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The Southern Michigan Orienteering Club (SMOC) and Amateur Radio Clubs across southeastern Michigan invite you to attend the 2024 USA Radio Orienteering Championships held in the Chelsea, Michigan area this October.
Registration Deadline Passed
Event Pricing
Event Pricing
| Event | Early (Before June 30) | Regular (Before August 15) | Late (On or After August 15) |
|---|---|---|---|
| Training Camp | $10 | $10 | $15 |
| Practice Day | $10 | $15 | $20 |
| SAR Exhibition | $10 | $10 | $10 |
| Sprint | $20 | $25 | $30 |
| Fox-O | $20 | $25 | $30 |
| 2m Classic | $30 | $35 | $40 |
| 80m Classic | $30 | $35 | $40 |
| All Champ Races | $100 | $120 | $140 |
| All Races, Practices, Trng Camp, SAR team | $150 | $180 | $220 |
Equipment Rental
| Equipment | Rental Fee |
|---|---|
| Radio Receiver | $5 / day |
| Compass | $2 / day |
| SI Timing Card | $2 / day |
Park Entry Fees
You will need to pay for a vehicle pass for the following events & venues:
State Recreation Areas (Training Camp, Fox-O, 2m Classic, & 80m Classic)
Michigan residents: $19 annual vehicle passport or annual passport “P” on your license plate
Michigan residents must either 1) purchase a vehicle “passport” in conjunction with your annual license plate renewal, or 2) purchase at a State Park, Recreation Area, or DNR Service Center and also pay a $5 service charge.
Non-Michigan residents: $40 annual vehicle pass, or $11 per day vehicle pass paid on-site.
Non-Michigan residents may purchase your annual vehicle “passport” online at: https://www.michigan.gov/dnr/buy-and-apply/rec-pp
Hudson Mills Metropark (Sprint)
Every vehicle needs a pass to enter the Hudson Mills Metropark. If you already have an annual Metroparks vehicle pass then you can enter the park with that pass. If you don’t have an annual pass and need a daily pass, indicate in your registration that you will need a vehicle pass and you will be charged the $10 fee for your daily vehicle pass along with your registration fees. You will then be given a QR code to bring with you to the event to scan in at the park entrance gate.
Park Lyndon (Practice Day 1)
Vehicle passes are not required at Park Lyndon
Peach Mountain (Practice Day 2)
Vehicle passes are not required at Peach Mountain and must park offsite, small group only.
What is Radio Orienteering?
Quick Facts
• Also known as “Amateur Radio Direction Finding” (ARDF), the sport of radio orienteering
combines the activities of orienteering (navigation racing) with radio transmitter hunting, giving competitors an exciting physical and mental challenge.
• Competitors hunt multiple transmitters hidden in the woods by using a radio receiver and map.
• The sport has direct application to search & rescue, animal tracking, spectrum management,
law enforcement, military and other important activities.
About the Race
National Ranking Event
• Championship results will be sanctioned for USA Radio Orienteering national ranking calculation.
• Since 2024 is not a World ARDF Championship year, the 2024 USA Championships will not serve as team trials for selection to Team USA.
• National ranking event results are a secondary consideration for team selection and athletes will likely benefit from the experience and preparation for team trials that comes from competing in this championship.
• Training camp and practice event results will not be included in national ranking calculations.
Competition Classes
| Women (W) | Men (M) | Ages |
|---|---|---|
| W12 | M12 | 12 and younger |
| W14 | M14 | 14 and younger |
| W16 | M16 | 16 and younger |
| W19 | M19 | 19 and younger |
| W21 | M21 | Elite / any age |
| W35 | M40 | 35/40 and older |
| W45 | M50 | 45/50 and older |
| W55 | M60 | 55/60 and older |
| W65 | M70 | 65/70 and older |
| W75 | M80 | 75/80 and older |
| * Search & Rescue Team of 3 or more | N/A | |
Race Formats
• Sprint
• Foxoring
• 144 MHz (2m) Classic
• 3.5 MHz (80m) Classic
• Search & Rescue (SAR) Team Exhibition
* We are also consulting with the National Assocation for Amateur Radio (ARRL) about the possibility of adding other senior/youth age classes.
* For the Search & Rescue Exhibition, there will only be on Team class of entry with no age categories involved and at least three people (2 adults minimum) must comprise the team.
Additional Details
Competition Rules
Competition Rules
Download the ARRL Radio Orienteering Rules
Rules Deviations
- Sprint TXs: The Sprint finish beacon and spectator beacon will be separated by 15 kHz. The Spectator and the fast foxes will be separated by 19 kHz.
- Exhibition Contest: More than one event on 12 Oct 2024 to allow for a search & rescue exhibition contest, but this contest does not count for IARU / ARRL championship results.
- Cell Phones: All participants encouraged to carry a fully charted cell phone for emergency use and/or Livelox recording only.
- W75 Class: Offering W75 category on trial basis.
Event Program
5-6 Oct (Sat-Sun): Training Camp – Silver Lake, Pinckney State Rec Area; Pinckney, MI
9 am – 5 pm
7 Oct (Mon) – Rest day, tourism/cultural outings
Time TBA Cultural outing – Henry Ford Museum & F150 Factory; Dearborn, MI
8 Oct (Tues) – Practice – Sprint & Fox-O – Park Lyndon; Chelsea, MI
10:00 am
9 Oct (Wed) – Practice – Classics –Park Lyndon; Chelsea, MI
10:00 am
~2:00 pm Group hike/tour, Stinchfield Woods / Peach Mtn Radio Observ.; Dexter, MI
5:00 pm Info Mtg, Radio Telescope talk, dinner; American Legion Post 31, Chelsea, MI
Volunteer meeting after
10 Oct (Thurs) – Sprint – Hudson Mills Metropark; Dexter, MI
Arrive before 9:30 am
After Sprint Cultural outing – Dexter Cider Mill; Dexter, MI
~6:00 pm Dinner outing – Metzgers German Restaurant; Dexter, MI
11 Oct – (Fri) – Fox-O – Winnewana, Waterloo State Rec Area; Chelsea, MI
First start 10:00 am – Arrive at least 30 min’s before your start time
12 Oct – (Sat) – 2m Classic – Eddy Discovery Ctr, Waterloo State Rec Area; Chelsea, MI
Arrive before 8:30 am
1:00 pm 2m Search & Rescue Exhibition – See details in “Search & Rescue” section
6:00 pm Awards Ceremony & Dinner; American Legion Post 31, Chelsea, MI
13 Oct – (Sun) – 80m Classic – Bishop Lake, Brighton State Rec Area; Brighton, MI
Arrive before 8:30 am
2:00 pm 80m Classic awards & closing
Transmitter Information
Transmitters
Sprint: 3.5 MHz (1 minute cycle – 12 seconds)
- ON7YD ATX80 by G3ZOI, RF power 1 W
- Antenna: Crappie pole 26 foot w/ 3×16 foot ground radials
- Frequency:
TX 1-5: MOE-MO5 – 3.510 MHz
Spectator beacon: MO – 3.545 MHz
TX 1F-5F: MOE-MO5 – 3.579 MHz
Finish beacon: MO – 3.545 MHz
Foxoring: 3.5 MHz (Continuous)
- RF power – Field transmitters: 10 mW, Beacon: 1 W
- Antenna:
Field transmitters – 30 cm vertical + 30 cm counterpoise
Finish beacon – Crappie pole 26 foot w/ 3×16 foot ground radials - Frequencies: TXs 1-10 – Continuous carrier pulse – 3.579 MHz,
Finish beacon – MO – 3.545 MHz
2m Classic: 144 MHz (5 min cycle – 1 min on / 4 min off)
- Foxes: G3ZOI TRO-2, RF power ~0.75W
- Frequency: TXs 1-5: MOE-MO5 – 144.525 MHz
- Antenna: Turnstile using four 19-inch arrow shafts
- Finish beacon: TYT TH-UV88 HT with Arducon controller, RF power ~1W
- Frequency: MO – 144.825 MHz
- Antenna: Eggbeater
80m Classic: 3.5 MHz (5 min cycle – 1 min on / 4 min off)
- ON7YD ATX80 by G3ZOI, RF power 3W
- Foxes: TX 1-5: MOE-MO5 3.510 MHz
- Finish beacon: MO – 3.545 MHz
- Antenna: Crappie pole 26 foot w/ 3×16 foot ground radials
Timing and Scoring
Timing and Scoring
SportIdent (SI, non-AIR) at all controls. Control numbers are written on the SI units. Pin punch backup is attached to the registering SI devices in case of registering device or SI card failure.
Control Flags / Stands
Sprint: 30×30 cm 3-sided white and orange flag at S (spectator) and B (beacon) controls, red and white candy striped SI stand (no flag) at all other controls
Foxoring: 30×30 cm 3-sided white and orange flag at B (beacon) control, no flag and black or yellow SI stand at all other controls
80m Classic: Standard 30×30 cm 3-sided white and orange flags
2m Classic: Standard 30×30 cm 3-sided white and orange flags
Map Details
Sprint map scale: 1:4,000
Foxoring map scale: 1:10,000
Classics map scale: 1:15,000, 1:12,000, or 1:10,000
SAR Exhibition map scale: Any map may be used according to the team’s choice. Many SAR teams use USGS 1:24,000 topo quad maps. Orienteering maps are also permitted.
GPS Tracking
Livelox GPS tracking will be offered so you can record, replay, analyze, and compare your races with family, friends and fellow competitors. Bring your GPS tracking watch and then after the race you can upload your track and replay the race animation to see where everyone ran and see how well you raced!
Awards
Awards
Medals will be awarded to the top 3 finishers in each IARU Region 2 / ARRL USA competition class. The top finishing team in the search & rescue exhibition will receive an award. A “Paul Bunyan Trophy” will also be awarded to the top-scoring male and female athletes who successfully complete all championship races, the search & rescue exhibition race, service project, volunteer, and demonstrate positive sportsmanship.
Get Ready
World-class radio orienteers Charles and Nadia Scharlau (NZ0I & KO4ADV) will provide a quality training camp to all radio orienteers, beginner through experts, who wish to improve their skills the weekend prior to competition week (5-6 Oct 2024) . . . Learn More
All competitors and local search & rescue teams are invited to compete in an exhibition search & rescue distress beacon contest to be held in the 2m band on 121.775 MHz after the 2m Classic championship concludes . . . Learn More
Practice Days
Two practice events (Oct 8-9, 2024) will be offered before official competition begins. The first day of practice will include Sprint and Foxoring format mini-courses to be held at . . . Learn More
Beginner Instruction
If you or anyone you are bringing with you to the event are new to radio orienteering or need help with a refresher, rest assured there will be people to help beginners at the event and we will have equipment to loan to those who need to rent it ($10 per day of use.)