Answer
The PRM240-R2 features an onboard U.FL connector for external antenna integration. Modular certifications cover a specific list of approved antennas. Using high-gain directional antennas (such as Yagi antennas) or custom antenna setups outside the approved list will require end-system regulatory testing. Certification documentation and antenna lists are available in section 8 of the PRM240-R2 Datasheet.
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