Page 132 - TBIS_15194-2019_(EN)_3nd

TBIS 15194:2019

Key

X frequency f in MHz
Y reference limits L in dB [μV/m)
C1 requirements relating to narrow-band radiation emission from EPAC, antenna at 10 m
C2 requirements relating to broad-band radiation emission from EPAC, antenna at 10 m
C3 requirements relating to narrow-band ESA radiation emission, antenna at 1m
C4 requirements relating to broad-band ESA radiation emission, antenna at 1 m
C5 requirements relating to narrow-band radiation emission from EPAC, antenna at 3 m

C6 requirements relating to broad-band radiation emission from EPAC, antenna at 3 m

Figure C.1 — Overview of electromagnetic radiation emissions reference limits
Table C.1 — Overview of electromagnetic radiation emissions reference limits – Curves characteristics

Characteristic Value Band-width Antenna Equation for L [dB(µV/m)] within f [MHz]
distance [m] 30…75 75…400 400…1000

C1 mean value narrow-band 10±0.2 24 = const. 24 + 15.13log(f/75) 35 = const.
C2 quasi-peak broad-band 10±0.2 34 = const. 34 + 15.13log(f/75) 45 = const.
C3 mean value narrow-band 1.0±0.05 54-25.13log(f/30) 44 + 15.13log(f/75) 55 = const.

C4 quasi-peak broad-band 1.0±0.05 64-25.13log(f/30) 54 + 15.13log(f/75) 65 = const.
C5 mean value narrow-band 3±0.05 34= const. 34 =15.13log(f/75) 45 = const.
C6 quasi-peak broad-band 3±0.05 44= const. 44 + 15.13log(f/75) 55 = const.

However, the measuring methods used in checking the immunity of EPAC and ESAs to
electromagnetic radiation are described in C.4 and C.7.

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