ARDF
International Competitive
Radio Sport
Highly competitive Radio Orienteering
championships! The internationally recognized R-O competition is called
Amateur Radio Direction Finding (ARDF). The objective is to locate and
zero-in on 5 transmitters as quickly as possible in a forested area. ARDF
competition events are actually very similar to standard Scored Orienteering
(Score-O), but with hidden transmitters at the controls. The course must
be completed within about 2 hours. Competitors select the best route to
the transmitters based upon their own best judgement. A map of the area
is provided but only the finish line transmitter and start point is marked.
Each of the control transmitters
transmits long and short beeps in slow Morse code, the letters MO, MOE,
MOI, MOS, MOH, or MO5. Each transmitter is on for 1 minute and off for
4 minutes. The transmitters are synchronized precisely so that when the
first one stops, the second one starts, and so on. It is not necessary
to learn Morse code, to tell them apart---just count the short beeps.
For more information about ARDF, visit the ROG Link Page:
LINKS TO ARDF WEB SITES
For more information about Technical ARDF, visit the ROG ROCA Page:
Radio
Orienteering in a Compact Area
The
Walking Fox Hunt
ROCA Rules
and Information (a Technical Class ARDF event)
ROG Feedback 
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