457DSC OPERATIONDTransmitting a Test Acknowledgement callWhenthe “TESTACK” inDSCsettingsissetto ‘Auto’(p. 68), the transceiver automatically transmits a reply callwhen receiving a Test call.Quick ACK:When a Test call is received, beeps sound and the screenqshown below is displayed.Push [ALARM OFF] to stop the beeps.Push [ACK].w