High PER at 2Mbps

[Michael]

Hi,

Scenario:

Two nRF52832DK boards on a table, approx 20 cm from each other, +4dBm output power.

Payload length is ~60bytes.

Running at 1Mbps gives me less than 0.1% PER, running at 2Mbps gives about 25% PER. (everything else kept identical)

Is this expected, or is there something at play here?

[AmbystomaLabs]

Two things. Could be how you are doing the PER measurement? Which code are you using?

Also, could just be local WiFi traffic stomping on the Bluetooth signals. The narrow 1Mbps signals sit pretty well in between wifi channels but not so with 2Mbps signals. Try moving all the wifi stuff far away or turning them off. Also make sure you don't have a smartphone/tablet with you.