as j pole

as j pole

Pages: [prev] 1 2 3 4 5 6 7 8 9 10 [next]

• 160m Vertical antenna - A vertical antenna for the top band, made with a 26m fiberglass spiderpole by DJ0IP
  [ Hits: 2949 | Votes: 2 | Rating: 7.5 ]

• VHF Coax Dipole - A simple coax dipole antenna for 144 MHz by 9A7PJT
  [ Hits: 1285 | Votes: 2 | Rating: 2 ]

• Shortened Dipole for 40m - A shortened 7 MHz Dipole antenna as described by Ken GM4JMU in Sprat 74.
  [ Hits: 2351 | Votes: 10 | Rating: 7.5 ]
• Postage Stamp 40 Meter Wire Dipole Antenna - Build yourself a postage stamp 40 meter wire dipole antenna that fits in a space a little over 20 wide and works reasonably well at low heights
  [ Hits: 2771 | Votes: 5 | Rating: 6.5 ]

• 40m vertical antenna - A simple quarter-wave length vertical for 40m band using a 12 m spiderpole
  [ Hits: 2033 | Votes: 1 | Rating: 7 ]

• A Coax dipole for 4 m - This center-fed coaxial dipole for 4 mters feature low-cost components, Easy to set-up - nothing to adjust and no metalwork required, with only four soldered joints
  [ Hits: 553 | Votes: 1 | Rating: 10 ]

• Resonant Feedline Dipole - Experiences with the end-fed dipole based on the concepts presented by J. Taylor in an article titled RFD-1 and RFD-2: Resonant Feed-Line Dipoles in QST. August 1991.
  [ Hits: 736 | Votes: 1 | Rating: 3 ]

• End Fed Half Wave Antenna Coupler - Centre fed half wave dipoles make great, simple and effective antennas for the HF bands. Sometimes however, the centre feed is not ideal. This great project will improve the overall antenna performance.
  [ Hits: 1426 | Votes: 1 | Rating: 10 ]
• 20m Half-Wave End Fed - A Half wave antenna has a high impedance feed point. This can be matched using a 1/4 wave stub matching section and converts the 40m vertical into an L-shaped 20m J-Pole antenna. The 300 ohm feeder used for this purpose must be kept away from the ground.
  [ Hits: 1845 | Votes: 7 | Rating: 8 ]

• 20 thru 10 Meter Fan Dipole - The 20 thru 10 meter dipole is constructed from stranded insulated wire available in most hardware stores. The feedpoint uses an 8 inch long section of 2 inch diameter PVC pipe. A section of wire joins the elements at either side of the feedpoint to avoid the inductance of square knots used on lower frequencies.
  [ Hits: 3181 | Votes: 14 | Rating: 5.96 ]

• Helical Dipole for 40m - An helical dipole made with 10,7 meters of wire resonating on the 40 meters band, by PY1ZFK based on a project by DL8VO
  [ Hits: 1088 | Votes: 3 | Rating: 7 ]

• OSJ antenna for VHF and UHF - Working priciple of OSJ and jpole anntennas by PY4ZBZ
  [ Hits: 1987 | Votes: 13 | Rating: 4.54 ]
• 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 ]
• Tri-Band J-Pole - This strange looking antenna is a combination of Coupled-Resonator principle by K9AY and a quarter stubs to achieve low angle radiation pattern. Designed with 4nec2 NEC based antenna modeler and optimizer for 145/220/440MHz bands
  [ Hits: 1922 | Votes: 5 | Rating: 9 ]

• 17 meter Moxon Antenna project - A moxon antenna project made with wires and fiberglass poles
  [ Hits: 1056 | Votes: 0 | Rating: 0 ]

• HF Multiple Dipole Antenna - This article describes the design and simulation of a multiple dipole antenna for the HF band, using the software MMANA-GAL. The antenna will be designed to operate in the 10, 20, 40 and 80 m bands
  [ Hits: 820 | Votes: 1 | Rating: 4 ]

• OCF Dipole - This is a popular antenna design as the performance is very good across the HF bands and requires little or no tuning. It is a dipole fed off center with a 4:1 current balun at the offset feedpoint. The antenna shown covers 80, 40, 20 and 10 meters with 15 meters and WARC bands
  [ Hits: 2559 | Votes: 7 | Rating: 9.43 ]

• Slim Jim vs J-Pole - A comparative article on performance differences between Slim Jim antennas versus J-Pole antennas
  [ Hits: 856 | Votes: 2 | Rating: 10 ]

• VHF/UHF Antenna mounting - Mounting antenna close each other. Distance calculations and tips on setting up antennas by KB9VBR
  [ Hits: 749 | Votes: 2 | Rating: 4 ]

• Multiband HF Dipole - A 40 ft vertical dipole antenna that can cover HF Bands from 80 to 10 meters winding a dipole in a 12m HD telescoping fiberglass pole
  [ Hits: 3120 | Votes: 7 | Rating: 6.43 ]

Pages: [prev] 1 2 3 4 5 6 7 8 9 10 [next]