A variety of 80M ARDF receivers at the second IARU Region II ARDF
Championships in Cincinnati, Ohio.
I love radiosport. In addition to radio contesting,
I have become active in Amateur Radio Direction Finding (ARDF). ARDF is
a map-and-compass sport that includes using handheld radio receivers and
directional antennas to locate radio transmitters in diverse, wooded terrain.
As an Amateur Radio operator, and an active
orienteer, ARDF is a
natural fit to my interests.
My current gear for 144 MHz is a three-element
yagi with a VK3YNG Foxhunt Sniffer Mk4 receiver. I use a pair of very
basic Sony MDR-101LP headphones.
On 3.5 MHz, I am using an
Altai 3,5, a receiver
manufactured in Siberia in 1991. Although not everyone likes them, I've
decided that I really don't mind the heavy, high-impedance headphones that
come with the radio. In addition to the radio gear, I run with
TrekLite Ally Zips gaiters and a
Suunto Arrow 5 thumb compass, both of which I use to compete in orienteering.
My wife and I have been to three USA ARDF Championships, two of which were
also designated IARU Region II ARDF Championships. We are eager to develop
the sport at home in Texas, and have joined forces with fellow enthusiasts
in the Houston area to form a Texas
ARDF group to host local meets and perhaps eventually host a USA
or IARU Region II championships.
I am the webmaster for the IARU Region II
ARDF website, which supports the work of the IARU Region II ARDF Working
Group in organizing and increasing ARDF activities in the Americas.
ARDF is just getting started in Texas. Look for announcements of
upcoming competitions in the Austin and Houston areas.
ARDF in the USA
Read about USA national championships, Team USA at the World Championships,
and a lot more about the growing sport of ARDF in the United States.
IARU Region II
The International Amateur Radio Union (IARU) represents the interests
of Amateur Radio operators worldwide, and is the international organizing
body for ARDF.
2005 IARU Region II ARDF Championships
Jen and I competed in the
Third IARU Region II ARDF Championships held August 1-6, 2005, in
Albuquerque, New Mexico, USA. Jen took home the gold in both the two
meter and the eighty meter D21 categories.
2004 ARDF Yagis
This year, Jen W5JEN and I built or rebuilt tape measure yagis for ARDF.
I reused the PVC in my old tape measure yagi, added 5" to the rear of the
boom, and used PVC pipe hangers to mount a plexiglass plate for the receiver.
Jen built a new tape-measure yagi, using a modified fishing rod with a
cork grip for the boom. The boom-to-element brackets were quarter-round
wood trim, notched and epoxied onto the fishing pole. Her yagi is noticably
lighter than mine.
2003 IARU Region II ARDF Championships
In the summer of 2003, Jen W5JEN and I represented the state of
Texas at the 2003
IARU Region II ARDF Championships held in the woods of the
Cincinnati, Ohio area. Jen won gold in the 80 meter, D21 category!
2002 USA ARDF/Radio Orienteering Championships
In the spring of 2002, Jen Sims W5JEN and I represented the state of
Texas at the 2002
USA ARDF/Radio Orienteering Championships near Pine Mountain, Georgia.