eme antenna

eme antenna

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• 5 Elements 28 MHz Monobander - A 5 elements yagi antenna for 10 meters band project, plane and picture of the EF105A by YU7EF
  [ Hits: 4477 | Votes: 8 | Rating: 3.25 ]

• 4N1SM 5 elements yagi for 15 Meters - EF155A1 21 MHz monobander antenna by YU7EF
  [ Hits: 1700 | Votes: 2 | Rating: 7 ]

• 3 Element yagi for 17 meters band - 17 Meter 3 element TA33 junior mono band yagi antenna conversion project by K6TC
  [ Hits: 5973 | Votes: 2 | Rating: 5.5 ]

• Portable yagi antennas - A 3 and 5 element portable yagi antennas for 2 meter band
  [ Hits: 5147 | Votes: 3 | Rating: 5.67 ]
• ZR6KMD 2M Beam Antenna - This design was adapted from an article in the ARRL Handbook and built with simplicity and duplicity in mind. This antenna is a vast improvement over a standard dipole with a forward gain of around 8db with a front to back ratio of 10db.
  [ Hits: 2222 | Votes: 1 | Rating: 2 ]

• N4JTE Antennas - Just Too Easy 40 meter reversible quads in two an three element version
  [ Hits: 2664 | Votes: 4 | Rating: 7.75 ]

• 6 Meter 5/8 Wave Vertical Antenna - The G3JVL 6 Meter ground plane vertical is a compact antenna that is ideal for portable operations. If needed, it can be disassembled into a very small bundle no longer than the longest element.
  [ Hits: 18936 | Votes: 11 | Rating: 6.28 ]

• 3 element 50 Mhz Yagi - A 3 elements long yagi antenna for 6 meters band by ON6MU
  [ Hits: 12533 | Votes: 43 | Rating: 4.96 ]
• 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 ]

• Yagi for 80 and 40 meters - Design plan of an array of a two element yagis for 80m and a 3 element 40m antenna sharing a single 12 meters long boom by EA5DY
  [ Hits: 1735 | Votes: 4 | Rating: 6.5 ]

• Better Feedline Loss Measurements with Antenna Analyzers - Various publications through the years have shown how the SWR measured on a shorted (or open) feed line can be used to calculate feed line attenuation
  [ Hits: 1924 | Votes: 2 | Rating: 10 ]

• G5RV antenna - Review by G3TXQ and comparison to its modificated versions. SWR Measurements on inverted V setup and comparison from EZNEC model and a real one.
  [ Hits: 1843 | Votes: 3 | Rating: 4 ]

• Antenna Impedance measurement - When experimenting on an antenna it's often important to determine its feedpoint impedance at various frequencies across the operating band. It's easy enough to measure SWR, but sometimes we need to know more detail than this
  [ Hits: 1426 | Votes: 6 | Rating: 2.67 ]

• Super J-Pole for 435MHz - The Super J Pole antenna is a co-linear vertical consisting of a number of half wave length vertical elements separated with half-wave length stubs (Tuning stub) feed with a folded matching stub by vk6ysf
  [ Hits: 3370 | Votes: 6 | Rating: 5 ]

• Log Periodic Antenna Design  ^pop - calculates the dimensions and spacings of the elements needed to build a log periodic antenna, given tao, sigma and the lower and upper cutoff frequencies.
  [ Hits: 34835 | Votes: 295 | Rating: 6.04 ]

• 2 element wire Yagi - Hammock 2 element wire Yagi antenna for 3 bands 20-15-10 based on VE7CA project
  [ Hits: 6570 | Votes: 2 | Rating: 4.5 ]

• 8 Element Quagi Antenna for 70cm - Quagi 8el 70cm improved 13.77dBi by IK1HGE
  [ Hits: 3552 | Votes: 7 | Rating: 8.29 ]

• Building Coaxial Traps - This page describes the design and construction materials W8WWV used to build a coaxial cable trap. A coaxial cable trap is a parallel resonant circuit that is usually inserted in an antenna element to enable multiband operation.
  [ Hits: 10272 | Votes: 5 | Rating: 8.2 ]

• 4 element yagi for 20 meters - Pictures and plans of a 4 elements yagi beam antenna for 14 Mhz
  [ Hits: 13796 | Votes: 26 | Rating: 4.33 ]

• ICOM 746 Temperature Measurements - The ICOM 746-Pro has acquired a history of NEC 1678G (IC-151) MMIC and driver transistor 2SK2975 failures. The failure of IC-151 appears to be a combination of ESD damage from electrostatic charge on the antenna entering IC-151, and perhaps thermal heat.
  [ Hits: 2264 | Votes: 0 | Rating: 0 ]

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