wire ant fo 40

wire ant fo 40

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• Helically wound antenna for 40m - A helically wound vertical antenna experiment. 14 meter of wire wounded on a 8 meter fishing pole with 4 elevated radials
  [ Hits: 539 | Votes: 2 | Rating: 9 ]
• A comparison of 40 meter beam antennas - This page describes a comparison study on seven different beam antennas for 40 meters band. Yagi antennas, moxon antennas, mini horse all antennas are described with schema diagram , azimuth plot and SWR F/B Gain diagram
  [ Hits: 267 | Votes: 0 | Rating: 0 ]

• Delta Loop for 40 and 20 meter Band by UR0GT - This wire antenna for 40 and 20 meter band feature a good SWR. Horizontal side of the antenna is placed at two meters above the ground. Impedance of the antenna are depending by the height of the base from the ground and conditions of the ground
  [ Hits: 536 | Votes: 5 | Rating: 7.8 ]

• 40m Linear-Loaded Dipole - A short dipole wire antenna for 40 meters band. It is a folded dipole that do not make use of coils and can be used either in horizontal or inverted V configuration
  [ Hits: 1507 | Votes: 3 | Rating: 8.67 ]
• Linear Loaded 40m Dipole - Dipole for 40m band. It is a simple linear loaded dipole feeded with 450-Ohm openwire feedline. Designed it for resonance at 7.050 MHz, can be tuned on 30m and 80m bands with an external antenna tuner. Build with simple electrical copper wire (2.5 mmq/13 awg) and two fishing poles with size of about 7 m/23 ft.
  [ Hits: 162 | Votes: 0 | Rating: 0 ]
• 40-80 Coax Trap Dipole - Full article on how to build a home-made wire dipole antenna for 40 and 80 meters band. Article is fully in italian, as it was published on ARI RadioRivista, but is plenty of self explaining pictures that will guide you on homebrewing this trapped dipole antenna for the lower amateur radio bands.
  [ Hits: 265 | Votes: 3 | Rating: 9.33 ]

• 40m Vertical End-Fed Antenna - A quarter wave vertical end-fed antenna for the 40 meters band. As all vertical antennas, also this aerial requires a good earthing system. In this project the ground is composed by twelve 4, wires buried in the lawn by using a spade to create a slit to drop the wire into.
  [ Hits: 2692 | Votes: 7 | Rating: 5.43 ]

• Shortened 80m Antenna - An antenna for 80 meters band for those who does not have enough space to setup a halwave wire dipole that is aprox 130ft or 40 meters. The antenna is an open-wire-fed shortened dipole
  [ Hits: 421 | Votes: 1 | Rating: 1 ]

• 50:450 Ohm (9:1) Balun for vertical antennas - A page describing how to home made a custom 9:1 balun for a common portable wire antenna. The author suggest to use 4C65 or FT140-61 toroids instead of the common Amidon T200-2
  [ Hits: 516 | Votes: 11 | Rating: 6.72 ]

• Microvert Antenna for 40m by ON7IR - A mircovert antenna assembled for the 40m version of the DL7PE antenna. A one meter long aluminum tube with 24mm diameter is used for the base (element 1) and a 50cm aluminum tube with 20mm diameter for element 2 (the extention). A pvc pipe, 34cm long and with a diameter of 38mm, is used to wind the coil on (1mm enamelled copper wire).
  [ Hits: 152 | Votes: 0 | Rating: 0 ]

• The 40/30 Pyramid - A dual band delta loop antenna resonating on 30 and 40 meters band using a single wire for the top slopers on both 30 and 40 meters and does not need any balun
  [ Hits: 704 | Votes: 0 | Rating: 0 ]

• Multiband Dipole for 40 30 17 m - A portable home made wire dipole antenna that works on 40 30 and 17 meters band.
  [ Hits: 312 | Votes: 0 | Rating: 0 ]

• The Pop-Up Vertical 2.0 - Basically, this antenna is a 23-foot wire fed through a 4:1 un-un transformer. This antenna can be easily used in portable operation, for operating all bands from 40-10 meters.
  [ Hits: 254 | Votes: 0 | Rating: 0 ]

• End Fed Half-Wave Antennas - An interesting article on end fed half-wave wire antennas with a couple of original experiments. Author illustrate the role of the QRP matchbox, and a 40/20 meter antenna with a center stub making it a large bandwidth antenna for 40 and 20. Includes also an 80/40 end fed with the typical coil to make it available on 80 merts band.
  [ Hits: 288 | Votes: 2 | Rating: 10 ]
• Speaker Wire EFHW Antennas 20m/ 40m - Author experiments end fed half wave antennas using common two conductore speaker wire, this article features a couple of end-fed halfwave wires for the 40M and 20M bands.
  [ Hits: 262 | Votes: 1 | Rating: 9 ]

• 40m Loop Antenna - This project is a full wavelength, horizontal, loop antenna for the 40 metre Amateur Radio band, built using insulated copper wire in a diamond shape, supported by egg insulators, tethered to 4 masts, each 6.5m high
  [ Hits: 193 | Votes: 0 | Rating: 0 ]

• Short Antenna for 40-30-20 Meters Band - This page describes an entirely simple, One-Knob matchbox that will match this antenna efficiently on 40, 30 and 20m, using a simple circuit that can be switched between series-resonant and parallel-resonant with just one banana jumper
  [ Hits: 238 | Votes: 1 | Rating: 7 ]

• A 40m-10m vertical antenna with elevated radials - A multiband vertical antenna for HF bands with elevated ground radials slant down at 45 degrees and acting also as guy wires.
  [ Hits: 547 | Votes: 1 | Rating: 6 ]
• 40m center loaded vertical antenna - A 5 metre center loaded vertical for 40m combined with a 4 wire ground plane.
  [ Hits: 297 | Votes: 0 | Rating: 0 ]

• Cobra Antenna - A folded dipole - A wire dipole antenna for the 80 and 40 meters band obtained by folding elements of a dipole and feeding with a 1:4 balun.
  [ Hits: 1053 | Votes: 5 | Rating: 6.8 ]

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