To prevent their camp being located or compromised by German radio direction finding equipment or informers, Tonkin regularly moved its location.
32.
Alexander earned her PhD from Newnham College, Cambridge and worked in Radio Direction Finding at Singapore Naval Base from 1938 to 1941.
33.
The four returned to America after ten weeks, with a naval radio direction finding unit and many documents including a'paper Enigma '.
34.
"' Amateur Radio Direction Finding "'is an amateur map and compass sport that combines the skills of orienteering and radio direction finding.
35.
Another variation of the sport, Radio Orienteering in a Compact Area, requires less athletic skill and more technical radio direction finding skills.
36.
"' Amateur Radio Direction Finding "'is an amateur map and compass sport that combines the skills of orienteering and radio direction finding.
37.
KARL was the host society for the 14th World Amateur Radio Direction Finding Championships held in Hwaseong, Gyeonggi, South Korea in September, 2008.
38.
MRSF supports local competitions in Amateur Radio Direction Finding as well as a national team that travels to regional and world championship events.
39.
Early activities of the organization focused on radiosport, and the MRSF was active in promoting Amateur Radio Direction Finding competitions throughout the country.
40.
Competitors start at staggered intervals, are individually timed, and are expected to perform all radio direction finding and navigation skills on their own.
