SeaTrac Serial Command Interface Reference
Page 92
7.6.
Acoustic Transceiver Messages
Acoustic transceiver messages are used to gain information about the activity of the beacons
transmitter and receiver systems, independently to how they are being controlled by any
message protocol handlers.
With the exception of the CID_XCVR_ANALYSE message, all other messages are
generated only when the appropriate enabling flag is set in the acoustic transceiver
settings – see CID_SETTINGS_SET.
Regardless of weather acoustic transceiver messages are generated, protocol handlers
may generate their own specific status and information messages that may duplicate
(or omit) some of the information contained in the messages below. Further details can
be found in the definitions of protocol handler messages found in the subsequent
sections of this document.
7.6.1.
CID_XCVR_ANALYSE
The CID_XCVR_ANALYSE command is sent to instruct the transceiver to perform a background
noise analysis of the receiver, and report its findings.
On receiving the command, the transceiver will stop any reception activity in progress, then
listen to the main receiver transducer for 0.5 seconds to determine noise levels. Once the test
in finished, the transceiver will return to the Idle state waiting for a new reception to
commence.
Command Message Parameters
Parameter Type Description
MSG_ID
identification code
(CID_XCVR_ANALYSE)
Response Message Parameters
Parameter Type Description
MSG_ID
identification code
(CID_XCVR_ANALYSE)
STATUS
Status code used to indicate if the command
executed successfully.
Valid values are…
CST_OK
The command was performed successfully.
CST_FAIL
An error has occurred (such as Transmission in
progress) that prevented the noise analysis from
completing.
