A.H. Systems Model EHA-51B Active Monopole and Loop Antenna
CALCULATIONS
EMISSIONS TESTING
Individual calibration data for the active loop antenna is supplied to comply
with various emissions test requirements. For emissions measurements, add
antenna factor plus cable loss to receiver reading in dB
V to convert to field
strength in dB
A/meter.
Field Strength(dBuA/m) = SA(dBuV) + MAF(dB/m) + cable loss (dB)
SA = Spectrum Analyzer or Receiver voltage reading
MAF = Magnetic Antenna Correction Factor
CL = Cable Loss in dB
Fictitious electric field strength can be calculated by the following:
dB
V/m = dB
A/m + 51.5
A.H. Systems inc. – Oct 2017
REV B
11
