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

November 23rd, 2025

3 day Radio-O & Orienteering Dec 12-14

Ruth,, Dave and I are hosting a 3-day Radio-O and Orienteering event at our Gray Owl house in Asheboro NC.  Everyone is welcome. (1725 Gray Owl Road, Asheboro, NC)

Radio-O

Friday and Saturday a full sprint and fox-O

Saturday we will also have 2m classic course

Sunday a Classic 80m.course

​Orienteering

Saturday and Sunday there will be a 1hr, 2hr and 4hr Score course (advanced – expert, Orange – Blue).

Friday, Saturday and Sunday White, Yellow  and an Explorer Orienteering course

Friday & Saturday Night a 1 hour night score course

Saturday Evening we will have dinner at our house, and camping is available on our property and nearby commercial campgrounds.  Hotels are available within 15 minutes of Gray Owl.

More details and registration will be available as the date gets closer.

September 29th, 2025

Fall Radio-O Beginner Classes

Learn radio orienteering (aka, ARDF) as the pros learned it. Experience the no-frustration step-by-step approach by which many have learned the sport.

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July 1st, 2025

Results: 2025 USA Radio Orienteering Championships

The 24th US Radio Orienteering Championship

In Central North Carolina from June 14 – 22, 2025

2025 USA Championships Radio-O Results

FoxO Results

FoxO Master Map

FoxO Livelox Event

Sprint Results

Sprint Master Map

Sprint Livelox Event

2m Results

2m Master Map

View Livelox Event

80m Results

80m Master Map

80m Livelox Event

Bulletin 2

Bulletin 2 has all the details that were added throuout the event.

Basic Schedule

  • Practice Days
    • Saturday & Sunday, June 14-15, 2025 – FoxO & Sprint
    • Monday, June 16, 2025 – 2m & Sprint
    • Tuesday, June 17, 2025 – 80m & Sprint
  • Equipment Check, Pre-Event Meeting & Pizza Dinner
    • Wednesday, June 18, 2025 – All transmitter types
  • Championship Races
    • FoxOring – Thursday, June 19, 2025
    • Sprint – Friday, June 20, 2025
    • 2m – Saturday, June 21, 2025
    • 80m – Sunday, June 22, 2025
  • Late fees begin May 1 ($5 per day)

June 23rd, 2025

80m 2025 USA Radio-O Championships Results

80m Master Map 80m Livelox Event 80m 2025 USA Radio-O Championships, Results By Class 2025-06-19 M16 180 min 1 Tiger Zhao BOK 3 p (45:50) 2150752 W16 180 min 1 Anastasia Afonkin 3 p (63:07) 2005093 W19 180 min 1 Adalia Schafrath-Craig BOK 4 p (133:07) 8470477 M21 180 min 1 Eduard Nasybulin 5 p […]

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June 21st, 2025

2m 2025 USA Radio-O Championships Results

2m Master Map View Livelox Event 2m 2025 USA Radio-O Championships,Results by Category 2025-06-19 M16180 min 1 Tiger Zhao BOK 3 p (52:40) 2150752 W16180 min 1 Anastasia Afonkin   0 p (71:51) 2005093 W19180 min 1 Adalia Schafrath-Craig BOK 3 p (95:39) 8470477 M21180 min 1 Eduard Nasybulin   5 p (117:20) 7207970 2 […]

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Next Events

  • Open event: Raven Rock, November 23

    Everyone is welcome to Raven Rock state park on November 23 where we will offer a full range of courses, from beginner to expert. Start any time between 10:00 AM and 1:00, but make sure to check back by 2:00, when control pickup will begin. Map handout, finish, and the start for the white and […]

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  • 3 day Radio-O & Orienteering Dec 12-14

    Ruth,, Dave and I are hosting a 3-day Radio-O and Orienteering event at our Gray Owl house in Asheboro NC.  Everyone is welcome. (1725 Gray Owl Road, Asheboro, NC) Radio-O Friday and Saturday a full sprint and fox-O Saturday we will also have 2m classic course Sunday a Classic 80m.course ​Orienteering Saturday and Sunday there […]

    Read More