ATLAS North America Proprietary
Sea Scan ARC Scout MKII Operations Manual
1 of 1
Page: 60
Issue: 1.2.4
SCTM2-OPS
Operations Manual
Channel
On/Off
Range
Range Delay
1
On
50.0 (25.0)
49.0 (24.0)
2
On
50.0 (25.0)
49.0 (24.0)
3
On
50.0 (25.0)
49.0 (24.0)
Note: Range: 50m (900 kHz, 600 kHz, and 300 kHz); 25m (1800 kHz and 1200 kHz)
Note: Range Delay: 49m (900 kHz, 600 kHz, and 300 kHz); 24m (1800 kHz and 1200 kHz)
6. Open Sea Scan Survey (version 5.0 or later)
7. Start the "Scout System" under the Sonar Interface
8. Start a new survey (See the Sea Scan Survey Operator's Manual for more information).
9. Open the Signal Statistics Window from the view window.
10. Record the Minimum values for each of the system's channels.
11. To determine the amount (if any) EMI interference on the sonar system.
12. Install the system into the host platform
13. Configure the Scout MkII as per Step 5.
14. The Host Platform sensors should be powered and if possible operating as if they were on a standard
mission.
15. If the units are not writing directly to an external Windows PC,
a. Offload the data to an external Windows PC running Sea Scan Survey version 5.0 or later and repeat
steps 7 thru 10.
16. Record the Minimum values for each of the system's channels and determine the amount (if any) the
background noise increased.
17. The table below provides the approximate increases in the noise count and range reduction due to an
increase in the EMI & noise interference.
EMI / Noise Count Increase (dB)
Reduction in Range
6
2m - 3.5m
10
3.5m - 5.5m
12
4.5m - 6.2m
14
5m - 7.8m
16
5.7m - 8.5m
18
6.5m - 9.3m
19
6.9m - 10.5m
If the EMI & Noise Interference is above an acceptable level the following may help to reduce the effects
on the system:
1. Ensure there is proper grounding of the electronic's modules to the chassis
