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Helical Antenna Design Calculator


Find a tube with a circumference equal to one wavelength, and wrap wire in a helix spaced a quarter wavelength
post 05 Dec 2024
Helical Antenna Design Calculator

Antenna Calculator Links

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Impedance Calculators
These calculators are used by Mantaro engineers and provided freely for your use

J-pole antenna design calculator
For 2 meters, the coil is 4 turns of coax at 5 inches in diameter

J Pole Antenna dimension calculator
The J Pole antenna is a simplified version of the Slim Jim antenna, using the same matching stub principle

Log periodic dipol array
Detail of the end-fed feed of a VHF log periodic dipole array


PIC-Keyer

PIC-Keyer This project describes the construction of a real "QRP" keyer with a small microcontroller PIC 16F84, with slightly modified hardware also PIC16F62

Radioassistance

Radioassistance Radioassistance E Kenwood Dealer, vendita ricetrasmittenti, antenne, parti di ricambio, elettronica

Conrad Electronic

Conrad Electronic Electronic components online shop in German and Italian