Radio Direction Finding

SM5IQ Alf - "Ham" Radio, History of Amateur Radio Direction Finding (ARDF) in Sweden, Genealogy, Nostalgia. In English and Swedish

Doppler Systems - Radio Direction Finding products

KE6HTS ARDF products - RDF - Amateur Radio Direction Finding

Ham Radio communications can be fun ! - Ham radio activities, from satellite operations, eme communications, dxing and contesting, qsling and direction findings, are just some of ham radio exciting activities

N6QAB Radio Direction Finding - N6QAB Radio Direction Finding Web Site, DF vehicles, transmitters, sniffers, dopplers, TH-D7A

Homing In - All about radio direction finding (RDF)

KD6IFZ Radio Direction Finding Page - "Cool links and the ""T-helper Pro"""

Radio Direction Finding SM5SVM - SM5SVM ARDF resources

PB 2 Radio Direction Finding - info on radio direction finding

Polish radio direction finding - IARU region 1 RD championship

Radiopejlorientering - Radio Direction Finding - The Swedish ARDF page is mainly presented in the Swedish language, but some articles are in English.

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

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.

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.

Radio Direction Finding - introduction - History of Radio Direction Finding, performance and limitation of RDF Systems, RDF for non professional use

N6QAB Radio Direction Finding Web Site - Samples and documentation on RDF setups

Transmitter hunting, in San Francisco Priority listing - Amateur radio direction finding, transmitter hunting. triangulating a radio signal direction and plotting its bearing on a map. hunters use doppler systems for tracking hidden transmitters

Direction finding, HVDFA - The HVDFA is dedicated to fostering skills in the area of Radio Direction Finding as an interesting facet of Amateur Radio, both as a sport and for public service, in the multi-state region surrounding the Hudson River Valley of New York.

hamradiodf : Cambs Ham Radio DF'ing - Cambridgeshire England Direction Finding group

ARDF - Peilgruppe Neandertal - Amateurfunkpeilen ( ARDF ) - information about Radio Direction Finding from Germany

VIC ARDF - Victorian Amateur Radio Direction Finding Group

Grandicelli - Hf-vhf-uhf-shf-digital-monitoring-site,wavecom Decoder and tools, winradio and DRM decoders, WD3000 Direction Finding System , radioraft software. PFSL3000 Integrated HF-VHF-UHF signal monitorin

Win APRS - Automatic Position Reporting System windows program, allow monitoring of real time geographical information such as the position of vehicles, the status of weather, radio direction finding and more.

X-APRS - APRS™ for Linux is a multifaceted system for use with packet radio by Hams, it allows the monitoring of real time geographical information such as the position of vehicles, the status of weather, radio direction finding and much much more. It envolves mapping, GPS tracking, packet radio, etc

Offset Attenuator for Radio Direction Finding - Instead of acting directly on the incoming signal, an offset attenuator works by adjusting the strength of an offset signal