Title: RF Test Report for 3G MOBILE PHONE
Main Model: AC4E
Serial Model: ANDY AC4E, AC4EW
To: FCC Part 15.247: 2013, ANSI C63.4: 2009
Report No.: 13070549-FCC-R3
Issue Date: December 06, 2013
Page: 33 of 74
www.siemic.com.cn
5.5
§15.247(e) - Power Spectral Density
1. Conducted
Measurement
EUT was set for low, mid, high channel with modulated mode and highest RF output power.
The spectrum analyzer was connected to the antenna terminal.
2. Environmental
Conditions Temperature
24
o
C
Relative
Humidity
45%
Atmospheric
Pressure
1017mbar
3.
Conducted Emissions Measurement Uncertainty
All test measurements carried out are traceable to national standards. The uncertainty of the measurement at
a confidence level of approximately 95% (in the case where distributions are normal), with a coverage factor
of 2, in the range 30MHz – 40GHz is ±1.5dB.
4.
Test date : November 26, 2013
Tested By : Back Huang
Requirement(s):
A conducted power spectral density (PSD) limit of 8 dBm in any 3 kHz band segment within the DTS bandwidth is
specified during any time interval of continuous transmission.4 By rule, the same method as used to determine the
conducted output power shall be used to determine the power spectral density (i.e., if maximum peak conducted output
power was measured then the peak PSD procedure shall be used and if maximum conducted output power was measured
then the average PSD procedure shall be used).
If the average PSD is measured with a power averaging (RMS) detector or a sample detector, then the spectrum analyzer
must be capable of utilizing a number of measurement points in each sweep that is greater than or equal to twice the
span/RBW in order to ensure bin-to-bin spacing of
≤
RBW/2 so that narrowband signals are not lost between frequency
bins.
Procedures:
This procedure must be used if maximum peak conducted output power was used to demonstrate compliance to the
fundamental output power limit, and is optional if the maximum (average) conducted output power was used to
demonstrate compliance.
1.
Set analyzer center frequency to DTS channel center frequency.
2.
Set the span to 1.5 times the DTS channel bandwidth.
3.
Set the RBW
≥
3 kHz.
4.
Set the VBW
≥
3 x RBW.
5.
Detector = peak.
6.
Sweep time = auto couple.
7.
Trace mode = max hold.
8.
Allow trace to fully stabilize.
9.
Use the peak marker function to determine the maximum amplitude level.
10.
If measured value exceeds limit, reduce RBW (no less than 3 kHz) and repeat.
Test Result: Pass.
