A.H. Systems SAS-585 Kullanım Kılavuzu - Sayfa 10

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A.H. Systems SAS-585 Standard Gain Horn Antenna

CALCULATIONS

EMISSIONS TESTING

Individual calibration data for the SAS-585 horn antenna is supplied at a 1-meter

separation distance. For emissions measurements, add the antenna factor plus

cable loss to receiver reading in dBV to convert to field strength in dBV/meter.

Field Strength(dBuV/m) = SA(dBuV) + AF(dB/m) + cable loss (dB)

IMMUNITY TESTING

For Immunity measurements (typically 1 meter), the generated electric field

strength can be calculated by:

REV A

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