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Technical RDF Web Sites.
K0OV - Joe Moell's "Homing-In" Page
K6BMG - BMG Engineering, Radio Direction Finding, RDF, T-Hunt, Fox Hunt
KB6DOL - Radio Direction Finding - Dopplers by Ed Greany,
KD6IFZ - Robert Barris's RDF Page
KE4IXL - Dopplers and other RDF gear
N0MJK - Fox hunting and Doppler units
N2KI and W2KI's - Fox hunt Web page
N6BG - Hidden Transmitter Hunting
N6QAB - RDF devices for mobile and on-foot
NZØI - Collapsible quad and active attenuator
PA3EIK - TDOA dual antenna RDF set by Paul Bohrer W9DUU
WB2HOL - Several Do-it-Yourself RDF Projects
Equipment & Software for RDFs.
AHHA! Solutions -- Produces the MicroFinder doppler kit.
Arrow Antenna -- Manufacturer of lightweight VHF/UHF yagis for mobile and on-foot RDF. Also makes resistive attenuators for mobile T-hunting.
APRS for DOS and APRS for Windows/Mac -- Multi-purpose software for object tracking, RDF and much more. Interfaces with GPS and RDF sets. Links tracking sites via packet radio.
BMG Engineering, Inc. -- SuperDF dual antenna phase front (TDOA) add-on for FM receivers.
Cubex Quad Company -- Strung wire VHF cubical quads for RDF.
Dopplers by Greany -- Circuit boards for the Roanoke Doppler.
Doppler Systems, Inc. -- Doppler RDF add-ons for FM receivers featuring patented smooth transition switching.
FAR Circuits -- Circuit boards for the Roanoke Doppler, Montreal Fox Controller, Doppler-to-RS232 Interface and many other home construction projects.
Hamtronics, Incorporated -- Supplier of ham radio kits, including low power VHF/UHF transmitters suitable for fox boxes. T301-2Y synthesized exciter.
Motron Electronics -- Software/hardware for "fingerprinting" and "signature analysis" of received signals.
Optoelectronics -- Frequency counters and "bug busters" for sniffing signals on foot.
PicCon -- Miniature transmitter controller that has modes for both mobile T-hunts and synchronized MOE/MOI/MOS international fox hunts.
Ron Graham Electronics -- Receivers and sniffing antennas for on-foot RDF on 80 and 2 meter bands from VK4BRG.
Ramsey Electronics -- "SlyFox" transmitter and "Foxhound" phase front (TDOA) add-on for FM receivers.
Ultimate Sniffer -- Tiny synthesized two meter receiver specifically designed for RDF on foot by VK3TJN.
Search & Rescue RDF Sites.
Front Range Electronic Direction Finders, Inc. (Colorado), a search/rescue group
Litton Poly Scientific of Blacksburg, VA, maker of Emergency Locator Transmitters (ELTs)
HiTech RDF Equipment for Government & Military.
Condor Systems in San Jose, CA
Cubic Communications (formerly OAR) in San Diego, CA
Litton Amecom in College Park, Maryland
Servo Corporation of America in Westbury, NY
Southwest Research Institute in San Antonio, TX
Thomson-CSF Communications in Gennevilliers, France
Transmitters & Tracking Equipment for Wildlife Management.
AVM Instrument Company in Livermore, CA
Lotek Engineering in Newmarket, Ontario, Canada
Mini-Mitter Company in Sunriver, OR
Titley Electronics in Ballina, Australia
Local T-hunt Web Sites around the U.S.
Fremont, CA and the South San Francisco Bay area
Los Angeles, CA area Saturday night and All Day hunts
Lancaster, CA and the Antelope Valley
Orange County, CA RACES promoted and "Lunch Bunch" hunts
Santa Barbara, CA, by SBARC; also WB6RDV's site has a complete southern California hunt list
Thousand Oaks, CA, also Ventura, Oxnard, Camarillo and southern Ventura County
Chicago FM Club hunt page
Bridgewater, MA and South Shore area
Albuquerque, NM by WB8WFK
All links updated on 1/30/2000
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