Why my nrf sniffer only capture the 37 38 39？

[flywithme]

i use the hex

sniffer_pca10056_129d2b3.hex

the packet is

nrf_sniffer_for_bluetooth_le_3.0.0_129d2b3.zip

my board is nrf52840- dk

but the wireshark only capture the packet on 37 38 39?

why?

no bonding

just le connect.

could you tell

[Simonr]

Hi

You only see these three channels because these are the channels used for regular BLE advertisements, connection requests, etc. As Turbo J is saying, the DK can capture packets in the other channels, but there is rarely activity there unless you do a specific interaction in your application trigging data to be sent on those channels.

Best regards,

Simon