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For Wi-Fi connectivity, connect the 2 cellular ports labelled 1-2 to suitable antenna(s) that support 2x2 MIMO or use individual “stubby” style antennas.
The The CTM-500 supports 2.4 Ghz, 5 Ghz and 6 Ghz Wi-Fi, so select an antenna that supports 2.4/4.9-6 Ghz.
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