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WL1837MOD: WL1837 selftest (RF)

Part Number: WL1837MOD
Other Parts Discussed in Thread: WL1837

hi dear Engineers!

is it possible to perform selftest use 2x antennas on WL1837 module to recognize hang / abnormal state ?

our device works alone in the parking lot entrance and ~60% of operation time no devices (WiFi Mobile Phone or BT rf tag) in close distance.

Maybe another solution exist with WL18xx ?

Thanks you!