[ORAWA01]

For the definition of QRN and QRM, I used to think in terms of the type of noise.

QRN is static noise generated by device or appliance or nature itself.
QRM is for non static noise such as human voice modulation or break through noise from any source.

In the case of OP, I was not aware of the source of the noise whether it was generated by man or nature.

Only thing I knew about the noise at the time was, the type of the noise = static, but not the origin, source or nature.

At the stage, one could be wrong whichever term used between QRN or QRM without knowing the source or nature of the noise, if the definition were based on the source of the noise, i.e. nature or man?