RDF Projects

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Search Results for "RDF Projects"

18 links - and 1 categories

Antennas : VHF UHF
  • 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: 3648 | Votes: 8 | Rating: 4.12 ]
Antennas : Yagi
  • RDF2 two element, close spaced Yagi antenna - This antenna is an adaptation of the RDF2 two element, close spaced Yagi antenna described in the May, 1996 issue of 73 Amateur Radio Today Magazine.
    [ Hits: 8536 | Votes: 8 | Rating: 4.49 ]
Operating Modes : Radio Direction Finding
  • KQ6XA Bonnie Crystal - Lots of projects and introductions to RDF and T Hunting
    [ Hits: 1996 | Votes: 29 | Rating: 5.79 ]
  • WB2HOL RDF Projects - A collection of useful and interesting projects for the RDF enthusiast by Joe WB2HOL
    [ Hits: 2273 | Votes: 6 | Rating: 9.33 ]
  • ARDF Projects by WB2HOL - Antennas, attenuators, Fox Timers and Controllers and Fox Transmitters
    [ Hits: 4101 | Votes: 22 | Rating: 7.37 ]
  • ON7YD ARDF pages - Includes some interesting projects for low power ARDF transmitters
    [ Hits: 704 | Votes: 1 | Rating: 10.00 ]
  • WD4BIS project pages - ARDF projects and info
    [ Hits: 878 | Votes: 0 | Rating: 0.00 ]
  • WA6NOL.com - Ham radio, supercomputer, and ARDF pages and projects
    [ Hits: 519 | Votes: 6 | Rating: 10.00 ]
  • Tape Measure antenna for RDF - An RDF optimized version of popular tape measure antenna
    [ Hits: 205 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Attenuators
  • Active attenuator - This active attenuator works as a simple mixer by WB2HOL
    [ Hits: 845 | Votes: 0 | Rating: 0.00 ]
  • Simple adjustable passive attenuator - This adjustable passive attenuator works as a "waveguide beyond cutoff." It can be constructed in about ten minutes from parts available locally.
    [ Hits: 1055 | Votes: 1 | Rating: 1.00 ]
Technical Reference : Radio Direction Finding
  • The Fox - 40mw transmitter - This RDF two transistor 144 MHz transmitter uses a 48 MHz scanner crystal as an oscillator / tripler. A second transistor boosts the power output to 40 milliwatts.
    [ Hits: 168 | Votes: 0 | Rating: 0.00 ]
  • The Fox - 750 mw transmitter - This RDF three transistor 144 MHz transmitter uses a 48 MHz scanner crystal as an oscillator / tripler. A second transistor boosts the signal to 40 milliwatts, a third amplifies the power output to 750 milliwatts. Includes schematic and pictures.
    [ Hits: 148 | Votes: 2 | Rating: 5.50 ]
  • RDF Yagi with Tape Measure elements - This antenna is an adaptation of the RDF2 two element, close spaced Yagi antenna described in the May, 1996 issue of 73 Amateur Radio Today Magazine.
    [ Hits: 137 | Votes: 0 | Rating: 0.00 ]
  • Active Attenuator - This active attenuator works as a simple mixer. A signal from a 1 MHz oscillator is mixed with the received signal in a 1N914 diode.
    [ Hits: 106 | Votes: 1 | Rating: 6.00 ]
  • Fox Box - Transmitter controller - This FOX-BOX is based on a single CMOS 555 timer and uses an ISD1000 chip to store the transmit ID.
    [ Hits: 73 | Votes: 0 | Rating: 0.00 ]
  • Adjustable Attenuator - A simple adjustable passive attenuator by WB2HOL
    [ Hits: 111 | Votes: 0 | Rating: 0.00 ]
  • The Fox - a 250mw transmitter - This FOX transmitter is equipped with a timer. It can be set to start transmitting up to 24 hours later by Joe Leggio WB2HOL
    [ Hits: 122 | Votes: 1 | Rating: 1.00 ]
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