FCC Test Report #: SHE-1205-10825-FCC
Prepared for Grandstream Networks, INC
Prepared by ECMG Electronic Technical Testing Corp (Shenzhen) Page 22 of 31
ATTACHMENT 2 – RADIATED EMISSION MEASUREMENT
CLIENT:
Grandstream Networks, INC
TEST
STANDERD:
FCC Part 15,Subpart B,
Section 15.109
MODEL NUMBERS:
GXW4232,GXW4224
PRODUCT:
VoIP Gateway
EUT MODEL:
GXW4232
EUT
DESIGNATION:
Home or Office
TEMPERATURE: 23°C HUMIDITY:
49%RH
ATM PRESSURE:
103.0kPa
GROUNDING:
None
TESTED BY:
Daomen
DATE OF TEST:
June 12
th
, 2012
TEST REFERENCE:
ANSI C63.4 -2009
TEST PROCEDURE:
The EUT was set up according to the guidelines of ANSI C63.4 -2009 for radiated
emissions. An EMI receiver peak scan was made at the frequency measurement
range (pre-scan) in an Anechoic chamber.signal discrimination was then performed
and the significant peaks marked.these peaks were then quasi-peaked in the
frequency range of 30 MHz to 1GHz and average and peak in the frequency range
of 1GHz to 3GHz at an anechoic chamber.
The following data lists the significant emission frequencies, measured levels,
correction factors (including cable and antenna correction factors), and the
corrected readings against the limits. Explanation of the Correction Factor are
given as follows:
FS= RA + AF + CF - AG
Where: FS = Field Strength
RA = Receiver Amplitude
AF = Antenna Factor
CF = Cable Attenuation Factor
AG = Amplifier Gain
TEST MODE Connected to PC
TESTED RANGE:
9K-30MHz and 30MHz to 5GHz
TEST VOLTAGE:
AC 120V/60Hz
RESULTS:
The EUT meet the requirements of test reference for radiated emissions. The test
results relate only to the equipment under test provided by client.
CHANGES OR
MODIFICATIONS:
There were no modifications installed by ECMG Electronic Technical Testing Corp
(Shenzhen). Test personnel.
M. UNCERTAINTY:
Freq. ± 2x10
-7
x Center Freq., Amp ± 2.6 dB
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