40m antenna

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40m antenna

107 links - and 2 categories

Antennas : 10M
  • Shortened dipole for 10 & 40m bands - A shorten Dual-Band Dipole with overall length of about 11 m. For this antenna traps are substituted by inductors, in order to cover the 10 & 40 m. Bands.
    [ Hits: 3902 | Votes: 1 | Rating: 1 ]
Antennas : 160M
  • Invisible DX antenna for the low bands - Article by DK5WL describes a multi-band DX antenna for the 160m-40m amateur radio bands with low visibility but great performance for long distance communication.
    [ Hits: 6438 | Votes: 1 | Rating: 1 ]
Antennas : 40M
  • 40M Reversible Moxon - Moxon antenna project, each side is 51 feet long and the turned in sections are each 7.7ft long. This antenna performed similar to a full size two element yagi for 40 meters.
    [ Hits: 3938 | Votes: 2 | Rating: 9 ]
  • 40M Twin Half-Square Array - 40 meters elevated vertical antenna array at VA7ST
    [ Hits: 3299 | Votes: 2 | Rating: 5.5 ]
  • 40m & 80m portable wire antenna - G8ODE antenna project, where the 40m & Short 80m antenna was deployed as a sloping wire antenna using the 10M fibre glass fishing pole and a hook on the house's gutter-board
    [ Hits: 3080 | Votes: 5 | Rating: 2.4 ]
Antennas : 40M : 40 meter Dipole Antennas
  • Trapped dipole for 80 and 40 m - This article explores a theoretical model for the losses of an 80m / 40m trapped inverted V dipole antenna system using a bootstrap coax trap, but does not examine the pattern of the antenna.
    [ Hits: 2529 | Votes: 0 | Rating: 0 ]
  • Rotatable 40M Dipole - The Linear-Loaded "Crappie" 40M Rotatable Dipole A Short 40 Antenna You Can Build for $50 or Less by VA7ST VE7ASK
    [ Hits: 1783 | Votes: 0 | Rating: 0 ]
Antennas : 40M : 40 meter Vertical Antennas
  • 40m broadband vertical antenna - A loopy loop loaded vertical antenna operating range 7.0 to 7.3 MHz by S. C. Chuck Smith, WA7RAI
    [ Hits: 6160 | Votes: 15 | Rating: 7.52 ]
  • Phased 40M Wire Verticals - Experiments with phased wire vertical antennas on 40 meters at VA7ST
    [ Hits: 2675 | Votes: 2 | Rating: 7.5 ]
  • Vertical Antenna for 7 MHz - DF9CY experience on a vertical antenna for 40 meter band
    [ Hits: 1379 | Votes: 4 | Rating: 3.75 ]
Antennas : Array
  • Yagi for 80 and 40 meters - Design plan of an array of a two element yagis for 80m and a 3 element 40m antenna sharing a single 12 meters long boom by EA5DY
    [ Hits: 1420 | Votes: 4 | Rating: 6.5 ]
Antennas : Dipole
  • Rotatable Dipole for 40m-6m - This article describes a simple, inexpensive, dipole antenna that will rival the performance of a ten-meter beam.
    [ Hits: 4686 | Votes: 8 | Rating: 8.25 ]
  • Wire Dipole for 7.05 MHz - Inverted Vee antenna for 40m with simulation data by DF9CY
    [ Hits: 1403 | Votes: 0 | Rating: 0 ]
Antennas : EH
  • Capacitive Antennas - HB9MTN Capacitive antennas for 40m, 30m AND 20m
    [ Hits: 1241 | Votes: 2 | Rating: 8 ]
Antennas : End-Fed Antennas : Feed Lines : Choke
  • Noise Reduction on 40m - DF9CY implementation of W1HIS suggestion of inserting a common mode choke into a 40m antennas feed-line.
    [ Hits: 1222 | Votes: 0 | Rating: 0 ]
Antennas : Multiband
  • Vertical antenna for Vacation - Vertical Vacation Antenna for 80, 40 and 20 Meter-Band, by Herbert OE3BMB This antenna is a full size λ/4 for 20m and 40m band, and a shortened λ/4 for the 80m band. Generally on the 40m band the SWR is under 1,6. In 80m and 20m band at the resonant frequency the SWR is about 1,1.
    [ Hits: 4857 | Votes: 4 | Rating: 8 ]
Antennas : Vertical
  • G8JNJ Broadband HF Vertical Antenna - G8JNJ Broadband HF Vertical Antenna - Requires no tuner - great results from 40m to 10m plus 80m & 6m with reduced performance
    [ Hits: 4417 | Votes: 4 | Rating: 7 ]
Radio Equipment : Radio Manuals

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