z antenna

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z antenna

1740 links - and 16 categories

Antennas : 10M
  • DK7ZB-5-Band-Quad - 2 element Quand antenna for 10 - 12 - 15 -17 - 20 meters band
    [ Hits: 10361 | Votes: 10 | Rating: 7.61 ]
Antennas : 2M Antennas : 6M
  • Loop Antenna for 50 MHz - A magnetic loop antenna using a 28\" bicycle rim for six meter band
    [ Hits: 1307 | Votes: 3 | Rating: 1.33 ]
Antennas : 80M
  • 80M Vertical antenna with capacitance hat  pop - Simple wire antenna cheap to make, using readily available materials, Low angle radiation, with rejection of high angle signals Wide bandwidth, with resonance at the 80M DX window (3.790-3.800 MHz); and Maximum height is 40 feet
    [ Hits: 23745 | Votes: 23 | Rating: 7.05 ]
Antennas : Bazooka
  • The Double Bazooka Antenna - The Double Bazooka Dipole is a very efficient single band antenna which is very quite, and does not require the use of a balun. This antenna consists of coax (RG58) or other 50 ohm type with the shield split at the center and the feedline attached to the open ends
    [ Hits: 7857 | Votes: 4 | Rating: 8.25 ]
Antennas : EH Antennas : End-Fed : End Fed Half Wave Antenna
  • End-Fed Halfwave Antenna  pop - The end-fed halfwave antenna is a resonant half wavelength long antenna like a dipole antenna except for it is fed at its end rather then in the center. This antenna is as old as radio and is probably best known as the Zepp Antenna
    [ Hits: 23381 | Votes: 16 | Rating: 7.49 ]
Antennas : HB9CV
  • Swiss Quad for 10 and 6 meters  pop - Based on HB9CV, F6ITV decribes how build a swiss quand antenna for 28 and 50 Mhz.
    [ Hits: 19826 | Votes: 21 | Rating: 7.38 ]
Antennas : Helical
  • 900 MHz Helical Antenna - Photos and description of a homebrewed 900 Mhz antenna
    [ Hits: 3535 | Votes: 13 | Rating: 4.77 ]
Antennas : Theory
  • Antenna Modeling Files - A collections of antenna models submitted to arrl and can be used with NEC-4 or Yagi Optimizer modeling programs
    [ Hits: 2391 | Votes: 5 | Rating: 5.80 ]
Antennas : VHF UHF
  • 802.11b Antenna on the Cheap - Build a 802.11b antenna using PVC, some cheap copper tubing, a Pringles can, and some scrap cardboard, in a few hours. Tests state a 12db gain on 2.4 Ghz
    [ Hits: 3024 | Votes: 0 | Rating: 0.00 ]
Antennas : W3EDP
  • Field-Deployable Antennas - Resonant dipoles, the W3EDP and end-fed wires, the extended double zepp, non-resonant doublets, and the "Zip-Cord Special" , the W6MMA vertical.
    [ Hits: 7015 | Votes: 3 | Rating: 7.00 ]
Manufacturers : Antennas
  • ITELITE Antennas - ITELITE manufactures omnidirectional, sector and directional antennas 900 MHz 2.4 GHz 3.5 GHz 5 GHz 5.8 GHz antennas.
    [ Hits: 689 | Votes: 6 | Rating: 7.00 ]
Manufacturers : Antennas : HF : Vertical Antennas
  • KVK Antenna Systems - The manufacturer of the NuBeam, Vipole, and the multi-band Quad-Folded-Dipole (or QFD for short) antenna. Also have a unique multiband vertical which can combine operation on multiple HF frequencies as well as provide high gain on 50, 144 and 438MHz in a single antenna.
    [ Hits: 3656 | Votes: 1 | Rating: 1.00 ]
Manufacturers : Antennas : VHF UHF Microwave
  • BAZ Spezialantennen - German antenna manufacturer for VHF UHF antennas, Quad-antennas, yagi-Antenna, LPDA-Antenna, W-Lan Antennas.
    [ Hits: 1501 | Votes: 10 | Rating: 8.00 ]
Operating Modes : Radio Direction Finding
  • A low power 3.5MHz ARDF transmitter - This low power transmitter is developed for ARDF exercising purposes but of course can be used as super QRP transmitter either. With 1 or 2 meter wire as antenna and a ARDF receiver with ferrite-rod antenna the range is about 100m but with better antennas and a 'real' receiver the range is probably much larger.
    [ Hits: 1781 | Votes: 3 | Rating: 5.33 ]
Software : Antenna analysis
  • HamCalc v1.3  pop - HamCalc is a free collection of calculators for radio amateurs include Antenna ERP calculations, Attenuators, Audio Filter design, Coil Winding, Decibels, Great Circles map and calculator, HF Filters, HF Traps, Metric conversions OP Amps QRA Locator to Latitude/Longitude, Radio Horizon calculator, Resonance Satellite orbit calculator Timer calculations (555 timer)Zener Diode calculations Download zip By G4VWL
    [ Hits: 24288 | Votes: 87 | Rating: 5.26 ]
  • XLZIZL by AC6LA - XLZIZL is an Excel application that analyzes the components of an antenna feed system, including transmission lines, stubs, baluns, and tuners. Calculations include impedance transforms, SWR and reflection coefficient, power loss, voltage and current standing waves, stress on tuner components, network attenuation (S21), and return loss Analysis results are available in worksheet format and in five different chart formats, including Smith charts.
    [ Hits: 1373 | Votes: 2 | Rating: 1.50 ]
Technical Reference : Test Equipment
  • Rainbow Antenna Analyzer - A small and inexpensive measurement device designed to determine antenna performance across the amateur bands through use of automatically collected SWR readings
    [ Hits: 6272 | Votes: 6 | Rating: 6.33 ]
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