antenna trap

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antenna trap

92 links - and 1 categories

Antennas : 10M
  • Petlowany Three-Band Burner Antenna - The Petlowany Three-Band Burner is a simple, low-cost, trapless short vertical antenna which amazingly works on three HF bands (20, 15 and 10 meters). This web page contains pictures, performance data, and enough construction details so you can homebrew your own.
    [ Hits: 6056 | Votes: 5 | Rating: 7.2 ]
  • Shortened dipole for 10 & 40m bands - A shorten Dual-Band Dipole with overall length of about 11 m. For this antenna traps are substituted by inductors, in order to cover the 10 & 40 m. Bands.
    [ Hits: 4137 | Votes: 1 | Rating: 1 ]
Antennas : 20M : 20 meter Dipole Antennas
  • 40/20 Trap Dipole - An easy to make trap dipole antenna for 40 and 20 meters
    [ Hits: 8051 | Votes: 10 | Rating: 5.77 ]
Antennas : 40M : 40 meter Dipole Antennas
  • Trapped dipole for 80 and 40 m - This article explores a theoretical model for the losses of an 80m / 40m trapped inverted V dipole antenna system using a bootstrap coax trap, but does not examine the pattern of the antenna.
    [ Hits: 2730 | Votes: 0 | Rating: 0 ]
Antennas : Antenna Calculators Antennas : Dipole
  • Wire antenna with coaxial cable traps - 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 ]
  • An Improved Multiband Trap Dipole Antenna - This improved multiband trap dipole introduces a new trap design and a change in trap location. The antenna features double-coaxial-cable-wound traps having lower reactance and a higher quality factor (Q) than earlier coax-cable traps by W8NX
    [ Hits: 8726 | Votes: 5 | Rating: 6 ]
Antennas : Multiband
  • 6-Band Windom antenna  pop - Theory and construction of a novel trapless center-loaded off-center-fed (cl-ocf) dipole or windom antenna for the 80, 40, 30, 20, 15 and 10m hf amateur radio bands
    [ Hits: 50562 | Votes: 45 | Rating: 6.82 ]
  • Offset multiband trapless antenna - Simple, easy to build, low cost, compact, multiband By Robert Wilson, AL7KK
    [ Hits: 2117 | Votes: 2 | Rating: 9 ]
  • Another vertical antenna for 30, 40 and 80 meters - This article is to describe a multi band DX-dedicated antenna offering a minimum of compromises (such as lossy traps), for the hams not having any high-support
    [ Hits: 4375 | Votes: 4 | Rating: 3.5 ]
Antennas : Traps
  • Multi Band Antenna Traps - These devices are called Traps, but they are actually more like frequency sensitive switches. They are parallel resonant, high Q, tuned circuits which provide a very high impedance at their frequency of resonance.
    [ Hits: 4850 | Votes: 3 | Rating: 6 ]
  • Trapped antennas - ARRL index of document about trapped antennas and notes on traps usage
    [ Hits: 2953 | Votes: 2 | Rating: 1 ]
  • TrapDip - This program let you design and performance of 2-band trapped dipole antennas including trap design.
    [ Hits: 4304 | Votes: 4 | Rating: 3.25 ]
  • CoaxTrap - This program let you design of antenna trap using length of coaxial line wound as solenoid on a coil former.
    [ Hits: 5521 | Votes: 10 | Rating: 3.7 ]
  • PA3HMP Antenna Traps - An original way to build antenna traps
    [ Hits: 4811 | Votes: 8 | Rating: 7.26 ]
Antennas : Vertical Antennas : W3DZZ
  • 7 Mhz traps for W3DZZ - Homebrewing traps for the W3DZZ wire dipole Antennas. Article in Dutch with some interesting pictures
    [ Hits: 15710 | Votes: 28 | Rating: 4.89 ]
  • W3DZZ multiband dipole - The multi-band trapped dipole is resonant on approx 3.7, 7, 14, 24 7 28.5 Mhz. The overall top length needs to be approximately 32.9 Meters
    [ Hits: 10465 | Votes: 20 | Rating: 6.9 ]
Radio Equipment : HF Vertical Antenna : Cushcraft R7
  • Troubleshooting Traps - This article refers mainly to the old Cushcraft 1/4 wavelength AV series of antennas (12AVQ, 14AVQ etc) hence the references to radials. The R series (R5, R7 etc) are 1/2 wavelength antennas, and the radials are NOT 1/4 wavelength resonant.
    [ Hits: 2775 | Votes: 0 | Rating: 0 ]
Shopping and Services : Antennas
  • Adur Communications - Specialist in the design and supply of Radio Communications Equipment and Systems. West Sussex England. Antennas, traps and baluns inline isolators, Outbacker Antennas, Mobile Mounts and Accessories
    [ Hits: 1029 | Votes: 0 | Rating: 0 ]

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