffic.com/hc/en-us/articles/205339707-AISMon |
| AiSDeco2 (AIS Decoder) (Boats Data Decoder) | http://xdeco.org/?page_id=30#ai2 |
| PNAIS (AIS Decoder) (Boats Data Decoder) | https://sites.google.com/site/f4eyuradio/ais-decoder |
| OpenCPN (Open-Source AIS Radar) (Viewing Boats On A Map) | https://opencpn.org/ |
| GNU AIS (Boats Data Decoder) | http://gnuais.sourceforge.net/ |
| AisDecoder (Boats Data Decoder) | https://www.aishub.net/ais-decoder |
| AisDecoder (by Neal Arundale) (Boats Data Decoder) | https://arundaleais.github.io/docs/ais/ais_decoder.html |
| Satellites Softwares | |
| Orbitron (Satellite Tracking System) | http://www.stoff.pl/ |
| Gpredict (A Real-Time Satellite Tracking And Orbit Prediction Application) | http://gpredict.oz9aec.net/ |
| Weather Satellite Tools (mirror: http://www.satsignal.net/) | http://www.satsignal.eu/software/wxsat.htm |
| WXtoImg (Shareware - Weather Satellite Signal To Image Decoder) | https://wxtoimgrestored.xyz/ |
| WXSat (Old Software - Decodes Satellites Signals) | http://www.hffax.de/html/hauptteil_wxsat.htm |
| GPS / GNSS Softwares | |
| GNSS-SDR (An Open Source Global Navigation Satellite Systems) | https://gnss-sdr.org/ |
| GNSS-SDRLIB (An Open Source GNSS SDR Library) | https://github.com/taroz/GNSS-SDRLIB |
| RTKLIB (An Open Source Program Package For GNSS Positioning) | http://www.rtklib.com/ |
| Software-Defined GPS Signal Simulator (gps-sdr-sim Generates And Transmit GPS Baseband Signal Data Streams) | https://github.com/osqzss/gps-sdr-sim |
| SatGen NMEA Generator (Stream Synthesised GPS NMEA Data, Can Use With gps-sdr-sim) | https://www.labsat.co.uk/index.php/en/free-gps-nmea-simulator-software |
| NASA GPS Broadcast (Daily GPS Broadcast Ephemeris File (brdc), Can Use With gps-sdr-sim) | ftp://cddis.gsfc.nasa.gov/gnss/data/daily/ |
| Pentest Softwares | |
| Universal Radio Hacker (Investigate Wireless Protocols Like A Boss) | https://github.com/jopohl/urh |
| Home Automation/IoT Softwares (433/868/915 Mhz) | |
| rtl_433 (Generic data receiver and decoders) | https://github.com/merbanan/rtl_433 |
| Miscellaneous Softwares | |
| COAA (Some Softwares / Sharewares) (Boat/Plane/Train/GPS/Astronomy/Meteorology/...) | https://www.coaa.co.uk/software.htm |
| Signals Identications | |
| Artemis (Signal Identications Software) | https://aresvalley.com/ |
| Signal Identification Guide (Wiki Page) | https://www.sigidwiki.com/wiki/Signal_Identification_Guide |
| Signal Identification Guide (Wiki Page - All Identified Signals) | https://www.sigidwiki.com/wiki/Database |
| Advanced Hardwares | |
| HackRF One (If You Want More Than An USB Dongle, RX/TX) | https://greatscottgadgets.com/hackrf/ |
| SDRPlay (If You Want More Than An USB Dongle, RX) | https://www.sdrplay.com/ |
| Airspy (If You Want More Than An USB Dongle, RX) | https://airspy.com/ |
| Ettus Research / USRP (If You Have Some Money, RX/TX) | https://www.ettus.com/products/ |
| HackRF One | |
| HackRF One (Main Page) | https://greatscottgadgets.com/hackrf/ |
| HackRF One (Tutorials) | https://greatscottgadgets.com/sdr/ |
| HackRF One (Github: For Firmware Updates, Tools...) | https://github.com/mossmann/hackrf |
| HackRF One (Github Wiki) | https://github.com/mossmann/hackrf/wiki |
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"Aula Internacional 2 Audio Free Download: Accessibility, Copyright, and Alternatives in Language Learning"
Meta Description: Looking for the Aula Internacional 2 audio free download free? Discover legal ways to access the premium audio, plus free resources, study tips, and alternatives for Spanish learners.
When searching for "aula internacional 2 audio free download free", be extremely cautious of:
Sometimes, out-of-print editions or older versions of Aula Internacional (e.g., the 2005 edition) have been uploaded to the Internet Archive as part of their educational preservation. Search for "Aula Internacional 2 audio" – you might find a CD rip that is no longer commercially available.
Whether you find a legal free source or purchase the book, here is how to use the Aula Internacional 2 audio for maximum learning:
A: The full PDF is often shared illegally. However, the publisher’s sample pages (available on the Klett website) include one unit with audio – a legal free preview.
If you cannot find the official audio, use these 100% free, legal, A2-level Spanish listening resources: