Safety Information

Page 12 of 33 Report No.:FCS202103006W01
Flux Compliance Service Laboratory
Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan
Tel: [phone] Fax:[phone] http://www.fcs-lab.com
3 CONDUCTED EMISSION MEASUREMENT
3.1 LIMIT
Operating frequency band. In case the emission fall within the restricted band specified on Part
207(a) limit in the table below has to be followed.
FREQUENCY (MHz)
Conducted Emissionlimit (dBuV)
Quasi-peak
Average
0.15 -0.5
66 - 56 *
56 - 46 *
0.50 -5.0
56.00
46.00
5.0 -30.0
60.00
50.00
Note:
(1) The tighter limit applies at the band edges.
(2) The limit of " * " marked band means the limitation decreases linearly with the logarithm of the
frequency in the range.
3.2 TEST PROCEDURE
The following table is the setting of the receiver
Receiver Parameters
Setting
Attenuation
10 dB
Start Frequency
0.15 MHz
Stop Frequency
30 MHz
IF Bandwidth
9 kHz
a.
The EUT was 0.8 meters from the horizontal ground plane and 0.4 meters from the vertical
ground plane with EUT being connected to the power mains through a line impedance
stabilization network (LISN). All other support equipments powered from additional LISN(s).
The LISN provide 50 Ohm/ 50uH of coupling impedance for the measuring instrument.
b.
Interconnecting cables that hang closer than 40 cm to the ground plane shall be folded back
and forth in the center forming a bundle 30 to 40 cm long.
c.
I/O cables that are not connected to a peripheral shall be bundled in the center. The end of the
cable may be terminated, if required, using the correct terminating impedance. The overall
length shall not exceed 1 m.
d.
LISN at least 80 cm from nearest part of EUT chassis.
e.
For the actual test configuration, please refer to the related Item –EUT Test Photos.