Increasing BLE Scan Range on nRF52840 BLE nRF Connect 1.8.0

RE: Increasing BLE Scan Range on nRF52840 BLE nRF Connect 1.8.0

user2111 — Thu, 19 May 2022 11:19:41 GMT

There have been various examples over time, I guess this is the latest one:
https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/testing-max-range-with-ble-with-nrf21540dks-and-nrf52840-dks

This is an older one:
https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/testing-long-range-coded-phy-with-nordic-solution-it-simply-works-922075585

Kenneth

RE: Increasing BLE Scan Range on nRF52840 BLE nRF Connect 1.8.0

user104389 — Thu, 12 May 2022 22:15:48 GMT

I changed my scan init to using .options = BT_LE_SCAN_OPT_CODED and added CONFIG_BT_CTLR_PHY_CODED=y to my config file. Are these the only things I need to change the scanning to coded PHY?

I tried testing with sdk 17.0.2 BLE_APP_UART running on a second board and saw some slight range increase, but wasn't sure if I was limited by the tx power of the BLE_APP_UART sample. Are there any apps that are designed for testing range like this more precisely?

RE: Increasing BLE Scan Range on nRF52840 BLE nRF Connect 1.8.0

user2111 — Tue, 19 Apr 2022 13:45:51 GMT

You may find answer 2 relevant from this this thread:
https://devzone.nordicsemi.com/f/nordic-q-a/86649/scanner-and-advertising-options-questions/362126#362126

In general the radio can only operate in one mode at a time (coded (optional) or 1Mbps (default enabled)), when you start scanning you can choose which to use, and the softdevice (BLE) controller will duty cycle/time divide the modes, such that it is possible to configure to use either coded or 1M, or both coded and 1M, though they do not actively occur at the same time.

Kenneth