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 22 of 53
8. SAR System Verification
Each DASY system is equipped with one or more system validation kits. These units, together with
the predefined measurement procedures within the DASY software, enable the user to conduct the
system performance check and system validation. System validation kit includes a dipole, tripod
holder to fix it underneath the flat phantom and a corresponding distance holder.
8.1. Purpose of System Performance check
The system performance check verifies that the system operates within its specifications. System
and operator errors can be detected and corrected. It is recommended that the system performance
check be performed prior to any usage of the system in order to guarantee reproducible results. The
system performance check uses normal SAR measurements in a simplified setup with a well
characterized source. This setup was selected to give a high sensitivity to all parameters that might
fail or vary over time. The system check does not intend to replace the calibration of the components,
but indicates situations where the system uncertainty is exceeded due to drift or failure.
8.2. System Setup
The output power on dipole port must be calibrated to 24 dBm (250 mW) before dipole is connected.
In the simplified setup for system evaluation, the DUT is replaced by a calibrated dipole and the
power source is replaced by a continuous wave which comes from a signal generator. The calibrated
dipole must be placed beneath the flat phantom section of the SAM twin phantom with the correct
distance holder. The distance holder should touch the phantom surface with a light pressure at the
reference marking and be oriented parallel to the long side of the phantom. The system check verifies
that the system operates within its specificat
ions. It is performed daily or before every SAR
measurement. The system check uses normal SAR measurements in the flat section of the phantom
with a matched dipole at a specified distance. The system verification setup is shown as below.
Fig 8.1 Photo of Dipole Setup Fig 8.2 System Setup for System Evaluation