Note
For Pro340 and Pro380 only: connecting a Quad Antenna is not mandatory for the unit's use.
You can connect up to two Quad Antennas to the MCX connectors on the front of the device.
Note
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When plugging in a Quad Antenna, the unit automatically switches from its enabled antennas to the Quad Antenna's external antenna arrays.
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If only one Quad Antenna is connected to the unit, you need to disable the modems that are not used. (Please see (6.0-Air-Pro3-Rack3) Enabling/Disabling a Cellular Modem.)
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When restarting the unit, the configuration that you applied to modems is kept.