The Providence Journal has a fascinating piece on the little known story of domestic radio surveillance during WWII. The Intelligence Division of the FCC selected several sites in the U.S. to set up monitoring stations to listen for enemy spies. A wartime short movie featured the radio surveillance effort. The […]
HF/DF
3 posts
I’ll be presenting a paper, “On the Origins of RF-Based Location,” at the 2011 IEEE Radio and Wireless Symposium this morning at 8:00 in room Cira A. The paper collects together the pre-WWII material I’ve blogged about under the History of RF-Based Location category here at ÆtherCzar. This paper will provide […]
High Frequency Direction Finding (HF/DF or “Huff-Duff”) played a critical role in the Second World War. Shore based DF determined the location of German U-boat packs enabling convoys to be routed around them. Ship and airborne DF in conjunction with centimetric radar enabled effective antisubmarine warfare. [1, 2] One of […]