[SFDXA] Interesting video about Radio Interception

[Bill Marx]

Long but interesting video about Radio Interception. From the Greenkeys 
list:

http://www.eafa.org.uk/catalogue/5108

Mostly about the role of hams in radio interception work in WW-II.
Made in 1979.

One thing that relates it to greenkeys is that one of the participants
being interviewed is Arthur Gee, well known in RTTY circles, and you
can see a Creed teleprinter behind him in the interview.

Jim W6JVE