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Experience with Loop Antennas for LF and VLF at
The antenna is about 30 metres from the shack and at the highest point of the garden. The loop was wound with 36 turns and centre tapped. The inductance was found to be about 3 mH. 30 metres of RG58CU has a capacitance of about 3000 pF
post 12 Jun 2024
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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 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
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.
23cm Yagi Antenna building Finished antenna at 1275 MHz SWR under 1:1.5 at resonant frequency
50 MHz preamp Gain 26dB with the BFG135 Preamps for 144 and 430 MHz, for 50 MHz, the BFG135a is a cheap transistor and in my view rather strong. It is not easily damaged by static discharge or RF power. FG connection
Voice Recorder Gestito dall'integrato in questione ed offre la possibilità di registrare più messaggi per una durata massima di un minuto con buona fedeltà di riproduzione