SigInt

SIGNAL Intelligence

• Signal Identification (https://www.sigidwiki.com/wiki/ROS)
• Transmission Modes (https://www.wavecom.ch/content/ext/DecoderOnlineHelp/#!worddocuments/acars.htm)
• Signals Received in Europe (https://rxx.classaxe.com/en/reu/signals)
• Number Stations (https://www.numbers-stations.com/military/)
• Priyom Number Stations, Mil Stations & Diplomatic Stations (https://priyom.org/)
• HFUnderground (https://www.hfunderground.com/board/index.php)
• The SWLing Post (https://swling.com/blog/)

UTILITY DX

• The Utility Dxers Forum - Website https://www.udxf.nl/
• The Utility Dxers Forum - Groups.io https://groups.io/g/UDXF
• The Utility Dxers Forum - Numbers & oddities http://www.numbersoddities.nl/index.html

'*SCRIBD Documentation' https://www.scribd.com/

Books & Magazines

• Boeken van Roland Proesch https://frequencymanager.de/
• The SPectrtum Monitor https://thespectrummonitor.com/

Krypto500

• ComintConsulting - Compatible Hardware https://www.comintconsulting.com/systems
• ComintConsulting - Krypto500 smallband https://www.comintconsulting.com/krypto500
• ComintConsulting - Krypto1000 wideband https://www.comintconsulting.com/krypto1000

Number Stations

• Priyom Number Stations, Mil Stations ,Diplomatic Stations (https://priyom.org/number-stations)
• Number Stations (https://www.numbers-stations.com/military/)
• How Spies Communicate Using Shortwave Numbers Stations (https://www.youtube.com/watch?v=w8oWRluC6iI)
• Henry Cooke: Numbers Stations: Cold War, short waves (https://www.youtube.com/watch?v=Qrt1pN4CFCA)

• https://www.comintconsulting.com/sigint
• https://www.rfglobalnet.com/doc/krypto-signals-decoding-and-analysis-suite-0001