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Feeding a Folded Dipole Antenna
If you play with the numbers, and get the input impedance down to 200ohms, you'll need a 4:1 balun to feed it from 50 ohm coax
post 05 Dec 2024
Antenna Calculator Links →
Loop antenna resonant frequency calculator
The simple calculator below uses the well-known standard formula for determining the total wire length in feet for a single element
Logarithmic Periodic Dipole Antenna Calculator
The javascript starts with the minimum value of = 0.76. If a solution could be found, is increased as long as the length of the boom
Magnetic Loop Antenna Calculator
Magnetic loops or mag loops, can give surprisingly good performance when they are carefully designed and constructed
Parabolic dish calculator
Complete all white boxes and then click the calculate button to obtain results in the green boxes
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The simple calculator below uses the well-known standard formula for determining the total wire length in feet for a single element
The javascript starts with the minimum value of = 0.76. If a solution could be found, is increased as long as the length of the boom
Magnetic loops or mag loops, can give surprisingly good performance when they are carefully designed and constructed
Complete all white boxes and then click the calculate button to obtain results in the green boxes
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