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Super J-Pole
The super J-pole is a regular J-pole antenna with a 1/2 wave element mounted above with a 1/2 wave phasing harness connecting the element to the bottom part of the J-pole. The antenna can be built for any band, but I built mine for 2 meters
post 08 Mar 2024
Antenna Collinear Links →
Collinear Microstrip Patch Antenna
First, let's sharpen the meaning of the following three expressions in microstrip patch antenna MPA technology: radiator, patch, motif
Antenna collineare 144 MHz e 70 cm
Antenna collineare 144 MHz, ridimensionata sui 70 cm
Home-brew Compact 6dBi Collinear Antenna
collinear 360 degrees omni-directional, vertically polarised, antenna for 802.11b/g wireless networking
VHF 8db collinear
started to build the antenna by cutting four lengths of wire, the measurement is 38.75ins for a half wave 145mhz but I cut them at 39.75ins to compensate for the joints
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First, let's sharpen the meaning of the following three expressions in microstrip patch antenna MPA technology: radiator, patch, motif
Antenna collineare 144 MHz, ridimensionata sui 70 cm
collinear 360 degrees omni-directional, vertically polarised, antenna for 802.11b/g wireless networking
started to build the antenna by cutting four lengths of wire, the measurement is 38.75ins for a half wave 145mhz but I cut them at 39.75ins to compensate for the joints
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
Build a Three-Way Antenna Switch and Displa To use a wireless relay to select one of two high current capacity power relays
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 factor