Grandstream Networks GXV3240 Manual

Test Report #: SHE-1402-11114-RF-#1
Prepared for Grandstream Networks, INC
Prepared by ECMG Electronic Technical Testing Corp (Shenzhen). Page 30 of 36
ATTACHMENT 6 –SPURIOUS EMISSION FROM TX
CLIENT:
Grandstream Networks,
INC
TEST STANDARD:
EN 300 328 clause 4.3.6
MODEL TESTED:
GXV3240
PRODUCT:
IP Multimedia Phone
SERIAL NO.:
Engineering Sample
EUT DESIGNATION:
SRD
TEMPERATURE:
22°C
HUMIDITY:
55%RH
ATM PRESSURE:
101.7 kPa
GROUNDING:
No Grounding
TESTED BY:
Daomen
DATE OF TEST:
March 14
th
, 2014
TEST METHOD:
EN 300 328 clause 5.7.5. Scan from 25MHz to 12.75GHz; find the maximum
radiation frequency to measure.
TEST PROCEDURE:
The technique used to find the Spurious Emissions of the EUT transmitter was the
antenna substitution method. Substitution method was performed to determine the
actual emission levels of the EUT.
The following test procedure as below:
1. The EUT was powered ON with Max level and placed on the table in chamber.
The antenna of the transmitter shall be oriented to obtain the maximum emitted
power level, the position of EUT war be recorded.
2. The spurious emissions of the transmitter was maximized on the test receiver
display by raising and lowering the receive antenna and by rotating the turntable.
3. Steps 1 and 2 were performed with the EUT and the receiving antenna in both
vertical and horizontal polarization.
4. The transmitter was then removed and replaced with the substitution antenna.
The centre of the antenna was approximately at the same location as the centre
of the EUT transmitter.
5. A signal at the disturbance was fed to the substitution antenna by means of a
non-radiating cable. With both the substitution and the receiving antennas
horizontally polarized, the receiving antenna was raised and lowered to obtain a
maximum reading at the test receiver. The level of the signal generator was
adjusted until the measured field strength level in step 2 is obtained for this set of
conditions.
6. The output power into the substitution antenna was then measured.
7. Steps 5 and 6 were repeated with both antennas polarized.
TEST PROTOCOL:
The levels of spurious emissions are measured as their power in a specified load
(conducted spurious emissions); and their effective radiated power when radiated
by the cabinet or structure of the equipment (cabinet radiation).
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Grandstream Networks GXV3240 Specifications

General

Brand	Grandstream Networks
Model	GXV3240
Category	IP Phone
Language	English