Parsing Base Station format.

http://www.homepages.mcb.net/bones/SBS/Article/Barebones42_Socket_Data.htm

Parsing Virtual Radar Server Format

http://www.virtualradarserver.co.uk/Documentation/Formats/CompressedVrs.aspx

Getting ADSB Data

http://f5ann.pagesperso-orange.fr/PCBActiveAntenna/index.html

http://www.rtl-sdr.com/ads-b-active-pcb-antenna-rtl-sdr/

https://github.com/antirez/dump1090 | https://github.com/MalcolmRobb/dump1090 (second one is best)

http://planeplotter.pbworks.com/w/page/17117313/Using%20Plane%20Plotter%20with%20the%20SBS-1%20and%20BaseStation%20software

http://www.adsbexchange.com/how-to-feed/adding-978-mhz-ads-b-capability-to-your-pipi2/

https://github.com/texane/librtlsdr

MLAT:

https://www.reddit.com/r/RTLSDR/comments/2e6z6d/mlat_with_dump1090/cjx017h

AIS

https://www.tindie.com/products/astuder/daisy-ais-receiver/

Squawk Codes

http://www.faa.gov/documentLibrary/media/Order/JO%207110.66D%20.pdf

https://www.faa.gov/regulations_policies/orders_notices/index.cfm/go/document.information/documentID/99913

Flight Routes

http://www.virtualradarserver.co.uk/FlightRoutes.aspx

More data

http://www.libhomeradar.org/download/index.php#2255009a4a0c17708

https://nfdc.faa.gov/xwiki/bin/view/NFDC/WebHome

http://www.myaviationinfo.com/NavaidData.php?NavaidIdentifier=FLM

http://discussions.flightaware.com/planning-fuelaware/vor-database-t10313.html

http://www.fly.faa.gov/rmt/data_file/airways_db.csv

http://www.fly.faa.gov/PLAYBOOK/pbindex.html

http://www.fly.faa.gov/rmt/d_locid.jsp

http://www.fly.faa.gov/Products/products.jsp

http://www.wayforward.net/avdata/