Radio Direction Finding

Radio Direction Finding, Ham Fox hunting, radio transmitter hunting

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  • Clubs (19)
    Most Popular
    • Antelope Valley T-Hunting - AVARC - Antelope Valley Amateur Radio Club T-Hunt Page.
      [ Hits: 648 | Votes: 0 | Rating: 0.00 ]
    • 2006 US ARDF Championships - April 8-9, 2006 USA ARDF Championships
      [ Hits: 340 | Votes: 1 | Rating: 1.00 ]
    • 2M Direction Finding Antenna - Article on a 2 meters direction finding antenna written by Chris - KC0TKS
      [ Hits: 637 | Votes: 4 | Rating: 6.00 ]
    • 7db tape measure yagi beam for RDF - A 3 element yagi beam antenna made with a tape measure. This design exhibits a very clean pattern and is perfect for RDF use.
      [ Hits: 3647 | Votes: 8 | Rating: 4.12 ]
    • 80M Fox-Or-Test Transmitter - The 80 metre fox-or/test transmitter is a small low power transmitter which is designed to be used as an alignment aid for running up 80 metre foxhunt or ARDF receivers. It is also usable as a micro transmitter for fox-or-ing events.
      [ Hits: 444 | Votes: 1 | Rating: 6.00 ]
    • 80m sniffer - A full superhetrodyne SSB fox hunting receiver kit
      [ Hits: 518 | Votes: 0 | Rating: 0.00 ]
    • A low power 3.5MHz ARDF transmitter - This low power transmitter is developed for ARDF exercising purposes but of course can be used as super QRP transmitter either. With 1 or 2 meter wire as antenna and a ARDF receiver with ferrite-rod antenna the range is about 100m but with better antennas and a 'real' receiver the range is probably much larger.
      [ Hits: 1649 | Votes: 3 | Rating: 5.33 ]
    • A new method of radio direction finding Priority listing - A method of finding radio sources with antennas based on omni-directionality (the less directional the better coverage). Uses energy levels and some sophisticated math (encompassed in a free software download on the site) to find x,y,z coordinates of the fox relative to the center of your antenna array. Can be overlayed on a GPS map to help you locate in real-time.
      [ Hits: 1995 | Votes: 1 | Rating: 10.00 ]
    • A turnstile antenna for 2-meter ARDF - Antenna design for use with hidden transmitters on international-rules ARDF events
      [ Hits: 15872 | Votes: 19 | Rating: 5.52 ]
    • APRS and Fox Huntinhg - Using APRS For Direction Finding
      [ Hits: 397 | Votes: 0 | Rating: 0.00 ]
    • ARDF in holland - Ardf holland, information about ardf activities in the netherlands, in english and dutch
      [ Hits: 541 | Votes: 0 | Rating: 0.00 ]
    • ARDF Projects by WB2HOL - Antennas, attenuators, Fox Timers and Controllers and Fox Transmitters
      [ Hits: 4101 | Votes: 22 | Rating: 7.37 ]
    • ARDF@DL online - ARDF-Funksport in Deutschland - ARDF-Funksportreferats im DARC
      [ Hits: 381 | Votes: 0 | Rating: 0.00 ]
    • DF Antenna for 2 meters - Direction Finding (DF or Fox) hunts antenna for 144 Mhz
      [ Hits: 2270 | Votes: 2 | Rating: 1.00 ]
    • Far circuits - Direction finding projects, useful tools for t-hunting operations
      [ Hits: 1138 | Votes: 1 | Rating: 10.00 ]
    • Ham Radio in Austin and Central Texas - Transmitter hunting club
      [ Hits: 789 | Votes: 0 | Rating: 0.00 ]
    • Handi-Tenna portable satellite antenna - Here is a high-performance hand-held beam antenna that is easy to build and guaranteed to improve your downlink from the LEO satellites over ANY rubber duck or mobile whip
      [ Hits: 11436 | Votes: 7 | Rating: 7.37 ]
    • Hidden Transmitter Hunting - Lots of information of hidding transmitters, building portable yagi antennas, s-meters, and much more
      [ Hits: 8507 | Votes: 9 | Rating: 4.66 ]
    • Hidden transmitter hunting - Interesting t-hunting projects, from antennas to audible smeters
      [ Hits: 771 | Votes: 0 | Rating: 0.00 ]
    • Homing In - All about radio direction finding (RDF)
      [ Hits: 4794 | Votes: 0 | Rating: 0.00 ]
    • HRX80 80 meters receivers for APRS - 80-meter peilontvanger / receiver includes printed circuit sample and list of components
      [ Hits: 751 | Votes: 3 | Rating: 6.67 ]
    • KQ6XA Bonnie Crystal - Lots of projects and introductions to RDF and T Hunting
      [ Hits: 1995 | Votes: 29 | Rating: 5.79 ]
    • Kq6xa ROCA radio orienteering in a compact area - ROCA Radio Orienteering in a Compact Area, ARDF Foxhunting. T-Hunting. The New Walking Foxhunt "ROCA". Rules and Event Organizational Information. Experimental and Competition Events. Equipment. Links. RDF Radio Direction Finding Systems. Mobile Transmitter Hunting.
      [ Hits: 398 | Votes: 0 | Rating: 0.00 ]
    • Let's Go T-Hunting - An introduction to RDF contesting in southern California, updated from a paper originally submitted for Proceedings of the 1992 West Coast VHF/UHF Conference.
      [ Hits: 531 | Votes: 1 | Rating: 4.00 ]
    • LU6DPP Doppler - Doppler informations, building notes in Spanish
      [ Hits: 965 | Votes: 2 | Rating: 5.50 ]
    • N6QAB Radio Direction Finding - N6QAB Radio Direction Finding Web Site, DF vehicles, transmitters, sniffers, dopplers, TH-D7A
      [ Hits: 4564 | Votes: 5 | Rating: 7.60 ]
    • N6QAB Radio Direction Finding Web Site - Samples and documentation on RDF setups
      [ Hits: 150 | Votes: 0 | Rating: 0.00 ]
    • Offset attenuator project - Build An Offset Attenuator by Joe Moell KOV as featured in Homing In for May 1998
      [ Hits: 1178 | Votes: 4 | Rating: 7.25 ]
    • ON7YD ARDF pages - Includes some interesting projects for low power ARDF transmitters
      [ Hits: 704 | Votes: 1 | Rating: 10.00 ]
    • PA3DFC direction finding - ARDF Homepage, Nederlandse ARDF-Homepage
      [ Hits: 650 | Votes: 1 | Rating: 2.00 ]
    • PB 2 Radio Direction Finding - info on radio direction finding
      [ Hits: 720 | Votes: 0 | Rating: 0.00 ]
    • Polish radio direction finding - IARU region 1 RD championship
      [ Hits: 503 | Votes: 1 | Rating: 3.00 ]
    • Radio Direction Finding - The Utah Amateur Radio Club - Radio Direction-Finding RDF
      [ Hits: 209 | Votes: 0 | Rating: 0.00 ]
    • Radio Direction Finding - introduction - History of Radio Direction Finding, performance and limitation of RDF Systems, RDF for non professional use
      [ Hits: 533 | Votes: 3 | Rating: 3.33 ]
    • Radio Direction Finding SM5SVM - SM5SVM ARDF resources
      [ Hits: 1467 | Votes: 1 | Rating: 7.00 ]
    • Radio Frequency Beacon Finder - This project is a radio frequency receiver that will help the user the trace the direction and distance of transmitter beacon(s) operating at 433MHz frequency by Cornell Univerity
      [ Hits: 1245 | Votes: 6 | Rating: 5.00 ]
    • Radiopejlorientering - Radio Direction Finding - The Swedish ARDF page is mainly presented in the Swedish language, but some articles are in English.
      [ Hits: 486 | Votes: 0 | Rating: 0.00 ]
    • Ron Graham Electronics - Specialising in DF equipment
      [ Hits: 1365 | Votes: 0 | Rating: 0.00 ]
    • Tape Measure Antenna - A tape measure beam antenna, optimized for fox hunting with a 7.3 dBd gain
      [ Hits: 245 | Votes: 1 | Rating: 10.00 ]
    • Tape Measure antenna for RDF - An RDF optimized version of popular tape measure antenna
      [ Hits: 205 | Votes: 0 | Rating: 0.00 ]
    • The Adcock HF RDF Antenna - The Adcock antenna has been used for a long time for RDF. It is basically an interferometer.
      [ Hits: 5179 | Votes: 12 | Rating: 6.01 ]
    • The montreal doppler and more projects - PIC microcontroller projects mainly Fox Hunting
      [ Hits: 826 | Votes: 1 | Rating: 10.00 ]
    • The NKARC Foxhunt Page - Foxhunting is the fine art of wandering aimlessly over hill and dale whilst loaded down with enough electronic equipment to singlehandedly repair the MIR space station...
      [ Hits: 468 | Votes: 1 | Rating: 1.00 ]
    • The VK3YNG sniffer MK3 - This processor controlled autoranging sniffer has become popular for vehicle based foxhunting in Australia
      [ Hits: 347 | Votes: 0 | Rating: 0.00 ]
    • Thunt.org : transmitter hunting - Amateur radio direction finding, transmitter hunting web site from San Francisco. Triangulating a radio signal direction and plotting its bearing on a map. Hunters use doppler systems for tracking hidden transmitters anywhere in the san francisco bay area, fremont california
      [ Hits: 714 | Votes: 1 | Rating: 10.00 ]
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