trap design

KK5BL How To Build A G5RV Antenna  ^pop - How to build a G5RV Transmitting antenna Originally posted to the packet bbs system by KC6CFF. The G5RV is an easy-to-build 80-10 dipole requiring no traps. All bands are covered, including 30, 17, and 12. The G5RV has high SWR, by design, on most bands and a tuner is required

Antenna Trap Calculator - Design your own antenna trap online

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

40/80 Trap Dipole Design - An home made trapped dipole antenna for 40 and 60 meters band by 2E0HTS

Coaxial Traps for multiband antennas - A new perspective on the analysis and design of this popular antenna element. By Karl-Otto Müller, DG1MFT

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.

TrapDip - This program let you design and performance of 2-band trapped dipole antennas including trap design.

CoaxTrap - This program let you design of antenna trap using length of coaxial line wound as solenoid on a coil former.

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

Video of a W3DZZ Trapped Antenna - Video construction of a multiband HF trapped dipole antenna based on a variation of the classic W3DZZ design

X7 Cushcraft at E73m - Cushcraft X7 antenna design is based on Log periodic-Yagi and has real advantage over conventional multiband trapped tribanders.

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

Antenna Maker  ^{updated  pop} - Antenna design program for Quads, Yagis, Inverted Vees, J-poles, Trap Dipoles and more.

HamCalc v1.3  ^pop - By G4VWL, HamCalc is collection of calculators for radio amateurs: 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 (and back) Radio Horizon calculator Resonance Satellite orbit calculator Timer calculations (555 timer)Zener Diode calculations

YPlog - YPLOG logging software for Windows support Icom and Kenwood Radios, map programs and a program for coaxial trap design.