4 meter

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4 meter

852 links - and 11 categories

Antennas : 10M Antennas : 15M
  • 4N1SM 5 elements yagi for 15 Meters - EF155A1 21 MHz monobander antenna by YU7EF
    [ Hits: 1699 | Votes: 2 | Rating: 7 ]
  • Monster Quads - N6LF tells us about his monster two-element 40-meter quad, with bonus three elements on 20 and 15 meters.
    [ Hits: 6373 | Votes: 0 | Rating: 0 ]
Antennas : 160M
  • Your First 160-Meter Antenna - Notes on building a basic wire vertical or horizontal antenna for 160 meters band by L. B. Cebik, W4RNL
    [ Hits: 6073 | Votes: 3 | Rating: 1 ]
  • A Potpourri of 160-Meter Verticals - A potpourri of 160-Meter vertical antennas and modeling issues, inverted-L, 3-element parasitic array, 1/4-wavelength monopole
    [ Hits: 3647 | Votes: 0 | Rating: 0 ]
Antennas : 30M
  • The flower pot antenna - A portable dual-band antenna working principally on 10 meters but also close to the 30 meter band. It's compact, light, economical and doesn't need any radial.
    [ Hits: 13403 | Votes: 1 | Rating: 10 ]
Antennas : 40M
  • W3HH antenna for 40 meters - Pictures and plan to build a wire W3HH antenna for 7 Mhz.
    [ Hits: 5021 | Votes: 11 | Rating: 7.45 ]
Antennas : 40M : 40 meter Magnetic Loop Antennas
  • Magnetic loop for 80-40 meters - Evolution of a project of a small magnetic loop resonating from 80 to 40 meters
    [ Hits: 5098 | Votes: 7 | Rating: 7 ]
Antennas : 6M : 6 meter Yagi Antennas
  • 4 el yagi for 50 Mhz - The EF0604S is a compact 4 elements yagi antenna plan for six meters band featuring 8.77 dBi gain and a front back gain of 17.89 dB. Article includes elements dimensions and spacing, along to pictures of some homebrewed examples.
    [ Hits: 3751 | Votes: 10 | Rating: 6.84 ]
Antennas : 80M
  • 80m Loop EZNEC Analysis - Antenna data, and design note for this horizontal loop antenna resonating on 80 Meters by K0ZE
    [ Hits: 3702 | Votes: 2 | Rating: 2 ]
  • 80 meters Short Dipole - The best antenna is the simple Dipole. If you have height, you even can put up a quarter wave vertical or an inverted, but sometimes you may need shorten version by 4S7NR
    [ Hits: 15827 | Votes: 9 | Rating: 3.33 ]
Antennas : CobWeb
  • CobWeb multiband folded dipole - The cobweb antenna it is basically a 5 band antenna comprising of 5 full half wave dipoles for each band - between 10 meters and 20 meters, the antenna is also resonant on 6M and can be modeled even for VHF frequencies.
    [ Hits: 8620 | Votes: 0 | Rating: 0 ]
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: 4839 | Votes: 8 | Rating: 8.25 ]
  • Wire antenna with coaxial cable traps - This multiband antenna 10-80 meters is a home made project by I1BAY. Has been used for SOTA activations with great results. Traps are done with coax cable turns, dimensions are in the attached schema.
    [ Hits: 9250 | Votes: 3 | Rating: 7 ]
Antennas : Indoor
  • Indoor multiband dipole - This indoor dipole is available in two version for 20-10 meters and 40-10 meters. EZNEC data files available by HB9MTN
    [ Hits: 7085 | Votes: 5 | Rating: 7.2 ]
Antennas : Wire
  • Portable Wire Antenna - W4ZT used this antenna for Field Day and other portable applications. He built them for all bands between 160 meters and 6 meters. You can make them easily using whatever wire you have available and make the insulators from scrap plastic
    [ Hits: 1919 | Votes: 2 | Rating: 7 ]
Ham Radio : Clubs : North America : USA : California
  • Loma Pioneer Repeater Club - LPRC - The loma pioneer repeater club - lprc provides 2 meter vhf and 440 uhf amateur radio and emergency communication for the san francisco and monterey bay areas from a repeater on mt loma prieta. aprs digipeater available.
    [ Hits: 597 | Votes: 0 | Rating: 0 ]
Ham Radio : Clubs : North America : USA : Florida
  • N4EH Lake Monroe Amateur Radio Society - The Lake Monroe Amateur Radio Society serves Seminole County and Central Florida, operating two 2 meter repeaters on 147.285 +600 and on 146.805 -600
    [ Hits: 812 | Votes: 0 | Rating: 0 ]
Ham Radio : Clubs : North America : USA : Massachusetts Technical Reference : Amplifiers : HF Amplifiers
  • Homebrew HF Amp with 3CX3000F7 - Grounded grid triode HF linear amplifier with pictures and schematics diagrams by W2DTC. The amp design was for 160 80 40 and 20 meters
    [ Hits: 3274 | Votes: 9 | Rating: 6.33 ]

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