4 meter

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4 meter

813 links - and 9 categories

Antennas : 15M
  • Monster Quads - N6LF tells us about his monster two-element 40-meter quad, with bonus three elements on 20 and 15 meters.
    [ Hits: 5963 | Votes: 0 | Rating: 0.00 ]
  • HF Copper Loop for 20 and 15 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: 7264 | Votes: 1 | Rating: 5.00 ]
Antennas : 160M
  • An 80-160 magnetic loop antenna - A classic diamond shape loop antenna that works fine on 80 and 160 meters band. This loop design allow a few watts power only and include part list and construction details.
    [ Hits: 5109 | Votes: 2 | Rating: 1.00 ]
  • 160 Meter short TX loop antenna - Here is a successful 160 Meter short TX loop antenna 4 feet high, 3 feet wide, and 6 inches deep.
    [ Hits: 7528 | Votes: 4 | Rating: 5.25 ]
Antennas : 40M
  • Bazooka antenna for 40 meters - A bazooka antenna project for the 7 Mhz, includes dimension for to homebrew your own bazooka for HF bands
    [ Hits: 8058 | Votes: 11 | Rating: 6.90 ]
  • W3DZZ for 40 and 80 meter - Home made w3dzz antenna for 40 and 80 meters band
    [ Hits: 1973 | Votes: 4 | Rating: 4.00 ]
  • 40 meter 4-square antenna - A permanent working 40 meter system based on a 4-square antenna
    [ Hits: 7641 | Votes: 3 | Rating: 4.33 ]
  • NVI 40 Meter Antenna Modeling - The idea of using a low mount dipole, enhanced with reflector wires directly beneath the dipole, on the ground, appears to be a very good approach to creating an NVI specific antenna for local HF operation.
    [ Hits: 2822 | Votes: 0 | Rating: 0.00 ]
Antennas : 40M : 40 meter Dipole Antennas
  • PY6CJ 80/40 meters dipole - A center feed trapped dipole for 80 and 40 meter band in spanish
    [ Hits: 3369 | Votes: 2 | Rating: 5.50 ]
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: 3563 | Votes: 4 | Rating: 6.25 ]
Antennas : 40M : 40 meter Vertical Antennas
  • The Hudson antenna - A vertical antenna for 80 and 40 meters project with lots of assembling pictures and plan by LU9DPD in spanish
    [ Hits: 2588 | Votes: 1 | Rating: 10.00 ]
  • Top loaded vertical - Vertical Antenna for 40m Band with elevated Radials Top Load is a Mesh 2 x 1 meter (Netz 2x1m) enamelled wire 0.5 mm diameter (CuL 0,5mm)
    [ Hits: 2173 | Votes: 1 | Rating: 1.00 ]
Antennas : 80M
  • 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: 14870 | Votes: 8 | Rating: 3.62 ]
  • K5LAD 80 meter antenna - A successful 80 meter antenna only 38 feet high on one end and 4 1/2 feet on the other
    [ Hits: 510 | Votes: 0 | Rating: 0.00 ]
  • Broad Band Dipole for 80m - Mesh constructed with enamelled wire 0.5 mm diameter For installing a support (plastic rope 2 mm) is needed. Antenna used on Solomon Isl in 1995 H44/DJ9RB
    [ Hits: 3770 | Votes: 1 | Rating: 1.00 ]
Antennas : Dipole
  • 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: 8990 | Votes: 2 | Rating: 5.50 ]
  • Portable dipole for 40 Meters band - Pictures and swr reports for a portable dipole antenna for 40 meters band in german
    [ Hits: 2994 | Votes: 0 | Rating: 0.00 ]
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: 6184 | Votes: 4 | Rating: 7.00 ]
Ham Radio : Clubs : North America : USA : Massachusetts Technical Reference : QRP Projects : QRP CW Transceiver
  • 40 meter QRP Transceiver - This semi-homebrew QRP (low power) CW transceiver is based on the ARK-40 transceiver kit, by S&S Engineering. With its built-in CW keyer and 5 watts of power, the basic ARK-40 transceiver is an outstanding 40 meter CW performer
    [ Hits: 8724 | Votes: 6 | Rating: 6.83 ]
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