l antennas

l antennas

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• Antennas for 160m - The best results work when you have an antenna with a large vertical component. It is difficult to get a horizontal antenna (dipole) high enough to be an effective antenna on 160. However, there are several easy things you can do with your present antenna to initially get on the best amateur radio band
  [ Hits: 1124 | Votes: 0 | Rating: 0 ]

• 2m Big Wheel Antenna - A Useful Horizontally Polarised Omni-directional Antenna with Gain for 144 MHz
  [ Hits: 1323 | Votes: 4 | Rating: 7.75 ]

• 40m Quagi Beam - A 7 MHz wire antenna that is a mix of a Quad and a Yagi design. This antennas are often used on VHF.
  [ Hits: 1060 | Votes: 4 | Rating: 7.75 ]

• Switchable MTFT for Wire-Antennas - A switchable Magnetic Transformer for Transmitting for various impedances
  [ Hits: 1216 | Votes: 89 | Rating: 7.98 ]

• 20 40 80 Trapped Dipole - An homemade portable trapped dipole antenna for 40 and 80 meters band with an optional extension for the 20 meters.
  [ Hits: 1403 | Votes: 9 | Rating: 5 ]

• 40 m Wire 4 Square Vertical Array - 40 meter four square vertical array using four full-size 40 meter ground plane antennas, using only two radials
  [ Hits: 1069 | Votes: 2 | Rating: 9 ]

• Broadcast Antennas on Buildings - When a broadcast antenna is to be placed on top of a building, there are special problems of feeding and grounding. The radiator is usually electrically short, that is, much less than one-quarter wavelength high.
  [ Hits: 358 | Votes: 2 | Rating: 10 ]

• 5 Band Telescopic Vertical Antenna - 5 Band 1/4 wave Telescopic Antenna. The 20m to 10m, antenna is simple and cheap to make, and has a performance that matches commercial antennas but at cost considerably lower. The design was purposely based on a telescoping fibre glass fishing rod as this allows it to be easily stowed away in the car.
  [ Hits: 3608 | Votes: 3 | Rating: 9.33 ]

• Asymmetrical Hatted Vertical Dipole - Theory and origins of W4RNL Asymmetrical Hatted Vertical Dipole AHVD for portable operations.
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• Overview on some SOTA portable antennas - A review of some portable antennas for SOTA operations, including linked dipoles, end-fed, verticals
  [ Hits: 686 | Votes: 1 | Rating: 4 ]
• Portable or Emergency VHF Antennas - Ground Plane - 1/4 wave vertical, J-Pole, 3 Element Yagi Beam and simple antenna supports
  [ Hits: 1010 | Votes: 1 | Rating: 8 ]

• Quarter Waves and Velocity Factor - Coax Velocity Factor in Baluns, Does it Matter? Test results show coaxial cable velocity factor does not always enter into stub length calculations especially in the world of Baluns
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• Balloon Vertical Omni-Antennas - Experimenting vertical wire antennas for 40 and 20 meters supported by balloons resulting in excellent gain in RX and good overall performance against horizontal dipole
  [ Hits: 771 | Votes: 1 | Rating: 5 ]

• W3EDP Antenna Notes - Hints for building a W3EDP-Antenna, includes the construction of the 1:4-balun by DK7ZB
  [ Hits: 931 | Votes: 3 | Rating: 9.33 ]

• Basic Wire Antennas Part II - Presentation about wire antennas, focusing on Loops , inverted L and Verticals
  [ Hits: 935 | Votes: 3 | Rating: 9 ]

• JK Antennas - US amateur radio antenna manufacturer, design and build monoband, dual band and multiband Yagi Antennas for HF bands as well as receive antenna systems
  [ Hits: 727 | Votes: 1 | Rating: 10 ]

• HF Antennas for Beginners - 30 Meters and Below - An interesting article for beginners that guide new hams to find what kind of antenna to install, evaluating wire aerials, commercial verticals and how to setup antennas in restricted lots
  [ Hits: 858 | Votes: 1 | Rating: 4 ]

• Fun and Games with the Spiderbeam 18 Meter Pole - A portable operation experience with a SpiderBeam pole during a contest, testing wire antennas, like dipole and delta loops configurations on 20 40 and 80 meters band.
  [ Hits: 313 | Votes: 1 | Rating: 10 ]

• DUAL - Antenna and ham equipment manufacturer in Serbia. The Dual company has been producing antennas for more than 25 years focusing on wide bandwidth, designs that work equally well in all weather conditions, very low SWR and superior G/T, F/B and F/S ratios
  [ Hits: 400 | Votes: 2 | Rating: 6 ]

• G Whip Antenna Products - British ham radio antenna products manufacturer, base and portable antennas, mobile antennas, baluns, masts, production is mostly based on wire and whip antennas
  [ Hits: 402 | Votes: 0 | Rating: 0 ]

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