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Antennas : Antenna Calculators
 Helix Calculator
 JavaScript Implementation Written by Fred Spinner, W0FMS
[ Hits: 3196  Votes: 19  Rating: 3.73 ]
 Loop antenna resonant frequency calculator
 Calculates resonant frequency of a loop antenna, correcting for distributed capacitance.
[ Hits: 7683  Votes: 30  Rating: 4.11 ]
 Dipole Calculator in JavaScript
 Input the desired resonant frequency and it will calculate lenght in inches feet and meters
[ Hits: 4181  Votes: 17  Rating: 6.18 ]
 RF Transmission Line Loss Calculator
 This calculator computes the matched line loss for a transmission line using a model calibrated from data for the transmission line types built in to the calculator.
It also gives an estimate of the mismatched loss if the mismatch is specified.
[ Hits: 2082  Votes: 17  Rating: 4.05 ]
 Slim Jim antenna calculator
^{updated}
 How to make a simple but effective Slim Jim antenna. It includes a calculator to work out all the mesurements for the frequency you require.
[ Hits: 5684  Votes: 42  Rating: 6.04 ]
 Online Antenna Analysis and Design Software
 Free online software to calculate wire antenna power patterns, directivity, input impedance using method of moments.
[ Hits: 1647  Votes: 12  Rating: 4.33 ]
 Cubical Quad Antenna Calculator
 Easy Quad calculator, enter center frequency to get a quad antenna size
[ Hits: 1103  Votes: 15  Rating: 4.20 ]
 Beverage Transformer Calculator
 W0FMS TwoWire Beverage (SWA) Transformer Calculator
[ Hits: 554  Votes: 4  Rating: 4.00 ]
 CenterFed Wire Dipole Antenna Tuning Calculator
 Ever need a way to estimate the amount of wire to add to or remove from a centerfed wire dipole antenna to achieve resonance at a desired frequency? This article help to determine correct wire lenght.
[ Hits: 443  Votes: 5  Rating: 3.60 ]
 Yagi Calculator
^{updated}
 Yagi Calculator is a Windows program that also runs well on Linux, Ubuntu 8.10 under Wine, to produce dimensions for a DL6WU style long Yagi antenna. Long yagis are commonly used from the 144MHz amateur band to the 2.4GHz band.
[ Hits: 584  Votes: 18  Rating: 6.12 ]
 Archimedean Spiral Antenna Calculator
Priority listing
 This free online archimedean spiral antenna calculator uses a wire grid method of moments formulation to model a single or multiple arm spiral. The electric current is computed and used to construct the far zone radiation power pattern. The input impedance and directivity are also computed. Requires Silverlight installed.
[ Hits: 309  Votes: 10  Rating: 4.00 ]
 Circular Loop Antenna Calculator
Priority listing
 This free online circular loop antenna calculator uses a wire grid method of moments formulation to model a single circular loop with a single feed point. The electric current is computed and used to construct the far zone radiation power pattern. The input impedance and directivity are also computed.
[ Hits: 380  Votes: 13  Rating: 4.08 ]
 Dipole Antenna Calculator
Priority listing
 This free online dipole antenna calculator uses a wire grid method of moments formulation to model a single center fed dipole. The electric current is computed and used to construct the far zone radiation power pattern. The input impedance and directivity are also computed.
[ Hits: 586  Votes: 17  Rating: 4.35 ]
Antennas : Feed Lines Operating Modes : DSTAR Shortwave Radio : Schedules Software : Antenna analysis Software : Circuit Design Software : Grid Bearing and Maps Software : Propagation Software : iPhone Technical Reference : Calculators
 Resonant Frequency Calculator
 This web based application will compute circuit values required for an LC circuit to resonate at given frequency. Also it will compute the resonant frequency if given values for L and C.
[ Hits: 1445  Votes: 7  Rating: 5.57 ]
 Capacitor kVAr calculator
 Online calculator to determine the Capacitor kVAr required to improve the power factor from cos 01 to cos 02 with your present kW load
[ Hits: 1114  Votes: 44  Rating: 4.98 ]
 Singlelayer Coil Inductance and Q Calculator
 This calculator ask as input diameter, lenght turn and frequencu and will return L and Q
[ Hits: 148  Votes: 3  Rating: 7.33 ]

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