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Magnet loop for 80M - 40M
Planned Hinge-Capacitor, Remote Control via Motor-driven Excenter, Plates 25x25cm, Spacing at 80m = 625 cm2/128pF = 4.88mm,Spacing at 40m = 625cm2/14pF = 44.64mm
post 27 Apr 2024
Antenna Loop Links →
Q- Multiplying Loop Antenna
This circuit is designed to be used in conjunction with the standard 4 foot square loop used in MW for long distance reception
Receive Loop Preamplifier
My idea is not to tune the loop, but simply transform the complex impedance
Receiving loop aerials for 1.8 MHz
Localised noise in the receiver can be reduced by using a small loop aerial. Shielded coax loops, unshielded loops and ferrite rod loops for 1.8 Mhz
Receiving Loop theory
Multi turn wire loops are often used as low frequency receiving antennas. Applications such as geophysical research, oil exploration and survivable
Short Loop
The losses are not taken into account when calculating the values. Losses increase the bandwidth, but increasing the bandwidth in this way is total nonsense because the efficiency drops.
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This circuit is designed to be used in conjunction with the standard 4 foot square loop used in MW for long distance reception
My idea is not to tune the loop, but simply transform the complex impedance
Localised noise in the receiver can be reduced by using a small loop aerial. Shielded coax loops, unshielded loops and ferrite rod loops for 1.8 Mhz
Multi turn wire loops are often used as low frequency receiving antennas. Applications such as geophysical research, oil exploration and survivable
The losses are not taken into account when calculating the values. Losses increase the bandwidth, but increasing the bandwidth in this way is total nonsense because the efficiency drops.
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