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Loop a quadro per onde medie e lunghe
L'idea, del resto non nuova, mi e'venuta una volta che ho aperto il mio computer per apportarvi una modifica
post 05 Dec 2024
Antenna Loop Links →
1.8 a 21 mhz Magnetic loop
For 80 160 connect capacitors accros a & b, use about 390pf
4 meter delta loop
The Delta loop has an impedance of about 100 ohms and to match it we use a quarter wave of 75 ohm coax in series to with the 50 ohm feeder
2m loop full wave antenna
Le caratteristiche piu' interessanti di questa antenna sono, alimentazione diretta in cavo coassiale senza adattatori
14-30 MHz Magnetic Loop Antenna
A high voltage shunt capacitor made from 154 cm 60.5 inches of RG-58/U coaxial cable approximately 150 pF
Two-monoband-magnetic-loop-antennas
The loop for the 21-28 Mhz bands is soldered the ends of the heliax to the butterfly capacitor and to a piece of RG-58 coax
150
For 80 160 connect capacitors accros a & b, use about 390pf
The Delta loop has an impedance of about 100 ohms and to match it we use a quarter wave of 75 ohm coax in series to with the 50 ohm feeder
Le caratteristiche piu' interessanti di questa antenna sono, alimentazione diretta in cavo coassiale senza adattatori
A high voltage shunt capacitor made from 154 cm 60.5 inches of RG-58/U coaxial cable approximately 150 pF
The loop for the 21-28 Mhz bands is soldered the ends of the heliax to the butterfly capacitor and to a piece of RG-58 coax
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