Product Info

MORLAB
Shenzhen Morlab Communications Technology Co., Ltd.
FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road,
Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China
Tel: [phone] Fax: [phone]
Http://www.morlab.cn E-mail: [e-mail]
REPORT No.：SZ21070039S02
Page 31 of 53
11.2. Test Procedure
The Following steps are used for each test position
1. Establish a call with the maximum output power with a base station simulator. The connection
between the mobile and the base station simulator is established via air interface.
2. Measurement of the local E-field value at a fixed location. This value serves as a reference value
for calculating a possible power drift.
3. Measurement of the SAR distribution with a grid of 8 to 16mm * 8 to16 mm and a constant
distance to the inner surface of the phantom. Since the sensors cannot directly measure at the
inner phantom surface, the values between the sensors and the inner phantom surface are
extrapolated. With these values the area of the maximum SAR is calculated by an interpolation
scheme.
4. Around this point, a cube of 30 * 30 * 30 mm or 32 * 32 * 32 mm is assessed by measuring 5 or 8
* 5 or 8*4 or 5 mm. With these data, the peak spatial-average SAR value can be calculated.
11.3. Description of Interpolation/Extrapolation Scheme
The local SAR inside the phantom is measured using small dipole sensing elements inside a probe
body. The probe tip must not be in contact with the phantom surface in order to minimize
measurements errors, but the highest local SAR will occur at the surface of the phantom.
An extrapolation is using to determinate this highest local SAR values. The extrapolation is based on
a fourth-order least-square polynomial fit of measured data. The local SAR value is then extrapolated
from the liquid surface with a 1mm step.
The measurements have to be performed over a limited time (due to the duration of the battery) so
the step of measurement is high. It could vary between 5 and 8 mm. To obtain an accurate
assessment of the maximum SAR averaged over 10 grams and 1 gram requires a very fine
resolution in the three dimensional scanned data array.
11.4. Wireless Router
Some battery-operated handsets have the capability to transmit and receive user through
simultaneous transmission of WIFI simultaneously with a separate licensed transmitter. The FCC has
provided guidance in FCC KDB Publication 941225 D06 v02r01 where SAR test considerations for
handsets (L x W ≥ 9 cm x 5 cm) are based on a composite test separation distance of 10 from the
front, back and edges of the device containing transmitting antennas within 2.5cm of their edges,