Answer
No, the RM186 and RM191 modules only support the on-board Bluetooth chip antenna supplied with the module. An external antenna is supported only for the LoRa radio on the RM186 and RM191.
No, the RM186 and RM191 modules only support the on-board Bluetooth chip antenna supplied with the module. An external antenna is supported only for the LoRa radio on the RM186 and RM191.