Quantum SDLT 320 Podręcznik Użytkownika Pobierz pdf (Strona 64)

CHAPTER 5: Regulatory Requirements SDLT 220 and SDLT 320 Design & Integration Guide

5-4 March 2004 81-81148-01

5.2.3 Conducted Emissions

Limits for Class B equipment are in the frequency range from 0.15 to 30 MHz.

5.2.4 Radiated Emissions

Limits of radiated interference field strength, in the frequency range from 30 MHz

to 1000 MHz at a test distance of 10 meters, are listed in Table 5-3.

Table 5-2. Conducted Emissions

Frequency Range Limits dB

Quasi-peak Average

0.15 to 0.50 MHz 66 to 56* 56 to 46

0.50 to 5 MHz 56 46

5 to 30 MHz 60 50

* The limit decreases linearly with the logarithm of the frequency.

Table 5-3. Radiated Emissions

Frequency Range Quasi-peak limits dB (µV/m)

Class A Class B

30 to 230 MHz 40 30

230 to 1000 MHz 46 37

Above 1000 MHz 54 Not applicable

1 2 ... 59 60 61 62 63 64 65 66 67 68 69 ... 101 102

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