Traps

Antenna traps

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Homebrew your own inductors - Can�t find the inductors you need for an antenna, a tuner or amplifier? Build your own�it�s easy! By Robert H. Johns, W3JIP
How antenna traps work - An interesting article about homebrewing antenna traps for multiband antennas by VE3GK
Coaxial Traps for multiband antennas - A new perspective on the analysis and design of this popular antenna element. By Karl-Otto M�ller, DG1MFT

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7 Mhz traps for W3DZZ
[Hits: 4127 | Votes: 12 | Rating: 5.08]
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: 1531 | Votes: 1 | Rating: 1.00]
Antenna Trap Calculator - Design your own antenna trap online
[Hits: 2585 | Votes: 11 | Rating: 5.18]
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: 3916 | Votes: 4 | Rating: 8.25]
Building traps with coax cable - Tips on how to build a trap using common coaxial cable and coax trap software, by F5JTZ in french
[Hits: 891 | Votes: 0 | Rating: 0.00]
Coaxial Traps for multiband antennas - A new perspective on the analysis and design of this popular antenna element. By Karl-Otto M�ller, DG1MFT
[Hits: 4649 | Votes: 2 | Rating: 5.50]
CoaxTrap - This program let you design of antenna trap using length of coaxial line wound as solenoid on a coil former.
[Hits: 2095 | Votes: 2 | Rating: 5.50]
Easy tuning an building of traps - A new and simple method for tuning traps. You need 2-3Watt of your TRX and two homemade coupling coils by DK7ZB
[Hits: 1315 | Votes: 1 | Rating: 5.00]
Homebrew your own inductors - Can�t find the inductors you need for an antenna, a tuner or amplifier? Build your own�it�s easy! By Robert H. Johns, W3JIP
[Hits: 10496 | Votes: 8 | Rating: 7.63]
How antenna traps work - An interesting article about homebrewing antenna traps for multiband antennas by VE3GK
[Hits: 4821 | Votes: 22 | Rating: 6.31]
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: 2007 | Votes: 3 | Rating: 6.00]
PA3HMP Antenna Traps - An original way to build antenna traps
[Hits: 1800 | Votes: 5 | Rating: 8.40]
To Trap or Not to Trap - An interesting article on traps, pros and cons of trapping by W4RNL
[Hits: 1533 | Votes: 0 | Rating: 0.00]
TrapDip - This program let you design and performance of 2-band trapped dipole antennas including trap design.
[Hits: 1755 | Votes: 3 | Rating: 4.00]
Trapped antennas - ARRL index of document about trapped antennas and notes on traps usage
[Hits: 1191 | Votes: 0 | Rating: 0.00]
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: 760 | Votes: 0 | Rating: 0.00]
VE6YP CoaxTrap - The Coax trap program computes design parameters for the construction of coaxial traps for HF usage. Typically these are constructed from PVC tube and RG58/59 coax
[Hits: 2532 | Votes: 12 | Rating: 7.25]

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