•
: Temperature
T
•
: Catch
C
•
: Bottom
B
•
: No sensor
N
•
: Marker
M
7
: Unit
U
(meters),
(feet) or
M
f
(Celsius) or
C
F
8
: Source
S
The number (1, 2 or 3) of the sensor providing the current data values
9
: Channel
C
The number (1 to 30) of the communication channel for the current data source
10
: Value
V
The magnitude of the current sensor measurement
11
: Change rate
Cr
The magnitude of the current depth or temperature measurement
12
: Quality
Q
•
: No connection between the sensor and the receiver
0
•
: One or two telemetry pulses are lost, current value is predicted
1
•
: The current data value is reliable
2
13
: Interference
In
•
: No interference
0
•
: Interference is detected
1
14
: Signal level
SL
The signal level of the telemetry pulse, measured in dB // 1 µPa
15
: Noise level
NL
The average noise level of the current channel, measured in dB // 1 µPa
16
: current gain, 0, 20 or 40 dB
G
17
: Cable quality
Cb
•
: Cable is not connected
0
•
: Cable is OK
1
•
: A short circuit, or the hydrophone current is too large
2
18
: Error detected
error
when no error is detected, a number >0 indicates an error condition
0
406273/C
(fathoms) for depth measurements
F
(Fahrenheit) for temperature measurements
Datagram formats
509