Sequence: C15 (ESB)
Trigger 92 (ESB Sounder Checkout)
This mode is designed to test the Sounder and determine its optimum
operating parameters. For about five minutes the normal analysis of the HFR
is stopped and the Sounder performs 12 soundings, varying its parameters
(mainly the T1 variable, which sets the excitation pulse width).
Because of the continuous sounding, other receivers cease their data
acquisition, with the exception of the MFR. Following the approximately
5-minute Sounder Checkout, all receivers resume data acquisition in their
previous configuration.