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Magnetique 27-28 MHz
The critical part on this type of antenna always remains the variable tuning capacitor which is located at the hot spot of the antenna, zone where the impedance is the highest and the developed voltage very important
post 01 Mar 2024
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160mt riceiving loop antennaTune C1/C3 until impedance at connector is resistive at 1830
80/160m Small Receiving LoopA small receiving loop helped; it has very deep nulls and made listening on 80 and 160 more pleasant
80m Frame AntennaCut the tubing into 900mm long pipes and drill 5 wire guides 3mm dia through it see drawing
A Crossed Field Loop Antenna for 3.5This antenna is the latest form of CrossedField Antenna.The electromagnetic wavesare created within the small FieldInteraction Zone around the two
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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
Atu balanced feeder antenna system An ATU has the advantage of bringing the feeder-antenna system to resonance, act as a band pass filter both on receive and transmit and a low SWR