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5 cze 2021 · The Antenna Calculator for Half-Wave Dipoles. Enter your desired frequency (MHz) of operation (i.e. 3.55). If you have no particular preference within a given ham radio band, then simply enter its center frequency (i.e. 7.15 for the 40 meter band).
ERP & EIRP Calculator – Calculate effective radiated power from your antenna. Resonant Frequency Calculator – Calculate the resonant frequency of a parallel inductor and capacitor tuned circuit. PI attenuator calculator – Calculate the resistor values for a PI attenuator.
Wire Antenna Calculator. A random wire antenna [1] is comprised of a long wire above ground that is used to transmit and receive signals. This is a quick way to add an antenna to radio equipment.
The measurements below are for building a simple Dipole Antenna. The Wire Size can range from 16 AWG to 12 AWG. The larger the wire, the wider the bandwidth. The antenna is designed to be fed with 50 or 75 Ohm Coax Cable of most any length with a Balun.
This calculator can be used to design a Quarter Wave Ground Plane antenna, with radials. The radiating element is a quarter wave (λ/4) and the radials are 12% longer. There are usually four radials, three being a minimum, but you could use up to six.
Design your J Pole for hf, 2 meters, 220, 440 and up! J-Pole Antenna Design. SAVE TIME BY USING THE CALCULATOR BELOW. NOTE: Coax center conductor attaches to the. "Long section" feed point. Shield attaches to the short section feed point. Enter The Operating Frequency.
Ham Radio Wire Antenna Calculator. For ALL ANTENNAS Enter operating frequency in mHz. For Inverted Vee antennas ONLY, decide what is the approximate angle from horizontal. 22 Degree - 2% shorter 30 Degree - 3% shorter 37 Degree - 4% shorter 45 Degree - 5% shorter. Click to or.
