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

February 16th, 2021

ARDF Sprint at Dix Park Feb 21 – Results

It was cold and windy, but the sun was out so we could pretend it was warmer. Charles set an excellent course – it even required map reading – which isn’t easy at Dix. Some people did both the short and long course. The short course was a subset of the long course. An asterisk […]

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February 3rd, 2021

US 2021 ARDF Champs: Bulletin One

Twentieth USA ARDF Championships

Hosted by BOK in North Carolina
Bulletin One

  • Name of the Event
    • Twentieth USA ARDF Championships
  •  Director
    • Joseph Huberman, Joseph@BackwoodsOK.org
  • Registrar
    • Ruth Bromer, Ruth@Treklite.com
  • Host club
    • Backwoods Orienteering Klub, Raleigh, NC
      • Member club of Orienteering USA (United States Orienteering Federation)
  • Internet address for up-to-date information
  • Physical mailing address
    • Address will depend on which venues we are using.
      • 904 Dorothea Drive, Raleigh, NC 27603
      • 1725 Gray Owl Road, Asheboro, NC 27205
  • General location for the event
    • Venue locations depend on Covid restrictions and park permits
      • Raleigh, NC – if venues in the area are available
      • Alternate location: Asheboro, NC
      • National, State and local Covid policies will be respected
  • Itinerary (subject to change)
    • October 10, 2021: Practice Classic Event
    • October 11-13: Informal training and/or practice events with competition equipment
      • Let us know what you would like for these days to help us make plans
    • October 14: FoxOring Champs
    • October 15: Sprint Champs
    • October 16: 2m Classic Champs
    • October 17: 80m Classic Champs
  • The Categories for the competitions
Women (W)Men (M)Age
W19M1919 and younger
W21M21regardless of age
W35M4035/40 and older
W45M5045/50 and older
W55M6055/60 and older
W65M7065/70 and older
December 20th, 2020

ARDF Results Dec 19-20, 2020

It was a beautiful cool day on Saturday for the 2m event. We started about 1k from the house at Birkhead Wilderness, Thornburg Farm Trailhead on top of a ridge. Both days Charles had a 300m start exclusion zone and 400m exclusion zone for the finish. Charles had a sheltered registration area on the back […]

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December 13th, 2020

ARDF Dec. 19-20 Weekend Event

When: Dec 19-20, 2020
Starts from 10am to Noon Course closes at 2PM
Where: Birkhead Wilderness Thornburg Farm
35.620229, -79.945040 
What: Saturday, ARDF 2m
Sunday, ARDF 80m

Register on the BOK website.

Regional travel is unadvisable and our out-of-town participants have not indicated that they are coming, so this is no longer a “Regional” event, but a great weekend event featuring two BOK ARDF competitions. Of course, out-of-town participants are certainly welcome.

Charles has generously offered to set both a 2m and 80m course at Thornburg Farm, so we will meet at the Farm House on both Saturday and Sunday. For those who have the energy, please plan on helping with the control pickup at 2pm.

We recognize that Covid-19 is ubiquitous in NC, so please read and follow all our Covid-19 policies so we can all stay safe.

December 6th, 2020

ARDF Practice Results Dec 9 2020

It was a very successful event. We set out 7 transmitters in seven different regions. Two regions were mostly in the exclusion zone. Those transmitters were on 3.51 on a 30/30 schedule. The other five were further out on 3.58 and on the classic 60/240 schedule. There was no beacon. The closest of the two […]

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