Radio-Orienteering News and Results

For Southern California

Hidden transmitter hunting under international rules (also called radio-orienteering, fox-tailing, foxhunting and ARDF) now takes place regularly in southern California.  Some participants are training for upcoming national and international competitions, but most are just out there for fun and exercise.  Here's the latest information on these informal sessions.

Next Event:  To be announced.  For e-mail notification of these events, you can join the southern California ARDF mailing list.


Hillcrest Park ARDF
Hillcrest Park ARDF on 5/8/2021
Photos above and report below by Joe Moell KØOV

After 18 months, it was great to have an ARDF session in southern California.  Weather was perfect, snacks were good and everyone was in good spirits.  There was a good turnout from members of the Fullerton Radio club and the GOTAhams club.

In addition to seeing old ARDF friends again, it was great to have some newcomers join in the fun.  I put out three talking two-meter practice transmitters near out gathering spot at the Izaac Walton Cabin.  Several newcomers tested their antennas and techniques by finding these transmitters, including members of the Kim family (Leo KN0LEO, Audrey KN0AUD and Justus KN6NOS).  Kathi Mixon KD6CAF built an antenna kit and shared it with hubby Ken KC6WOK.  Also seeking the practice transmitters were Tom Smith KB6A and Justin Nguyen K6OOF.

The five-transmitter two-meter ARDF course took those who successfully tried it to all of the corners and led them up and down the many hills.  Here are the official results:

      Name and call               Time      Foxes

     Bill Wright WB6CMD          0:35:25      5

     Scott Moore KF6IKO          1:14:00      5

     Erik Wresch W6INE           1:33:55      5
           with Harald Grabowsky AJ6LU 

     Mike Mahan K6MSM            1:48:45      5

     Dale Tyler W6EDT            2:05 approx  5

     Joe Perrigoue K7KCE         1:33:00      4
          with Liam

     Bruce Corning               1:42:54      4

     Steve Herbert K6CRW         1:18:50      3

     Michael Hart KC6MEH         1:30 approx  3

Bill Wright WB6CD, who has competed at the ARDF World Championships, set the pace by sprinting to all of five transmitters and back in just 35 minutes.  He was also the only one to go out to track my 80-meter transmitter at the far north end of the park.  He found this 80-meter fox and returned in just 10:23.

Making this ARDF session possible were Gene Thorpe KB6CMO and Bob Houghton AD6QF of the Fullerton Radio Club.  They made arrangements with the city and brought water and snacks.  Marvin Johnston KE6HTS came from Santa Barbara to put on the antenna-building clinic.  And as always, April Moell WA6OPS brought the traditional Foxhunting Weekend cake.  Thanks to them and to everyone who came out to have fun finding fox transmitters.

Joe Moell KØOV

Bonelli Park ARDF
Bonelli Park ARDF on 11/23/2019
Photos above and report below by Joe Moell KØOV

Weather was ideal at Bonelli Park for our final on-foot transmitter hunting session of the year.  However, when April and I arrived shortly after sunrise, there wasn't a parking place to be found near our gathering point.  The park was full of people warming up for the annual Turkey Trot 5K/10K run.  Fortunately, the run was over and most of the vehicles were out of the way by the time that foxhunting enthusiasts were arriving to build antennas and sniff out hidden transmitters.

For the second time this year, there was a good turnout from the GOTAhams club members, many of whom live near to Bonelli Park.  There were at least a dozen of them, all very enthusiastic.  They fired up one of the park grills and treated us to hot dogs and Texas chili, very welcome after a trip around the park finding transmitters.

There were quite a few of our "regulars" in attendance also.  Most started out or warmed up by finding the five practice transmitters that I put out nearby.  Then those who were still eager for more walking or trotting were given a map and an electronic scoring "stick" and were sent out on the timed five-fox two-meter ARDF course.  Scott Moore KF6IKO set this course, which turned out to be a bit more difficult than he expected.  Here are the results:

      Name and call               Time      Foxes

     Bill Wright WB6CMD          1:46:29      5

     Lu Hastings                 2:27:12      4
        with Daniel Hastings

     Steve Herbert K6CRW         2:19:18      3

     Erik Wresch W6INE           3:04:00      3

     Dave Smith W6DPS            1:48:51      1

     Michael Hart KC6MEH         2:04:54      1
        with Michael Jr.

     Lee Waterman KM6PRE         1:03:00      0

     Dave Guder AI6OU            1:46:32      0

My 80-meter transmitter was 750 meters northeast of the gathering area on the back side of a hill.  But 80m signals aren't blocked by terrain and they don't bounce, so starting bearings were always good.  Two of the 80m huntsrs took the opportunity to try out the new RigExpert 80m ARDF set and one used a just-completed R3500 kit, with these results:

      Name and call            Time  

     Bill Wright WB6CMD       16:30

     Scott Moore KF6IKO       26:00

     Dave Smith W6DPS         35:10

Thanks as always to Marvin Johnston KE6HTS for bringing antenna/attenuator kits and setting up a complete assembly area.  Thanks to Scott Moore KF6IKO for setting out a great two-meter ARDF course and to Bill Wright WB6CMD who helped with transmitter pickup.  April Moell WA6OPS was ready with her First Aid setup, which fortunately wasn't needed this time.  Last but not least, thanks to the GOTAhams and their prime organizers, Ken and Kathi Mixon, KC6WOK and KD6CAF for adding to the fun.

Joe Moell KØOV

Mt. Pinos ARDF
Mt. Pinos ARDF on 7/12-14/2019
Photo above by Michael Hart KC6MEH

This year's ARDF training camp at Mt. Pinos featured all of the popular ARDF events and none of the bears.  As usual, organizer Marvin Johnston KE6HTS camped near the entrance to McGill Campground, which served as the finish line for the ARDF events and site of the Saturday night tri-tip banquet.

Foxoring started the activities on Friday afternoon, with six 80m transmitters to be found.  Course-setter was Marvin.  All participants found all foxes, with these times:

      Name and call          Foxes  Time

     Bill Wright WB6CMD        6     28:10
     Scott Moore KF6IKO        6     34:21
     Joe Burkhead KE8MKR       6     34:57
     Bill Smathers KG6HXX      6   1:14:55

After a good night's rest in the mountain air, the two-meter classic took place on Saturday morning, set by Scott Moore KF6IKO.  Transmitter locations are shown on the map at right, courtesy Eduard Nasybulin. (Click on the thumbnail for full-size version.)  Numbers in bold are the two-meter foxes.  Due to an e-punch setup error, splits in the results below are only shown for transmitters 3, 4 and 5, but the overall times and control counts are believed to be correct.

Classic courses map

      Name and call          Foxes  Time

     Joe Burkhead KE8MKR       5   1:18:48                
      203(1)   205(1)   204(1)        F
       44:20  1:02:25  1:14:07  1:18:48
       44:20    18:05    11:42     4:41

     Bill Wright WB6CMD        5   1:28:17
      203(1)   205(1)   204(1)        F
       44:18  1:08:03  1:25:51  1:28:17
       44:18    23:45    17:48     2:26

     Eduard Nasybulin          5   2:02:25
      203(1)   205(1)   204(1)        F
     1:15:49  1:39:14  1:53:17  2:02:25
     1:15:49    23:25    14:03     9:08

     Brad Weyers               4   2:51:07
      203(1)   205(1)   204(1)        F
     1:27:59  2:16:11  2:44:16  2:51:07
     1:27:59    48:12    28:05     6:51

     Bill Smathers KG6HXX      4   2:54:01
      204(1)        F
     2:54:01  2:54:01
     2:54:01     0:00

     Scot Barth KA6UDZ         3   3:06:12
      203(1)        F
       59:13  3:06:12
       59:13  2:06:59

     Michael Hart KC6MEH       1   3:45:58
      205(1)        F
     2:34:53  3:45:58
     2:34:53  1:11:05

The sprint, set by Eduard Nasybulin, was Saturday afternoon and had ten 80m transmitters. Unfortunately, the sheet with start times was lost. The list below shows the finish placings.

      Name and call          Foxes  

     Bill Wright WB6CMD        10     
     Scott Moore KF6IKO        10     
     Joe Burkhead KE8MKR       10     
     Brad Weyers               10
     Michael Hart KC6MEH        2

After the tri-tip barbecue and another night of bear-free sleep, everyone went back to the starting point near the Nordic Ski Base for the 80m classic event, set by Bill Wright WB6CMD.  Unfortunately, there were failures of MOE and MOH transmitters, so the results below are for a three-transmitter course.  Circled numbers in the map at right above are the 80m transmitter locations.

      Name and call          Foxes  Time

     Eduard Nasybulin          3    42:53
      203(1)   205(1)   202(1)        F
        8:01    19:59    37:04    42:53
        8:01    11:58    17:05     5:49

     Scott Moore KF6IKO        3  1:30:17
      205(1)   203(1)   202(1)        F
       20:43    45:55  1:18:34  1:30:17
       20:43    25:12    32:39    11:43

     Brad Weyers               3  2:32:12
      203(1)   205(1)   202(1)        F
       28:16  1:01:36  2:17:32  2:32:12
       28:16    33:20  1:15:56    14:40

     Bill Smathers KG6HXX      2  2:39:42
      203(1)   202(1)        F
       50:59  2:25:06  2:39:42
       50:59  1:34:07    14:36

Thanks to Marvin for organizing and to everyone who helped with course setting and transmitter pickup.

Oceanside ARDF
Guajome Regional Park ARDF on 5/18/2019
Photos above and report below by Joe Moell KØOV

The annual San Diego area on-foot transmitter hunt brought over twenty persons to Guajome Regional Park in Oceanside.  It's a great place, not too hilly, with plenty of shade and close-by parking.  Hosts Joe Loughlin KE6PHB and Joe Corones N6SZO had their five two-meter ARDF transmitters placed and cycling in plenty of time for the 10:30 start.  Color aerial maps of the park were available for those who wanted to mark their bearings.

Four hunters went out onto the course solo, while others went out in groups of two or three.  It's no surprise that World Championships participant Bill Wright WB6CMD had the best time for all five transmitters, just 41 minutes.  But eight other singles/groups found all five transmitters, with five of them doing it in less than two hours.


Single Hunters: 
           Name and call     Time   Foxes

     Bill Wright WB6CMD      0:41     5

     Dave Smith W6DPS        1:51     5

     Greg Gibbs KI6RXX       2:17     5

     Bill Hober KM6ORF       3:07     5

     Scot Barth KA6UDZ       1:40     3

Two-person Teams:
           Names and calls                            Time  Foxes

     Greg Spaulding W6BAF & Karen Spaulding KI6FON    1:22    5

     Dick Foran K6ES & Mark Ording K6MHO              1:37    5

     Matt Tucker N6EAJ & Ed Hall KI6JMK               1:47    5

     Michael Hart KC6MEH & Mary Ann Hart KM6NCA       3:10    5

     Cliff Steagall N5BXE & Claudia Herbert           4:15    4

     Mike Kehetian KM6SMJ & Bob Kard AI6ZG            2:00    1

Three-person Team: 
           Names and calls                            Time  Foxes

     Bill W6ZM, Brian KI6DUR & Robin Elkerton KM6OUL  1:13    5

By 2:30 PM, the hamburgers, cheeseburgers and hot dogs were coming off the grill onto the plates of the hungry hunters.  As they discussed their experiences on the course, everyone agreed it was a great day of radio foxhunting.

Joe Moell KØOV

Hillcrest Park ARDF
Hillcrest Park ARDF on 5/4/2019
Photos above and report below by Joe Moell KØOV

It's been a two-decade tradition for fans of food and radio foxhunting to gather in north Orange County for "Antennas In The Park."  The first gathering took place in 1998 and it has continued annually (except for one year) ever since.  Originally at Tri-City Park in Placentia, it moved to Hillcrest Park in Fullerton in 2015 and is now headquartered at the Izaak Walton Cabin there.

This year's foxhunting turnout good and everyone was enthusiastic.  Two persons built two-meter antenna/attenuator sets from kits by Marvin Johnston KE6HTS.  Most participants started out by finding the three practice transmitters nearby.  Next, seven persons set out on the international-style two-meter course.  Somehow the controller logic of transmitter MOS got scrambled and it went off the air, so there were only four foxes to find.  Some of these hunters took time out in the middle of their searching to take part in the barbecue.  Here are the results:

      Name and call               Time      Foxes

     Bill Wright WB6CMD          0:32:40      4

     Steve Herbert K6CRW         0:57:50      4

     Rick Stutsman N6IET         1:19:18      3

     Tom Smith KB6A              1:16:33      1

     Dean Dods KD6I             Lunch break   4
        with J. R. Lindauer

     Jordan Heichman WC6J       Lunch break   1

Eighty meters is "the other foxhunting band."  There was one 80m transmitter to find.  Judging by the results, it was probably too close to give a sufficient challenge:

      Name and call            Time  

     Bill Wright WB6CMD        5:47

     Robert Canillas AD6XJ    11:48
        with Jenna Canillas WWØMAN

Thanks to Gene and Cheryl Thorpe, KB6CMO and KE6TZU, who arranged for use of the cabin.  Thanks to Albert Solomon AG6OF for bringing his grills and cooking the meat.  Thanks to Bob Houghton AD6QF for bringing all the vittles, except for the annual Foxhunting Weekend cake, which was bright by April Moell WA6OPS.  And thanks to everyone who came out and made it a great day in the park.

Joe Moell KØOV

Mission Viejo ARDF
Mission Viejo ARDF on 4/20/2019
Photos above by Joe Moell KØOV and Svetlana Kurylovich
Report below by Joe Moell KØOV

Oso Viejo Community Park is a wonderful site for beginning on-foot transmitter hunters.  There is plenty of vegetation for concealing foxboxes.  There isn't much elevation change and there are paved walkways throughout.  Even though there was a major Easter weekend activity in the park, it didn't affect our session much (except for the limited parking).  Our gathering place was a spacious and shaded outside courtyard of the Norman P. Murray Community Center, just outside the room where the South Orange Amateur Radio Association (SOARA) holds its monthly meetings.

Fifteen persons signed in and most of them used their measuring-tape antennas and attenuators to seek my three practice transmitters near the courtyard.  Then they turned their attention to my five-fox ARDF course, with the transmitters all in the foliage near the paved walkways.  The shortest total course length, using these walkways, was 1.3 kilometers or 0.814 mile.  Here are the results:

      Name and call               Time     Foxes

     Bill Wright WB6CMD          0:38:23      5

     Mike Mahan K6MSM            1:19:45      5

     Vladimir Kurylovich KM6RNJ  1:45:30      5
        with Svetlana and Ulyana

     Dale Tyler W6EDT            Untimed      5

     Erik Wresch W6INE           Untimed      5
        with Alex Stoica K6FTL

     Ed Fisher KN6AST            Untimed      5
        with Rich Olaveson K6RJO

     Ed Barnes WA6ED             Untimed      1

Some of the participants didn't catch my request to start out on the five-fox course from the information table, so they weren't timed.

In addition to SOARA's south Orange County residents, we welcomed champion radio-orienteer Bill Wright WB6CMD from Winchester and the Kurylovich family from west Los Angeles.

Many thanks to the members of SOARA and especially Erik Wresch W6INE for sponsoring this session.  Erik also rode his bicycle around the loop afterward to pick up the ARDF transmitters.

Joe Moell KØOV

Yuma Hamfest ARDF
Yuma Hamfest ARDF on 2/16/2019
Report below and photos above by Joe Corones N6SZO

This year's antenna clinic and transmitter hunt at the Yuma Hamfest and Convention was well attended by those building antennas and trying to locate hidden transmitters for the first time.  Twelve people signed in to participate.

Organizer Marvin Johnston KE6HTS provided antenna/attenuator kits and introduction.  Joe Loughlin KE6PHB and I provided support during the antenna kit construction and then hands-on instructions for the practice T's and then the five main T's set out as an international style hunt.

Thanks to Bill Elkerton W6ZM, Robin Elkerton KM6OUL, Dick Foran WB6ZAM, Jerry Petrizze W6VLF, Mike Rienzo KI6ACI, Greg Gibbs KI6RXX, Ron Johnson KK6I, Mike Johnson KD7SBX and Dave Somes WB6TFC, all from San Diego, for hanging out at the start point of the hunt and offering constructive advice to folks in need of assistance and, in many cases, accompanying them out on the course to find the T's.  Five people from the San Diego area were thoroughly indoctrinated on our local San Diego activities, issued a tri-fold and encouraged to come out and ride along on one of our Saturday night hunts.

Joe Corones N6SZO

Los Carneros ARDF
Lake Los Carneros ARDF on 2/9/2019
Photos by Tom Gaccione WB2LRH

The rain stopped a little later than expected, leaving a muddy field for the ARDF session at Lake Los Carneros on February 9.  Marvin Johnston KE6HTS got one transmitter put out, then it was time for the antenna build session.  He finished setting the course at about 10 AM.

Building antennas were Stu Forman AD6SF, president of Conejo Valley ARC and his son Harrison.

      Name and call           Time     Foxes

     Scott Moore KF6IKO      0:42:15      5

     Bill Wright WB6CMD      0:46:00      5

     Stu Forman AD6SF        1:16:00      5
        with Harrison Forman KM6VGE

     Michael Hart KC6MEH     1:43:00      5

     Tom Gaccione WB2LRH     1:19:30      4

Thanks to Marvin for setting the course and to Julianne Walsh KI6DYX for helping the newcomers learn to find transmitters.  Also thanks to the hunters who helped pick up transmitters after the session.

Joe Moell KØOV

Results and Photos of ARDF and ROCA Events in Recent Years

SoCal 2018 -- Southern California practice/demonstration events of 2018, including Hillcrest Park, Lake Los Carneros (2), Mt. Pinos, Santa Fe Dam, Mission Bay Park and Bonelli Regional Park.

SoCal 2017 -- Southern California practice/demonstration events of 2017, including Hillcrest Park, Lindo Lake Park, Mt. Pinos, Cal Poly San Luis Obispo and Bonelli Regional Park.

SoCal 2016 -- Southern California (and Arizona) practice/demonstration events of 2016, including Hillcrest Park, Cal Poly San Luis Obispo, Griffith Park, Lake Murray, Mt. Pinos, Kenneth Hahn State Recreation Area, Lake Los Carneros (2), Schabarum Regional Park and Bonelli Regional Park (2).

SoCal 2015 -- Southern California practice/demonstration events of 2015, including Lake Los Carneros, El Dorado Park, Angel's Gate Park, Mt. Laguna, Hillcrest Park, Cal Poly San Luis Obispo, Bonelli Regional Park, Vasquez Rocks State Park and Schabarum Regional Park.

SoCal 2014 -- Southern California practice/demonstration events of 2014, including Bonelli Regional Park, Topanga State Park (2), Tri-City Park, Schabarum Regional Park, Mt. Pinos (2), Santa Fe Dam Recreational Area, Cal Poly San Luis Obispo and Lake Los Carneros.

June 13 - 17, 2018 -- Eighteenth USA ARDF Championships near Truckee, CA.

July 31 - August 6, 2017 -- Seventeenth USA and Ninth IARU Region 2 ARDF Championships near Cincinnati, OH.

April 6 - 10, 2016 -- Sixteenth USA ARDF Championships near Killeen, TX.

August 27-30, 2015 -- Fifteenth USA and Eighth IARU Region 2 ARDF Championships near Elbert, CO.

June 5 - 8, 2014 -- Fourteenth USA ARDF Championships near Boston, MA.

For results and stories of events before 2014, see this site's Table of Contents

THRDFS cover Go to Championship Foxhunting News -- Results of recent international competitions and announcements of upcoming ones.

Go to International-Style Foxhunting Comes To The Americas -- How we're getting the ball rolling

Go to Equipment Ideas for Radio-Orienteering -- Simple and inexpensive receiving and transmitting solutions

Go to Foxhunting for Scouts -- Let's get the kids involved

Go to Electronic Scoring for ARDF -- What it is, how it works, and why it's gaining popularity.

Go to Extenders Aid Handicapped Foxhunters -- A novel way to include persons with disabilities

Go to Local ARDF Contacts -- Links to hams and groups that are doing international-style foxhunting in North America and around the world.

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This page updated 10 May 2021