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Grid Dip Pll
Si tratta di un VCO con escursione da 350 KHz a 150 MHz circa con le varie bobine
post 07 Mar 2024
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Variometer Loading Coils for LP AM operation
LPAM antennas are more difficult to construct than their LPFM cousins. Firstly, they have to be longer. Secondly, they have to be vertical to work well which becomes an issue if the antenna is longer) Thirdly, they need to have rather long ground radials for the same reason
Voice Keyer vacile da usare e da costruire
Decisi quindi di costruirne uno semplice
Yaesu FT-817 abilitazione alla trasmissione continua
Puo' essere modificata per abilitarla a trasmettere sull'intero spettro delle HF
The Skew-Planar Wheel Antenna
This antenna, constructed by VE3BYT, was built for the beacon VE3WCC on 903.370 MHz in Ottawa, Canada
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LPAM antennas are more difficult to construct than their LPFM cousins. Firstly, they have to be longer. Secondly, they have to be vertical to work well which becomes an issue if the antenna is longer) Thirdly, they need to have rather long ground radials for the same reason
Decisi quindi di costruirne uno semplice
Puo' essere modificata per abilitarla a trasmettere sull'intero spettro delle HF
This antenna, constructed by VE3BYT, was built for the beacon VE3WCC on 903.370 MHz in Ottawa, Canada
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