Have You Read These Articles?
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CQ Magazine, February 2018 -- "Results of the 2017 CQ Worldwide Foxhunting Weekend"
- "'I guess we must have looked odd to everyone in Quilon, driving around helter-skelter with Yagi antennas connected to a transceiver hoisted in the air.' That's how Vilas Rabde recalled last June's hidden transmitter hunt."
- "Mike Ardovino, N2EAB was the fox. In accordance with the rules, he started the hunt with a 5-minute transmission, a 5-minute silent period, then nine 3-minute-on-7-minute-off cycles."
- "On September 16, they gathered at Walter Panas High School for Foxhunt University, organized by Karl Zuk, N2KZ. Karl distilled years of RDF experience into his illustrated talk."
- "NM9J brought Radio Shack scanners to act as flea-power signal sources. With the scanners set to receive on 157.415 MHz and with a first intermediate frequency of 10.85 MHz, their local oscillators radiated on the hunt frequency of 146.565 MHz."
- "'We allowed twenty minutes for the hunters to organize and take up positions to defend the flag,' Robert wrote. 'We could have wandered around a bit to try and confuse them prior to the final approach, but we decided on a direct route."
Twenty persons participated in the annual on-foot transmitter hunt and picnic of the Ski Country Amateur Radio Club near Glenwood Springs, Colorado. In front is the hunt winner, nine year old Sofia Harwood, daughter of Jeremy Harwood, KEØHQO. Read the complete story of Foxhunting Weekend 2017 in the February 2018 issue of CQ Magazine. (Photo courtesy Bob Cutter KIØG)
Homing In, CQ Magazine, November 2017 (Digital only) -- "ARDF Enthusiasts Win Medals in the Buckeye State"
- "This was the third time that hams of the Cincinnati area have hosted USA's championships. Every time, it has gone more smoothly and participants have had more fun."
- VK3WWW: "Each training session was on a real map and various terrains using the actual event transmitters. So we were able to get a real feel for what we are to face when the competition started."
- "USA's championship organizers simply call up the winners to stand before the applause of the audience and the flashing of cameras. With three events, fifteen categories in each and two divisions (IARU Region 2 and visitors), over 200 medals were given out."
- "USA at the Region 3 championships this year were Dale and Kuon Hunt, WB6BYU and KB7WRG of Hillsboro, Oregon. In addition to USA and Mongolia, there were competitors from China, Japan, Kazakhstan, Korea and Australia, as well as observers from Macao."
- KB7WRG: "It is a beautiful and wide open place, with charming, friendly people. The Mongolians put on a great show and most of their logistics were superb."
Fred Mailey K8FCM of the Northeast Ohio Orienteering Club experienced competitive ARDF for the first time at the 2018 USA championships. Read more about these championships in Homing In for November 2017.
Homing In, CQ Magazine, August 2017 -- "New Tools For 80-Meter Foxhunting"
- "Unless you're standing right under a long power line or within inches of a big metal fence, the bearing you get on 80m is almost always accurate. It doesn't matter if you're on a hilltop or deep in a canyon."
- "At these frequencies, a plate-sized loop of four or five wire turns, resonated with a capacitor of about 100 picofarads, is a sensitive and very directional receiving antenna. It couples to the magnetic component of incoming electromagnetic waves."
- "A more compact magnetic antenna for 80m consists of about 40 turns of wire on a small rod of ferrite material. It looks and works just like the "loopstick" antenna in a modern AM broadcast receiver."
- "Beginning this year, there is a competition-grade 80m set made in the USA, the brainchild of Vadim Afonkin KB1RLI. His 80m receiver design features a high-sensitivity superhet receiver with low-drift local oscillator."
- "The newest plug-and-play 80m ARDF set on the market is by far the most feature-rich. The FoxRex 3500 is based on the FJRX85 project by Dr. Nicolas Roethe DF1FO."
Unlike most 80m ARDF sets, the FoxRex 3500 has two cardiod-pattern sense modes, each with its own pushbutton. Read all about two new high-tech ARDF sets for the 80-meter band
in Homing In for August 2017.
Homing In, CQ Magazine, May 2017 -- "Scouts Hunt Transmitters to Earn Merit Badges"
- "It was 1918, about three years after the first issue of QST was published, that the Boy Scouts of America began offering the Wireless Merit Badge."
- "After the championships, Brian realized that it was time for ARDF to move into the mainstream of Scouting, so he contacted Jim Wilson K5ND."
- "These updates are just in time for the 2017 National Scout Jamboree at the Summit Bechtel Scout Reserve in West Virginia, July 19 through July 28."
- "Southern California Scout-O-Ramas are a sort of "activity fair" where Scouts learn from other Scouts about specialized activities of their troops."
- "You have probably forgotten how difficult it is to hold onto even a medium-weight object for a while when you are eight years old. So the lighter the RDF set, the better."
Many young Scouts have difficulty holding a tape-measure yagi. Mounting the receiver to the back of the antenna and adding a handle below at the balance point makes it easier. Learn more about teaching ARDF to Scouts in Homing In for May 2017.
Homing In appeared monthly in 73 Magazine from November 1988 until the magazine ceased publication with the September 2003 issue. My column then appeared in CQ VHF magazine, a quarterly publication, from 2004 through Fall 2013 and CQ-Plus Digital Magazine during 2014. Now it appears four times per year in CQ Magazine, which is available in print by subscription and in Amateur Radio Stores. You can also subscribe to CQ in digital form, viewable on PC, Mac, iPad, iPhone and Android. I welcome your input for future articles, so please continue to send me your news of mobile and on-foot transmitter hunt activities.
The Fine Print: This is the official Web site for Homing In and other KØOV articles about RDF, but not for any magazine. Homing In articles are produced independently in southern California. Text and artwork of all articles Copyright © Joseph D. Moell. All rights reserved.
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This page updated 10 February 2018