4 meter

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4 meter

812 links - and 9 categories

Antennas : 160M
  • KE4UYP Linear loaded vertical antenna  updated - This is a vertically and horizontally polarized antenna the Linear loaded 1/4 wave length vertical radiator introduces very little loss for 80 or 160 meters
    [ Hits: 12900 | Votes: 17 | Rating: 6.58 ]
Antennas : 40M : 40 meter Delta Loop Antennas
  • K4TX Delta Loop for 40 Meters - 40 Meter 2 Element Parasitic Delta Loop wire antenna with pictures of delta loop assembling
    [ Hits: 6571 | Votes: 11 | Rating: 7.83 ]
Antennas : 40M : 40 meter Dipole Antennas
  • Shorty Forty Antenna - Short dipole antenna for 40 meter ham band. Can be put up in the space required for a 20 meter dipole.
    [ Hits: 11689 | Votes: 7 | Rating: 7.85 ]
Antennas : 40M : 40 meter Loop Antennas
  • W7AV 40 Meter Half Square - These antennas offer big gun DX performance on the low bands, yet they are surprisingly simple to build. Try one- you will like it!
    [ Hits: 3481 | Votes: 3 | Rating: 7.67 ]
  • 40 M. triangular full wave vertical loop - A 40 meters band full wave antenna project plan with model, adding the Missing Leg to the Inverted-L Antenna
    [ Hits: 12735 | Votes: 11 | Rating: 7.08 ]
Antennas : Array
  • K5UA 40 meter Phased Array - The intent of this site to share information about the design of a 40 meter horizontal phased array antenna.
    [ Hits: 3199 | Votes: 5 | Rating: 7.00 ]
Antennas : End-Fed Antennas : Magnetic Loop Antennas : Multiband
  • LU9DPD Windom dipole - A multiband windom dipole antenna for 80 40 20 10 meters, feeded with a home made 4:1 balun, in spanish.
    [ Hits: 5072 | Votes: 5 | Rating: 6.00 ]
DX Resources : Beacons : 10 meter beacons
  • IZ1GJH/B 10 meter beacon - Active on 28.321,47 MHz in CW and Qrss3
    [ Hits: 195 | Votes: 0 | Rating: 0.00 ]
  • KD4MZM Beacon system - The kd4mzm ham radio beacon system running a Cobra 148 GTL 40 channel AM/SSB unit modified to the 10 meter band
    [ Hits: 642 | Votes: 0 | Rating: 0.00 ]
Manufacturers : Antennas : HF : Small & Stealth Antennas
  • ZeroFive Antennas - Vertical antennas for all HF bands, expecially 80 40 20 meters bands
    [ Hits: 6671 | Votes: 40 | Rating: 9.24 ]
Technical Reference : Amplifiers : HF Amplifiers
  • N4IP HF and 6 Meters amplifier - A solid state amplifier for HF and 6 meters band by N4IP
    [ Hits: 10041 | Votes: 4 | Rating: 10.00 ]
  • VE6FI 4-1000a amplifier - 15-160 meters HF power amplifier
    [ Hits: 3129 | Votes: 3 | Rating: 9.00 ]
  • 11 KW Linear amplifier by I0JX  pop - Use 4CX10000D / 8171, RF output power of 11 KW in key-down carrier on all bands. Power was measured with a Bird 4712 wattmeter and a 25 KW slug
    [ Hits: 23498 | Votes: 28 | Rating: 7.79 ]
Technical Reference : Amplifiers : VHF Amplifiers Technical Reference : HF Radios
  • 5 Watt 40 Meters transmitter - This circuit is unique in that it uses a power mosfet as a final rather than a conventional bipolar transistor.
    [ Hits: 7996 | Votes: 7 | Rating: 5.29 ]
Technical Reference : Preamplifiers Technical Reference : Transverters
  • HF to 2 meters transverter - F5RDH project of a transverter, that can receive input in HF and convert output to 144 Mhz in french
    [ Hits: 2281 | Votes: 2 | Rating: 1.00 ]
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