Hits
Tuning Antenna Traps
A tuneable power adjustable transmitter and either an swr meter and a decent 50 ohm resistor
post 29 Mar 2024
Coils Traps Antennas Links →
Simple Building and Tuning of Traps
Traps are useful for multiband operating of all kinds of antennas
Set-up di misura per tappole
The multiband short balcony dipole is finished. It's 2 meters long, has large capacity hats, requires no ground plane, and can be tuned, by tapping coils, for perfect SWR on 40m, 30m, and 20m
Some hints/tips on how to assemble nice COAX TRAPS
Coax traps are cheap, easy to assemble in a reproducible manner, very rugged, perfect for portable or permanent operation, on dipoles, inverted-V's etc
Build a 12/17 Meter Trap Dipole
Why a 12/17 meter rotatable dipole? Well, many folks have verticals for the lower bands, and multiband dipoles or beams for 20 15 and 10 meters.But often you don't have an antenna for the 17 and 12 meter bands
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Traps are useful for multiband operating of all kinds of antennas
The multiband short balcony dipole is finished. It's 2 meters long, has large capacity hats, requires no ground plane, and can be tuned, by tapping coils, for perfect SWR on 40m, 30m, and 20m
Coax traps are cheap, easy to assemble in a reproducible manner, very rugged, perfect for portable or permanent operation, on dipoles, inverted-V's etc
Why a 12/17 meter rotatable dipole? Well, many folks have verticals for the lower bands, and multiband dipoles or beams for 20 15 and 10 meters.But often you don't have an antenna for the 17 and 12 meter bands
Linear loaded short dipole 21Mhz For my amateur radio activities on the HF bands I only have a 3.6 m wide balcony available for antennas. After some study I decided to experiment with a shortened dipole for the 15 m band
Rx antennas 4Square Rx Vertical Array My frequency design of 1.825 MHz a 90 degrees line would be 33,70 metersinstead of the previously calculated 33,27 m
A simple SWR Meter is to be used at HF An SWR meter provides information about how well matched is your antenna with the transmitter and how well power is being radiated