Specifications

DX-BT24-T MODULE SPECIFICATION
Shenzhen DX-SMART Technology Co., Ltd. www.szdx-smart.com
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4.4. Hardware Design Layout Recommendations
The DX-BT24-T Bluetooth module works in the 2.4G wireless frequency band and uses an
on-board antenna. The standing wave ratio (VSWR) and efficiency of the antenna depend on the
placement of the patch. Various factors should be avoided as far as possible to the wireless signal
transmission and reception. Pay attention to the following What time is it：
1、Avoid using metal for the product shell surrounding the Bluetooth. When using a part of the
metal shell, try to keep the antenna part of the module away from the metal part.The metal
connecting wire or metal screw inside the product should be as far away as possible from the
antenna part of the module。
2、The antenna part of the module should be placed against the edge of the carrier board PCB
or directly exposed to the carrier board, and it is not allowed to be placed in the middle of
the board，There is at least 5mm of free space in the antenna direction, and the carrier board
under the antenna is milled out. Copper and wiring are not allowed in the direction parallel
to the antenna。
3、It is recommended to use insulating material to isolate the module mounting position on the
substrate, for example, put a whole piece of silk screen at this position（TopOverLay）
Figure 18：Reference position for module placement