coax antenna

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coax antenna

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Antennas : 15M
  • 21 mhz half wave GP Antenna - 21 mhz half wave ant -very low radiation angle - full size and light weight- all coax matching system - decoupling care to prevent low angle radiation degrade
    [ Hits: 3101 | Votes: 6 | Rating: 2.17 ]
Antennas : 20M : 20 meter Vertical Antennas
  • Vertical antenna for 20-15-10 m - This is a vertical multiband antenna made up of several aerial elements lambda/4 length, feeded with just a coaxial cable in French.
    [ Hits: 23539 | Votes: 20 | Rating: 5.2 ]
Antennas : 30M Antennas : 40M
  • 40 Meter coaxial antenna - An antenna for 40 meter band made entirely of coaxial cable either RG58 or RG59 Au.
    [ Hits: 5219 | Votes: 4 | Rating: 4.25 ]
Antennas : 4M Antennas : Baluns : 1 to 1 Balun
  • A Cost Effective Current-mode 1:1 Balun - A cost effective current-mode 1:1 balun can be constructed from a length of coax and a rod typically used for a broadcast antenna loop-stick, some electrical tape, cable ties, a length of PVC water-pipe and some connectors.
    [ Hits: 9190 | Votes: 4 | Rating: 7.25 ]
Antennas : Bazooka
  • Coax Dipole Calculator - An efficient program to calculate dimensions of coax dipoles, or bazooka antennas considering velocity length of different coax cables. Express dimensions in feet/inch and meters/cm. Freeware by VE3SQB
    [ Hits: 17563 | Votes: 74 | Rating: 5.31 ]
Antennas : Dipole
  • Wire antenna with coaxial cable traps  updated - 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: 9250 | Votes: 3 | Rating: 7 ]
Antennas : Feed Lines
  • ERP Estimator - Calculate online, ERP in dB and dBi given PWR Frequency Coax lenght and type and antenna type
    [ Hits: 1665 | Votes: 5 | Rating: 3.8 ]
Antennas : Loop Antennas : Satellite
  • Types of Coax in Satellite operations - Coax is a very important part of a satellite station. It is almost as important as the antennas you choose. This article discusses choosing coaxial cables for satellite communication, emphasizing factors like line loss. It compares types such as RG-8, RG-58, Belden 9913/9913F, LMR-400, and hardline, highlighting their impact on signal preservation.
    [ Hits: 2395 | Votes: 1 | Rating: 9 ]
Antennas : Traps
  • 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: 10266 | Votes: 5 | Rating: 8.2 ]
  • CoaxTrap - This program let you design of antenna trap using length of coaxial line wound as solenoid on a coil former.
    [ Hits: 5520 | Votes: 10 | Rating: 3.7 ]
Antennas : VHF UHF Antennas : Vertical
  • Coax Monopole antenna - OE1MWW monopole antenna made with common RG 58 or RG 213 coaxial cable
    [ Hits: 3508 | Votes: 3 | Rating: 6.67 ]
Antennas : Windom
  • The FD4 (FD3) Windom Antenna  pop - The 4-band Fritzel model FD4 is a special version of a Windom antenna. It is a half-wave long on the lowest frequency, and is fed from a coax cable through a transformer inserted in the wire at one-third from one end
    [ Hits: 53296 | Votes: 95 | Rating: 5.42 ]
  • The Windom Antenna - Eight Bands On One Coax by kh2d
    [ Hits: 5961 | Votes: 4 | Rating: 5.25 ]
  • Windom Antenna with 4:1 balun - The Windom is an Off-center wire multiband Antenna. The old version was fed just by a single-wire connected on 1/3 of antenna's overall length or with an open-line feeder (later versions). Here is another model with coaxial feeder, which is compatible with Solid States - 50 Ohm output transceivers .
    [ Hits: 8024 | Votes: 9 | Rating: 6.89 ]
Shopping and Services : Cables and Connectors
  • Rocky Mountain Radio - Provide RF connectors, adaptors, antennas, accessories, mounts, coax, West Mountain Radio Products and Anderson Power Products available.
    [ Hits: 386 | Votes: 1 | Rating: 10 ]
Technical Reference : Antenna Switch
  • A Coax Switch - An inexpensive coax switch. shows a proven inexpensive home-made antenna selection switch. If you question the use of a cheap slide switch and SO239 coax sockets, read on. Measurements in a physics lab showed there to be practically no reflection on HF and even on 70 cm the SWR was below 1.3 : 1
    [ Hits: 9674 | Votes: 8 | Rating: 7.5 ]

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