Ardrone AT* command sampling rate


I was wondering what is Ardrone’s sampling rate of the AT* commands. I’m currently sending AT* commands to Ardrone at 50 Hz. But, judging from the reaction of Ardrone, I don’t think it takes those commands at 50 Hz (probably at 30 Hz or so). And I didn’t find any document showing this detail.

Can anyone who knows anything related to Ardrone’s AT* command sampling rate share this information here?