![background image](http://html.mh-extra.com/html/samsung/sa-n9001/sa-n9001_hardware-manual_1193241049.webp)
© SAMSUNG Electronics Co., Ltd. Confidential & Proprietary
49
/ 79
Hardware Guide
4.5.2 Interference
Besides the antenna performance, the interference on the user board also affects the radio performance
(especially the TIS) of the module. To guarantee high performance of the module, the interference sources on the
user board must be properly controlled.
On the user board, there are various interference sources, such as the LCD, CPU, audio circuits, and power
supply. All the interference sources emit interference signals that affect the normal operation of the module.
For example, the module sensitivity can be decreased due to interference signals. Therefore, during the design,
need to consider how to reduce the effects of interference sources on the module. It is recommended to take
the following measures:
Shield the signal cable of the board.
Design filter circuits.
Samsung is able to make technical suggestions on radio performance improvement of the module.