User's Manual

FLC-BTM403 Datasheet
Flaircomm Microelectronics Confidential
-38-
11.4.2 BTM403B
There is no built-in antenna in BTM403B. BTM403B is integrated with a UFL connector to make it
simple for designers to add an external antenna into the module. In order to make the product
compliant with the FCC standard, the applicable antennas which designers choose should be similar
to the antenna in BTM403A and BTM403C in specifications and radiation patterns. And the gain
should be less than the peak gain of the antenna in BTM403A and BTM403C. If designers choose a
different antenna, additional testing and equipment authorization are needed to ensure the
compliance with FCC statement.