Reson SeaBat 7125 ROV, Operator'S Manual

Page: 84 / 200

SYSTEM OPERATION
SeaBat 7125 ROV Operator‟s Manual
Page 68 May 30, 2011
Version 3
5.7.1.2 Set the Transmit Power (Power)
The Power setting allows the operator to increase or decrease the amount of power
(acoustic energy) transmitted into the water. There are multiple increments (from OFF to
220dB), each accounting for an increase of approximately 1dB.
For examples on how to use this setting, see
section 6.2.2 Transmit Power OFF .
5.7.1.3 Set the Maximum Ping Rate (Max Rate)
The Max Rate setting allows the operator to limit the number of pings per second (p/s),
independent of the current range setting. For the SeaBat 7125 ROV the ping range
available is from 0 to 50p/s in increments of 1. The normal value for Max Rate is 50 to
ensure unhindered operation of the sonar.
For examples on how to use this setting, see
6.2.3 Lower Ping Rate.
NOTE
If Max Rate is set to 0, the system will not ping or receive data.
If Max Rate is set to a value higher than the range-determined ping rate, the sonar will
ping at the rate determined by the range setting.
If Max Rate is set to a value lower than the range-determined ping rate, the sonar will
ping at the rate specified by Max Rate.
5.7.1.4 Set the Gain
The Gain setting allows the operator to select the amount of receiver gain applied to the
returned sonar signal (in addition to the calculated gain). The gain range available is
from 0 to 83dB.
For examples on how to use this setting, see
6.2.4 Receiver Gain .
5.7.1.5 Set the Pulse Length
The Pulse Length setting allows the operator to change the pulse length of the
transmitted signal. For the SeaBat 7125 ROV the pulse lengths available are from 33µs
to 300µs in increments of approximately 10µs.
For examples on how to use this setting, see
6.2.1 Pulse Length and Image Resolution .
5.7.1.6 Set Variable Swath
10
Two settings allow the operator to control the swath coverage:
Coverage Angle: This setting allows the operator to change the swath width
from maximum 128° (or 140°) to 45° in increments of 5°.
10
Available with the Efficiency feature package (see Table 22 ).