https://devzone.nordicsemi.com/f/nordic-q-a/20575/ble-tx-timeHi, I did time measurements for packet transmission (notification) and saw only ~ 30 microseconds (about 1000 ticks with 0 prescale) difference between sending one or up to 7 packets. I was measuring time before writing to the sd_ble_gatts_hvx anden-USTelligent Community 13Mon, 20 Mar 2017 14:55:24 GMThttps://devzone.nordicsemi.com/thread/80202?ContentTypeID=1Mon, 20 Mar 2017 14:55:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:65854ce5-f8c1-4138-b543-4f798a6c33ffPetter Myhre<p>I think there are something fishy about your measurements, in 30us you are only able to send 30 bits with 1Mbps, and empty packet is 10 bytes = 80 bits. And then you have all the other stages, see <a href="https://devzone.nordicsemi.com/power/">this</a>.</p><div style="clear:both;"></div>