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RF Inductance Calculator

Mean diameter of the air core coil, measured from conductor centre to conductor centre include the wire insulation thickness, if any
post 24 Sep 2020

Coils Traps Antennas Links


La nobile arte di costruire le trapple Hf
L'operazione di sintonizzazione avviene scostando tra loro, leggermente, le spire dell'induttore

Tuning an LF antenna a variometer is used in series
Tuning an LF antenna can be tricky. An antenna that's much shorter than a quarter wavelength will have a high Q and consequently a narrow bandwidth

Single-layer Coil Inductance and Q
This single-layer coil inductance calculator uses the Lundin's formula [5] for which the maximum relative error is stated to be less than 3 ppm

Air Core Inductor Inductance Calculator
Calculates the inductance of an air core inductor

Antenna Trap Design
Enter desired frequency MHz, Results inductance L uH Capacitance C pF