improve BLE sensitivity

RE: improve BLE sensitivity

Sigurd — Wed, 19 Jun 2019 11:32:23 GMT

The RSSI is typically not very accurate when you come near the sensitivity limit, in the PS we list ±2 accuracy within the RSSI range -90 to -20 dBm. I would assume phones also have a similar behavior. If you want any valid sensitivity measurement you need dedicated tester, like a R&S CMW500 or Anritsu MT8852B. See this (Chapter 6)and this whitepaper.

RE: improve BLE sensitivity

awneil — Wed, 19 Jun 2019 09:17:23 GMT

According to the Product Specification, the receiver sensitivity is -96dBm.

[quote userid="17287" url="~/f/nordic-q-a/48760/improve-ble-sensitivity"]i use a 52832 module[/quote]

What module?

Probably the biggest single factor affecting this is the antenna - so what antenna do you have?

If your antenna is directional, are you aligning it optimally?

RE: improve BLE sensitivity

Carey — Wed, 19 Jun 2019 08:29:37 GMT

i use nRF5 SDK v12.3.0 ble_central\ble_app_uart_c to scan BLE advertisement and see the db value in the p_adv_report->rssi.

and see db value in the phone use nrf connect .