4 meter

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4 meter

850 links - and 11 categories

Antennas : 10M Antennas : 15M
  • Small loop antenna for 15 and 20 meters - A Small Transmitting Loop Antenna for 14MHz and 21MHz. This is an antenna you might consider if you have limited space by Lloyd Butler VK5BR
    [ Hits: 3598 | Votes: 1 | Rating: 2 ]
Antennas : 160M
  • 160 meter linear loaded Inverted L antenna - The total length of the inverted L is 240 feet, which is 7/16th of a wave length long. It has a 92 foot horizontal linear load section 1 foot above ground that terminates into a home-brewed parallel network tuner by KN4LF
    [ Hits: 4146 | Votes: 5 | Rating: 5.6 ]
  • The Battle Creek 40 80 160 m antenna - 3 Band vertical Marconi-antenna for the bands 40, 80, 160 meters with a ground net of wires as radials.
    [ Hits: 2727 | Votes: 3 | Rating: 8 ]
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: 4409 | Votes: 2 | Rating: 9 ]
Antennas : 40M : 40 meter Dipole Antennas
  • Portable Dipole Antenna for 7 MHz - A simple portable dipole antenna for the 40 meter band using a total lenght of 18 meter. It can be used for 80 to 10 meters coverage using a antenna tuner.
    [ Hits: 322 | Votes: 2 | Rating: 7.5 ]
Antennas : 40M : 40 meter Loop Antennas
  • Multi-Band Super Mini Loop Antenna - How to make the Super antenna. To build this antenna you need a lot that is at least 100 feet across. Antenna covers all bands 80-10 meters + 30, 17, 12 meter WARC Bands This antenna works as a Full Wave Loop on 80 Meters and also works as a 2 wavelength open loop or Bi-Square on the 40 Meter band
    [ Hits: 23199 | Votes: 8 | Rating: 6.95 ]
Antennas : 40M : 40 meter Yagi Antennas
  • VE7CA portable tribander yagi - 30/17/12 and 20/15/10-Meter Tribanders and a 40 meters inverted V wire yagi antenna
    [ Hits: 2645 | Votes: 1 | Rating: 5 ]
Antennas : 4M
  • Halo antenna for 70Mhz - Halo antenna for 4 meters band with dimensions, pictures and assembling instructions
    [ Hits: 5649 | Votes: 9 | Rating: 8.03 ]
Antennas : EH
  • EH for 40 meters by CO6HK - Article on a homebrewed EH antenna for 40 meters band in spanish
    [ Hits: 2022 | Votes: 5 | Rating: 7.4 ]
Antennas : Halo
  • Mobile 2 meter halo antenna - This HALO design is not ground dependent and can be mounted atop a section of PVC.
    [ Hits: 1910 | Votes: 0 | Rating: 0 ]
Antennas : Multiband Antennas : Tuners
  • Balanced Line Tuner - A small Z-Match tuner, BLT, Balanced Line Tuner is a simple Z-Match tuner that works from 10-40 meters
    [ Hits: 915 | Votes: 0 | Rating: 0 ]
DX Resources : Beacons : 10 meter beacons
  • NGDRT 10 Meter Beacon - NGDRT now sponsors the K4AIS beacon at 28270.5 KHz. Feel free to use this beacon anytime you want to see the propagation into North Georgia.
    [ Hits: 415 | Votes: 0 | Rating: 0 ]
  • KA4RRU Beacon - 10 meter beacon trasmitting from Catlett VA
    [ Hits: 319 | Votes: 1 | Rating: 10 ]
DX Resources : Beacons : Beacon stations
  • DK0WCY - DK0WCY transmits 24 hours per day on 10144 kHz in the 30 meter amateur radio band. QTH in Scheggerott JO44VQ
    [ Hits: 819 | Votes: 2 | Rating: 5.5 ]
Internet and Radio : Sounds Technical Reference : Amplifiers : VHF Amplifiers
  • A 20W Amplifier for 2 meters - VU2RAR basic VHF power amplifier suitable for 144-146 Mhz output power can vary from 3 to 25 Watts.
    [ Hits: 3038 | Votes: 5 | Rating: 6.6 ]
Technical Reference : HF Radios
  • 80 meters cw transceiver - The home made transceiver covers 3.5 to 3.6 MHz and is CW only by GW4ALG
    [ Hits: 4455 | Votes: 4 | Rating: 7 ]
Technical Reference : QRP Projects : QRP CW Transceiver

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