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Antena yagi 2 metros
The antenna uses a impedance matching for the SWR calibration, we need a PL chassis in which we connect the flow rate and the coaxial to the radio
post 13 Feb 2024
Antenna for UHF VHF Links →
Building a 440mhz quagi antenna
The Quagi requires neither fine tuning nor careful handling
Las antenas Moxon
Regarding the polarization of this antenna, what is said for the Turnstile is valid, since the circular polarization is obtained in the same way,the impedance adaptation is also similar
Lowcost yagi antenna for PMR446, easy to build
PMR446 stands for Personal Mobile Radio and is a license free radio in the 446 MHz UHF band. That is about 6 Mhz above the 70cm amateur radio band
Small Wideband Yagi
This small Yagi has 5.2 – 7.2 dBd forward gain with all backlobes more than 20 dB down across the FM broadcast band
Jpole for 440 mhz
155
The Quagi requires neither fine tuning nor careful handling
Regarding the polarization of this antenna, what is said for the Turnstile is valid, since the circular polarization is obtained in the same way,the impedance adaptation is also similar
PMR446 stands for Personal Mobile Radio and is a license free radio in the 446 MHz UHF band. That is about 6 Mhz above the 70cm amateur radio band
This small Yagi has 5.2 – 7.2 dBd forward gain with all backlobes more than 20 dB down across the FM broadcast band
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