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Arrays of K9AY Loops RX Antenna Solutions
With the low bands benefitting from the current sunspot minimum, receive antennas are important forDXers
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Invisible DX Antenna for the Low Bands
This paper describes a multi-band DX antenna for the 160m-40m amateur radio bands
Dual-Flag Receive Antenna
The antenna is made up of two rectangles 30-feet long by 20-feet tall
Un'antenna in ferrite per 40/80 metri
The simple simple design includes two BFX89, one potentiometer and a variable air condenser, plus a handful of resistors and capacitors
An active passive for rtl-sdr up converter
Receiving antenna for lf/mf/hf as well a passive transmission and reception antenna for vhf/uhf
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This paper describes a multi-band DX antenna for the 160m-40m amateur radio bands
The antenna is made up of two rectangles 30-feet long by 20-feet tall
The simple simple design includes two BFX89, one potentiometer and a variable air condenser, plus a handful of resistors and capacitors
Receiving antenna for lf/mf/hf as well a passive transmission and reception antenna for vhf/uhf
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