Hits
End fed half wave antenna
A single wire,cut at 1\2 wavelength of the desired frequency,fed at one end,therefore without center isolators and coax cable to make it heavy and bulky
post 30 Apr 2024
Antenna End Fed Links →
Multi band end-fed
The antenna is very effective / efficient, it can be mounted as vertical, horizontal or as a sloper, it is low on QRM / QRN, it does not cause any RFI in the cabin, it is very practical to assemble
Realizzazione della EFHWA
E' un semplice L Tuner che adatta l'impedenza dai 50 ohm del RTX ai 2450 dell' End Feed Half Wave Antenna
Remote loading unit for a 160 end fed antenna
I have made three of these remote loading units, two currently in use. . The supply to the motor is via the coax feeder
The end fed wire antenna
A simple matching unit is needed to couple the wire to the rig and a counterpoise is required for some bands
64
The antenna is very effective / efficient, it can be mounted as vertical, horizontal or as a sloper, it is low on QRM / QRN, it does not cause any RFI in the cabin, it is very practical to assemble
E' un semplice L Tuner che adatta l'impedenza dai 50 ohm del RTX ai 2450 dell' End Feed Half Wave Antenna
I have made three of these remote loading units, two currently in use. . The supply to the motor is via the coax feeder
A simple matching unit is needed to couple the wire to the rig and a counterpoise is required for some bands
Take off angle of horizontal antenna For horizontal polarization, the electric field will move sideways on a horizontal plane, while for vertical polarization it will oscillate up and down on a vertical plane
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
Calculo da Antena Bazooka A double bazooka antenna is a combination that has a complete coaxial wave multiplied by its velocity factor and a total end-to-end length of 1/4 wave for each side affected by another driver shortening facto