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Practical range of Bluetooth BLE 4.1/4.2 using KW3x/4x?

Question asked by Mark Butcher on May 22, 2019
Latest reply on May 27, 2019 by Estephania Martinez

Hi All


Has anyone practical experience with the range achieved using BLE with a KW3x/4x and in-circuit antenna (as on the freedom boards)?


The programmable transmitter output power is up to 3.5dBm, which corresponds to about 2.2mW and BLE class 3 max. 1mW) is recommended for 1m range. BLE class 2 (max. 2.5mW)  is recommended for up to 10m range.

This means that it should be able to do class 3 and class 2, up to maybe 7m.


Can this be confirmed as practical or can it do longer distances or is limited to less ?