User's Manual

Registration number: W6M21409-14450-C-1
FCC ID: SU7300MCD21V2-CG
Worldwide Testing Services(Taiwan) Co., Ltd Page 13 of 19
3.4 Transmitter Radiated Emissions in restricted Bands
FCC Rules: 15.231 (b), 15.205, 15.209, 15.35
Radiated emission measurements were performed from 30 MHz to 8000 MHz.
For radiated emission tests, the analyzer setting was as followings:
RES BW VID BW
Frequency <1 GHz 100 kHz 100 kHz (Peak measurements)
Frequency >1 GHz 1 MHz 1 MHz (Peak measurements)
1 MHz 1 MHz (Average measurements)
Limits:
For frequencies below 1GHz :
Frequency of Emission
(MHz)
Field strength
(microvolts/meter)
Field Strength
(dB microvolts/meter)
30 – 88 100 40.0
88 – 216 150 43.5
216 – 960 200 46.0
Above 960 500 54.0
For frequencies above 1GHz (Average measurements).
Guidance on Measurement of pulsed emission:
“If the emission is pulsed, modify the unit for continues operation , use the settings shown above,
then correct the reading by subtracting the peak-average correction factor, derived from the
appropriate duty cycle calculation.
For frequencies above 1GHz (Average measurements).
The correction factor, based on the channel dwell tine in a 100 ms period, may be mathematically
applied to a measurement made with an average detector, to further reduce the value.
Duty cycle correction = 20 log (dwell time/100ms)
No duty cycle correction was added to the reading
Modified Limits for peak conform 15.35 (b) = Max Permitted average Limits + 20dB (because Peak
detector is used)
Above 960 MHz
For mode DSSS CW: 54 dBµV/m + 20 dB = 74 dBµV/m
Explanation: See attached diagrams in appendix.