What is the purpose of argument 'OK' in rx_callback

GNU Radio
1

Hi

Can anyone out there, Kindly do explain the condition during which the
argument ‘ok’ of rx_call back function return false.ie
in the below code n_rcvd will be increamented while n_right will not .

Also if disturbance in transmission will this affect this during
reception

def rx_callback(ok, payload):
global n_rcvd, n_right
n_rcvd += 1
if ok:
n_right += 1

Thanks you in advance.

2

OK == false: when the RX packet’s embedded CRC32 does not match that
computed using the RX’d payload data. In other words, if there are RX
errors in the RX’d packet’s header, payload, or CRC32, then with high
probability OK == false.