rtl-sdrla9k.net/old/files/joakim-rtl_sdr_presentasjon_la9k.pdf · 2017. 10. 29. · r820t tuner rf...
TRANSCRIPT
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RTL-SDRLA9K Quickstart
av LA2QPA Joakim Skjefstad
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Hva er det?
(Med så mye som mulig i software på PC)
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E4000
Frequency range: 52-2200 MHz (with a gap)
8 bit Analog to Digital
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R820T
Tuner
RF in 8 bit Analog to Digital
Rafael!R820T Realtek!
RTL2832U
Samples out
Frequency range: 24-1766 MHz
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Hva kan jeg gjøre?
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Lytte til FM-radio
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Se på TV
• RiksTV sender ut frikanaler på DVB-T
• Bruk medfølgende CD på en Windows-maskin
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Finne fly
http://www.rtl-sdr.com/adsb-aircraft-radar-with-rtl-sdr/
via ADS-B
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Finne skip
• Ved hjelp av AIS kan vi finne skip.
• https://www.youtube.com/watch?v=CThfM9tPKGM
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Triangulere signaler
http://www.rtl-sdr.com/triangulation-vhf-signal-rtlsdr-scanner/
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Sjekk dine harmoniske
• Bruk HDSDR og record RF mens du sender fra ditt skikkelige utstyr. Deretter spill det av og sjekk ut hvor fint du sender.
• For å scanne opp og ned i frekvens automatisk kan du RTL-SDR Scanner.
• http://eartoearoak.com/software/rtlsdr-scanner
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Finne støykilder
433 MHz, plukker opp bilnøkkel
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Analyser GSM
http://www.rtl-sdr.com/rtl-sdr-tutorial-analyzing-gsm-with-airprobe-and-wireshark/
http://www.diva-portal.org/smash/get/diva2:355716/FULLTEXT01.pdf
https://srlabs.de/decrypting_gsm/
… også kanskje dekryptere?
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Finn posisjon via GNSS
http://www.gnss-sdr.org/documentation/gnss-sdr-operation-realtek-rtl2832u-usb-dongle-dvb-t-receiver
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Lage doppler-radar• https://www.youtube.com/watch?v=KRqtqtCVRR0
http://kaira.sgo.fi/2013/09/16-dual-channel-coherent-digital.html
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Se masse RF• Syv dongler gir ~ 7 MHz
http://openhpsdr.org
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Hør HF vha. upconverter
http://www.nooelec.com/store/ham-it-up-v1-0-rf-upconverter-for-software-defined-radio.html
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Bonus: Hør HF uten upconverter (!)
https://www.youtube.com/watch?v=lrwThfWL8Mw#t=209
0-14.4 MHz lettest
http://www.rtl-sdr.com/rtl-sdr-direct-sampling-mode/
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Radioastronomi
http://www.rtl-sdr.com/low-cost-hydrogen-line-telescope-using-rtl-sdr/
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Men, jeg vil ikke ha en stor PC på hele dagen!
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Bruk en liten PC, da.
Raspberry Pi Beaglebone Black
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5m USB
100mega gigameter Ethernet
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Så, hvorfor vil jeg ha en?
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Fordi…
• Du kan leke med den selv
• Du kan gi den til barn/barnebarn så de kan leke
• Du kan være med på å skape neste generasjons radioamatører
• Du kan ta del i RTL-SDR-miljøet og lære noe nytt
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Hvor får jeg en?• dealextreme.com
• aliexpress.com
• Hos meg :)!
• adafruit.com
• Mange andre steder
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Kule kilder
http://superkuh.com/rtlsdr.html
http://www.rtl-sdr.com
http://sdr.osmocom.org/trac/wiki/rtl-sdr
http://www.ac0c.com/attachments/An_Introduction_to_Software_Defined_Radios_v2a.pdf
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Spørsmål?
www.about.me/joakimsk