A.H. Systems SAS-521-2 Instrukcja obsługi - Strona 12

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A.H. Systems SAS-521-2 Bilogical Antenna

CALCULATIONS

EMISSIONS TESTING
Individual calibration data for the log periodic antenna is supplied at
appropriate distances (3, and 10 meter) to comply with various emissions test
requirements. For emissions measurements, add antenna factor plus cable
loss to receiver reading in dBµV to convert to field strength in dBµV/meter.
IMMUNITY TESTING
For Immunity measurements, the generated electric field strength can be
calculated by:
© A.H. Systems inc. – December 2008
REV C
FS = Field Strength in dBµV/m
SA = Spectrum Analyzer or Receiver voltage reading
AF = Antenna Correction Factor
CL = Cable Loss in dB
FS = Approximate Field Strength in (V/m)
P = Power in watts
g = Numeric Gain
d = Distance in meters
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