im calculator
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Antennas : Antenna Calculators Slim Jim antenna calculator
 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: 7181  Votes: 65  Rating: 5.31 ]
 Online Antenna Analysis and Design Software
 Free online software to calculate wire antenna power patterns, directivity, input impedance using method of moments.
[ Hits: 2200  Votes: 19  Rating: 4.74 ]
 Discone Antenna Calculator
 Calculate dimension for discone antennas online
[ Hits: 2536  Votes: 35  Rating: 6.00 ]
 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: 716  Votes: 5  Rating: 3.60 ]
 Yagi Calculator
 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: 1535  Votes: 27  Rating: 6.25 ]
 Archimedean Spiral Antenna Calculator
 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: 779  Votes: 23  Rating: 3.27 ]
 Circular Loop Antenna Calculator
 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: 914  Votes: 17  Rating: 4.47 ]
 Dipole Antenna Calculator
 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: 1148  Votes: 21  Rating: 4.23 ]
 Equiangular Spiral Antenna Calculator
 This free online equiangular 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.
[ Hits: 633  Votes: 21  Rating: 4.95 ]
 HB9CV antenna calculator
 Calculate dimension for HB9CV directional antennas
[ Hits: 2264  Votes: 59  Rating: 4.47 ]
 T Match efficiency estimator
 This calculator estimates the efficiency of a T match tuner using a simple loss model.
[ Hits: 466  Votes: 1  Rating: 4.00 ]
 Six Meters Beacons Calculator
 The six meter beacons calculator for distance and azimuth by OE1SMC
[ Hits: 466  Votes: 1  Rating: 1.00 ]
 NOAA Solar Calculators
 Improved Solar Calculator, Old Sunrise/Sunset and Solar Noon Calculator, Solar Position Calculator
[ Hits: 155  Votes: 0  Rating: 0.00 ]
 Magnetic Loop Excel sheet
 A magnetic loop antenna calculator made with an excel sheet that run also with open office, let you design mag loop antenna dimensions by AA5TB
[ Hits: 1166  Votes: 3  Rating: 10.00 ]
 MicroMUF
 MicroMUF is a windows free HF propagation calculator that you can use to estimate the MUF (Maximum Usable Frequency) and LUF (Lowest Usable Frequency) between any two points on the Earth.
[ Hits: 1013  Votes: 1  Rating: 4.00 ]
 iRFC for iPhone
 IRFC offers a full Radio Frequency Calculator on the go for network impedance adaptation with smith chart
[ Hits: 379  Votes: 1  Rating: 10.00 ]
 RF Attenuator Calculator
 This is an online rf attenuator calculator provided free in order to promote the FLEXIBOX. Calculates the resistor values, attenuation, minimum attenuation, impedance, reflection coefficient, VSWR and return loss of a matching Pi attenuator
[ Hits: 111  Votes: 0  Rating: 0.00 ]
 Coaxial Line Impedance Calculator
 Online coax cable impedance calculator
[ Hits: 411  Votes: 7  Rating: 3.57 ]
 RF Safety Compliance Calculator
 This program is intended for farfield calculations, Calculate Estimated Power Density based on several factors.
[ Hits: 331  Votes: 2  Rating: 5.50 ]
 EMR Safety Compliance Calculator
 This spreadsheet replicates ALL the tables and lookups in the FCC, ACMA and New Zealand EMR RF Safety compliance regulations.
[ Hits: 262  Votes: 3  Rating: 6.33 ]
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