Radio Orienteering

Amateur Radio Direction Finding (ARDF)

Welcome to Radio-O.  Here is how it works! We provide a radio receiver with a directional antenna, an orienteering map, a compass, and a finger stick. By pointing the antenna and listening to the signal you can determine the direction of the signal.  Using this information you navigate to the transmitter and punch in with your finger stick. Only the start and finish are marked on the map and it is important to keep track of where you are.  To qualify as finishing you must find at least one transmitter on your course and reach the finish within the time limit. To calculate results -- first; the number of assigned transmitters you found, then; your time on the course. We offer beginner through advanced courses, Regular BOK fees apply, and Pre-Registration is required.

Latest News in Radio Orienteering

August 4th, 2019

Results Sunday – ARDF 80m (adults) and 2m (youth) championship

Sunday was the last day of competitions. The adults had a remote start while the kids stayed near the shelter the whole time. Unfortunately, two participants got lost and had to ask for help to find their way back to the finish. Results are below. This concludes our week of events. Thank you all for […]

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August 3rd, 2019

Results Saturday – ARDF 2m (adult) and 80m (youth) championship

On Saturday we had two events: 80m for the youth and 2m for the adults. The adult 2m course turned out to be quite challenging, a lot of competitors came back with fewer controls than they had been assigned, a few even went overtime. The 80m course was easier. Results are below. Tonight we’ll have […]

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August 2nd, 2019

Results Friday – ARDF Sprint Championship

After some scary thunderstorms Thursday afternoon and evening we had a lovely Friday morning at Bond park for our sprint championship. This is a fast paced event, where quick thinking generally beats fast running. Results are below. A few competitors ran overtime. Some of my photos from today are here. Charles’s photos (including the group […]

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August 1st, 2019

Latest Updates for the ARDF Championships

Link to Bulletin 4 Use this link to see who has already registered: Sunday’s event is at Umstead South, 2100 North Harrison Ave. Cary, NC, which is off of exit 287 in I-40. Arrive by 8:00am to drop your stuff at Shelter #1 at the left (west) side of the parking lot. The youth will […]

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August 1st, 2019

Results Thursday – ARDF fox-o championship

Aaaaand…. we’re off! This morning we officially started the first of our four championship events: fox-orienteering at Eno River State Park. Joseph (again) designed a challenging set of courses for all levels. Apart from a couple of minor injuries everyone finished safely. Some people reported that they couldn’t hear certain transmitters while others said that […]

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