coaxial cable antenna

coaxial cable antenna

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• G3YXM Small Loop - This simple antenna is capable of remarkable results on 160, 80 and 40 metres. Forming a triangle from around 50 feet of satellite TV coaxial cable, the top of the triangle can be as low as 15 feet, and the lower side just high enough to prevent a passer by hanging themselves
  [ Hits: 3761 | Votes: 2 | Rating: 9 ]

• Squarooka Antenna - squared bazooka for 2 meters band - Sort of similar to the one of the 6m omni. Instead of using twin-lead, this design makes use of a more or less regular double bazooka antenna (coaxial dipole). Your attention shall be drawn to the available standart literature, such as Rothammel. In order to "compute" the dimension, Karl Rothammel mentioned that the total length of the dipole shall be 95% of the free-space wavelength. The short-circuit bridges (closing the folded dipole) are to be placed at a distance-fraction being equal to the velocity factor of the coax cable used, which will be 66% using RG-58 or RG174.
  [ Hits: 356 | Votes: 0 | Rating: 0 ]

• 40m Magnetic Loop Antenna - A coaxial cable tuneable magnetic loop antenna for 7MHz. This experimental antenna does not require a tuning capacitor
  [ Hits: 3591 | Votes: 4 | Rating: 8.75 ]

• Corned Fed Delta Loop - Author found a ratio between the lengths of the sides of the Delta Loop that give reasonably low SWR into a 50 ohm coaxial cable almost independent of the high above ground and other surroundings. This ratio also gives good results no matter orientation. Includes an online delta loop antenna calculator.
  [ Hits: 168 | Votes: 0 | Rating: 0 ]

• Magnetic longwire baluns 1:9 - This Magnetic Longwire Balun (MLB) makes it possible to efficiently use a coaxial lead-in cable with all forms of longwires, T-forms or other types of wire antennas, without the need for an antenna tuner.
  [ Hits: 3584 | Votes: 4 | Rating: 6.75 ]
• QRP Magnetic longwire balun with VHF-splitter - This Magnetic Longwire Balun (MLB) makes it possible to efficiently use a coaxial lead-in cable with all forms of longwires, T-forms or other types of wire antennas, without the need for an antenna tuner.
  [ Hits: 754 | Votes: 2 | Rating: 6 ]
• Build your own HF balun - A balun is a MUST for dipoles or similar antennas when they are feed with coaxial cables. Many hams connect the center conductor of the coaxial cable to one side of the dipole, and the shield to the other. Wrong!
  [ Hits: 1639 | Votes: 5 | Rating: 5 ]
• Build your own HF balun - A balun is a MUST for dipoles or similar antennas when they are feed with coaxial cable. From the RF point of view, the shield can be modeled as two conductors, the internal shield (the real shield, this is, ground) and the external shield, who is really far to be ground. In this way, your dipole has 3 arms, the two from the dipole and the coaxial cable shield (external face)
  [ Hits: 248 | Votes: 1 | Rating: 10 ]

• Coaxial feeder or RF coax cable - An overview of coax cable often called coaxial feeder or RF cable, used to feed antennas and deliver radio frequency power from one point to another
  [ Hits: 647 | Votes: 3 | Rating: 3.67 ]

• Trap on Coax Cable - A trap on the coaxial cable, also known as choke, helps to eliminate the sneaking of the reflected RF- energy to the shack. The trap can be made from the coaxial cable that feeds the antenna
  [ Hits: 964 | Votes: 2 | Rating: 6.5 ]

• 6 m JPole Antenna - Based on original G2BCX design this J-Pole antenna for the six meter band is made with a homemade ribbon cable. The antenna shown in this article includes a coaxial cable choke feed to remove RF currents from flowing on the outer of the cable.
  [ Hits: 1767 | Votes: 6 | Rating: 6 ]

• Archimedean Spiral Antenna for RTLSDR - Dodgy plans to make Archimedean spiral antenna for RTLSDR software defined radio receiver. Made of two equal lengths of coaxial cable seems to be the easiest circularly polarized antenna to make that will cover a broad range of the rtlsdr dongles E4000 tuners
  [ Hits: 1033 | Votes: 2 | Rating: 10 ]

• 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
  [ Hits: 208 | Votes: 0 | Rating: 0 ]

• FBK 2m-70cm dualband coax antenna - A travel, or a fixed vertical coax antenna originally designed by PA0FBK. This antenna is very easy to make from a piece of 50 ohm or 75 ohm coaxial cable, and can be either smooth, roll-up version, or rigid cable
  [ Hits: 354 | Votes: 3 | Rating: 9.33 ]

• 20-30m Vertical Antenna - Homebrew project for a vertical antenna with a coaxial-cable trap, that works on 20 and 30 meters band.
  [ Hits: 73 | Votes: 0 | Rating: 0 ]

• Benelec - Radio Communication Base Station, Marine, Cellular and Mobile antennas covering all bands between 2-6000MHz, Communication Accessories, Coaxial Cable, Coaxial Connectors and Accessories
  [ Hits: 916 | Votes: 2 | Rating: 6 ]

• Cmpter Electronics - Cmpter Electronics is specialized in designs and manufactures RF Coaxial Connectors, RF Adapters, Cable Assembly and GPS Antennas for applications in the datacom/telecom, automotive, instrumentation aerospace and defense markets.
  [ Hits: 408 | Votes: 52 | Rating: 9.34 ]
• AIR802 - Manufacturer of PL-259 and SO-239 and many other connector types for various cable sizes. Also manufacture various size coaxial cable and pre-made antenna cable assemblies and pigtails.
  [ Hits: 351 | Votes: 0 | Rating: 0 ]

• Volda Communication - Volda is specialized in telecom tower antenna line accessories such as cable hangers, coaxial jumpers, grounding buss bar kits, pole clamps.
  [ Hits: 64 | Votes: 0 | Rating: 0 ]

• American Radio Supply - American Radio Supply, LLC is a supplier of quality radio communication parts and wireless connectivity components including coaxial connectors, cables, antennas.
  [ Hits: 411 | Votes: 8 | Rating: 8.87 ]

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