4 meter

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Search Results for "4 meter"

726 links - and 2 categories

Antennas : 160M
  • KE4UYP Linear loaded vertical antenna - 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: 12160 | Votes: 16 | Rating: 6.49 ]
  • Trapped dipole for 40-80-160 meters  pop - Build a space efficient trapped dipole antenna for 40-80-160 meter bands using RG-58 and PVC pipe by W8NX
    [ Hits: 83446 | Votes: 98 | Rating: 6.04 ]
Antennas : 40M
  • 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: 3287 | Votes: 3 | Rating: 7.67 ]
  • K4TX Delta Loop for 40 Meters - 40 Meter 2 Element Parasitic Delta Loop
    [ Hits: 6270 | Votes: 9 | Rating: 8.34 ]
  • 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: 10888 | Votes: 7 | Rating: 7.85 ]
  • Sterba Curtain Antenna for 40 meters - A forty meters band sterba curtain antenna notes by KB8PGW
    [ Hits: 3302 | Votes: 9 | Rating: 5.44 ]
  • 40 meter delta loop - M0MCX - Pictures and details of a wire delta loop antenna for 40 meters band
    [ Hits: 7147 | Votes: 4 | Rating: 8.50 ]
  • 40 meter shortened dipole - M0MCX - Interesting little project with a couple of loading coils by M0MCX
    [ Hits: 12769 | Votes: 7 | Rating: 7.43 ]
Antennas : 80M
  • Magnetic Loop for 80 and 40 Meters - A Magnetic loop antenna for the low bands, GŁnther Majewski, DH7BZ (ex DC7BZ) in german
    [ Hits: 3525 | Votes: 1 | Rating: 1.00 ]
  • 80/75 Meter 4-Square Array - This array has been in use since 1989. The SWR from 3.5 to 3.9 is below 1.5:1. The F/R of the array is 20dB average and with some signals even better.
    [ Hits: 2200 | Votes: 1 | Rating: 10.00 ]
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: 3101 | 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: 4882 | 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: 147 | 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: 573 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Amplifiers : HF Amplifiers
  • 4-1000A Project HF Amplifier - An 80-10 meter band switchable HF amp using a 4-1000A
    [ Hits: 5333 | Votes: 4 | Rating: 3.75 ]
  • N4IP HF and 6 Meters amplifier - A solid state amplifier for HF and 6 meters band by N4IP
    [ Hits: 9662 | Votes: 4 | Rating: 10.00 ]
  • VE6FI 4-1000a amplifier - 15-160 meters HF power amplifier
    [ Hits: 3071 | Votes: 3 | Rating: 9.00 ]
  • 11 KW Linear amplifier by I0JX - 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: 22570 | Votes: 24 | Rating: 7.71 ]
Technical Reference : Amplifiers : VHF Amplifiers Technical Reference : Preamplifiers Technical Reference : SWR Meters
  • Digital QRP SWR & Power meter - A KD1JV Melt solder kit, a swr and power meter operating from 160 to 6 meters ideal for portable and field use
    [ Hits: 4582 | Votes: 4 | Rating: 1.75 ]
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: 2080 | Votes: 1 | Rating: 1.00 ]
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