A.H. Systems SAS-551 Manuale operativo - Pagina 8

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A.H. Systems Model SAS-551 Passive Monopole Antenna

CALCULATIONS

EMISSIONS TESTING

Individual calibration data for the passive monopole antenna is supplied to

comply

measurements, add 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, the generated electric field strength can be

calculated by:

 A.H. Systems inc. – May 2015

REV D

with

various

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

emissions

test

requirements.

For

emissions