User's Guide

Table Of Contents
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Operational Setup and Testing
39
SWRU548AFebruary 2019
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CC3235MODSF LaunchPad™ Development Kit (LAUNCHCC3235MOD)
4.2 RF Connections
4.2.1 AP Connection Testing
By default, the board ships with the 2.4 GHz and 5 GHz RF signals routed to the onboard chip antenna,
as shown in Figure 25.
Figure 25. Using Onboard Antenna (Default Condition)
A U.FL connector J17 provides a way to test in the lab using a compatible cable. Alternatively, trackpads
for an SMA connector J15 are provided onboard to replace the J17 U.FL connector for testing conducted
measurements. A rework must be performed before these connectors can be used; this involves swapping
the position of a resistor. Figure 26 shows the modified board.
Figure 26. Board Modified for External Antenna Connections (Measure 2.4 GHz or 5 GHz)