Psimdhb Bottom Hardness And Biomass - Simrad ES70 - INSTALLATION REV A Installation Manual

Simrad ES70
12 = quality:
qual
• 0 = No connection between the sensor and the receiver
• 1 = One or two telemetry pulses are lost, current value is predicted
• 2 = The current data value is reliable
13 = interference:
infe
• 0 = No interference
• 1 = Interference detected
= signal level – the signal level of the telemetry pulse, measured in dB // 1 µPa
14
siglev
15 = noise level – the average noise level of the current channel, measured in dB
nlev
// 1 µPa
= the current gain; 0, 20 or 40 dB.
16
gain
17 = cable quality:
cable
• 0 = cable is not connected
• 1 = cable is OK
• 2 = a short circuit, or the hydrophone current is too large
18 = error detected – 0 when no error is detected, a number >0 indicates an
error
error condition
= The checksum field consists of a "*" and two hex digits representing the
19
chksum
exclusive OR of all characters between, but not including, the "$" and "*" characters
Related topics
• How to set up the Simrad PI Catch monitoring system interface on page 88

PSIMDHB Bottom hardness and biomass

This proprietary Simrad telegram contains the bottom hardness and biomass as calculated
by an echo sounder.
Format
$PSIMDHB,hhmmss.ss,t,f,KHZ,x.x,M,y.y,DB,z.z,,,<CR><LF>
Format description
1 = talker identifier (mandatory)
$P
2 = Simrad talker ID
SIM
3 = coordinated universal time (UTC)
DHB
4 = time
hhmmss.ss
5 = transducer number
t
6 = echo sounder frequency in kHz
f,KHZ
= detected bottom depth in meters. Given as DBS (depth below surface),
7
x.x,M
assuming proper transducer draft has been entered.
8 = bottom surface hardness in dB
y.y,DB
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