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AFCALC.DOC
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1995-07-31
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_____________________________________________________________________
AFCALC a program to calculate Antenna Factor
Copyright August 1, 1995
by James Eagleson
_____________________________________________________________________
AFCALC was written in Turbo C by Jim Eagleson, WB6JNN/9 to aid
in working out FCC related measurements when performing Part 15
certifications as well as making antenna evaluation measurements.
The basic formula for determining Antenna Factor is:
AF = 20*LOG(FR/(30.82*SQRT(GR)))
Where:
AF = Antenna Factor.
FR = Frequency in MHz.
GR = Gain Ratio of Antenna
relative to isotropic.
GR = 10^(GA/20)
(GA = Gain of Antenna(dBi)
The author of AFCALC also has a program dealing with Field Strength
(FSCALC) which calculates dBuV/m, uV/m, Path Loss, Antenna Factor,
and other items commonly used for Field and Antenna measurements.
James Eagleson, WB6JNN/9
W271 N732 Jill's Drive
Waukesha, WI 53188
___________________________________________________________________