RE: Change nRF51DK BLE RX frequency channel (BLE sniffer)

AndreasF — Wed, 12 Dec 2018 13:28:49 GMT

Hi.

[quote user=""]Question: Is it possible for me to change the receive frequency of nRF51DK and still use the BLE sniffer code with Wireshark?[/quote]

I'm unsure if this will work, we don't have any support for our Python implementations. CH39 advertises at 2.480 GHz, I don’t think you can make it advertise at 2.483 GHz since that is out of BLE spec.

What i would recommend you to do if you want to avoid interference is either test at a remote location where you don't have interference from BLE/WiFi, or use a radio chamber, or find an old microwave oven which you drill a hole in to plug the USB cables inside. Microwaves have good interference reduction.

Note also that the nRF51 does work perfect as a BLE Sniffer, it is reasonable. The nRF51 also turns off and on the radio in order to recalibrate the crystal, so this should also be taken into account.

I would recommend that you use a professional BLE Sniffer, for example the Ellisys Bluetooth Explorer.

Best regards,

Andreas