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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
post 05 Dec 2024
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Magnetic Loop Antenna
Aligning the antenna is straightforward, first set the switch to the first band position 20metres and adjust the corresponding trimme
Magnetic loop antenne
Coaxial cable circumference 40 mm. These cables were 30 cm underground and have served as power cables for the VHF antenna for a long time
Magnetic Loop Antenna 30m, 20m, 17m, 15m, 12m, 10m Bands
A properly designed and constructed small loop of nominal 1m diameter will outperform any antenna type except a triband beam on the 10m/15m/20m bands
Magnetic loop double loop
Much has been published about magnetic antennas. Their performance on the air with a loop circumference shorter than 1/4 λ often belies their low theoretical efficiency
Magnetic Loop Antenna
The loop is 1.6m in diameter and uses 8 pieces of 15 mm copper pipe cut to 61cm long. It tunes from 20 through 80 meters
150
Aligning the antenna is straightforward, first set the switch to the first band position 20metres and adjust the corresponding trimme
Coaxial cable circumference 40 mm. These cables were 30 cm underground and have served as power cables for the VHF antenna for a long time
A properly designed and constructed small loop of nominal 1m diameter will outperform any antenna type except a triband beam on the 10m/15m/20m bands
Much has been published about magnetic antennas. Their performance on the air with a loop circumference shorter than 1/4 λ often belies their low theoretical efficiency
The loop is 1.6m in diameter and uses 8 pieces of 15 mm copper pipe cut to 61cm long. It tunes from 20 through 80 meters
PIC-Keyer This project describes the construction of a real "QRP" keyer with a small microcontroller PIC 16F84, with slightly modified hardware also PIC16F62
RF Inductance Calculator Mean diameter of the air core coil, measured from conductor centre to conductor centre include the wire insulation thickness, if any
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