https://devzone.nordicsemi.com/f/nordic-q-a/87309/gazell-mode-sending-questionHi Nordic, I have 2 nrf52840 hosts running gazell HOST mode, and 1 device running gazell DEVICE mode. My question is, when device sends data to host, will both 2 hosts receive the same message? Thanks, nine-foxen-USTelligent Community 13Tue, 26 Apr 2022 08:28:17 GMThttps://devzone.nordicsemi.com/thread/364860?ContentTypeID=1Tue, 26 Apr 2022 08:28:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:44093134-30ca-4f7f-a3e8-aef4bd56d1e4H&#229;kon Alseth<p>Hi,</p> <p>&nbsp;</p> <p>The device will address the payload, and the receiver will check if this address matches its own settings.</p> <p>You should never setup several gazell hosts with the same RX addresses, because then you will get an on-air collision when the hosts tries to ACK.</p> [quote user=""]My question is, when device sends data to host, will both 2 hosts receive the same message?[/quote] <p>No, you should send one payload to each host.</p> <p>&nbsp;</p> <p>Kind regards,</p> <p>Håkon</p><div style="clear:both;"></div>