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Dual-Loop 80 - 40m

A very fine antenna that should ma.ke the lives of many hams much better by using a loop antenna instead of the inverted V's that so many of us use now
post 31 Mar 2024
Dual-Loop 80 - 40m

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Antenne cadre magnetique
CV equals 230 pf, gauge is at the end. The CV equals 230 of the 4mm blades

Comparison of active magnetic loop antennas
A nice thing about this antenna is, that it is quite small when disassembled. The loop is connected to the box, which houses the amplifier

Costruzione di un'antenna loop magnetica
Se si modifica il valore del condensatore col quale lavora e senza di questo non lavora allora la si puo' far lavorare in un range di frequenze accettabile

Compact VLF - LF air-core loop antenna
To hunt for utility signals on VLF and LF, a compact and portable loop antenna was built

Magnet Loop Antenna Calculator
The Magnet Loop Antenna Calculator Program is used to calculate Magnet Loop Antennas and the HF Loop Antenna

Linear-loaded-short-dipole-21mhz

Linear loaded short dipole 21Mhz For my amateur radio activities on the HF bands I only have a 3.6 m wide balcony available for antennas. After some study I decided to experiment with a shortened dipole for the 15 m band

Rx antennas 4Square Rx Vertical Array

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

A simple SWR Meter is to be used at HF

A simple SWR Meter is to be used at HF An SWR meter provides information about how well matched is your antenna with the transmitter and how well power is being radiated