Number stations

• http://www.numbersoddities.nl/ Numbers & Oddities" a.k.a. the "Spooks Newsletter"
• http://www.numbers-stations.com/
• http://www.numbers-stations.com/enigma-newsletters (the old enigma newsletters)
• http://priyom.org/ "приём-priyom" priyom.org has direct one click links to spy stations on websdr.
• http://www.enigma2000.org.uk
• http://www.spynumbers.com/
• https://web.archive.org/web/20160310191401/http://www.simonmason.karoo.net/page30.html
• http://www.apul64.dsl.pipex.com/enigma2000/docs/ENIGMA%202000%20Active%20Station%20List.pdf

conet project

• http://www.irdial.com/conet.htm
• http://irdial.hyperreal.org/the%20conet%20project/

elint / crypto

• http://scz.bplaced.net/ (Der SAS- und Chiffrierdienst (SCD))
• http://www.manfred-bischoff.de/ (idem?)

data decoders

• https://github.com/IanWraith/Rivet

Achtung: Fünnef, zwo, null, null, Trennung...

Deutschlandfunk doku "Achtung: Fünnef, zwo, null, null, Trennung..."

• also contains interview of dutchman Ary Boender
• @26:00 a german ex-spy explains the content of the messages
• @35:00 the last transmission of the stasi transmitter
• raw documentary manuscript

• https://www.google.nl/search?q=Jochen+Schäfer

DDR number stations

DDR numbers stations used to transmit according to the KOBRA system:

• http://scz.bplaced.net/dv040-1-312.html

• http://scz.bplaced.net/m.html
• http://scz.bplaced.net/m.html#k

DDR propaganda transmitters

• http://www.rias1.de/dss1.htm
• https://www.google.nl/search?q=Deutscher+Freiheitssender+904
• https://www.google.nl/search?q=Deutscher+soldatensender+935
• Der Deutsche Freiheitssender 904; Die „Stimme der KPD“ von 1956-1971
• Deutscher Freiheitssender 904 khz Politisches Kleinholz im Bonner Revier
• Interview with radiopersonnel