Desert Star Acoustic Release Control System, Руководство пользователя

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the list. This will send a status request from STM surface station to the ARC unit under the water.
ARC unit in turn will respond with distance reading and battery charge levels. This information will be
displayed in the lower portion of the “Acoustic Release Control” software window, under “Range” and
“Current Status” fields.
This is also the time to verify your GPS record belonging to the ARC unit. Make sure that the GPS
coordinates in the “Latitude/Longitude” field are in fact valid.
Even though the “Acoustic Release Control” software will retain the GPS coordinates of the deployed ARC units, we strongly
recommend keeping a separate record with the Serial Number of the each ARC unit and corresponding set of GPS
coordinates. Make sure that the second manual record kept separately from the software is in a secure location. In case of a
theft, unforeseen hardware failure of PC, and/or data corruption, the second manual record of Serial Numbers with GPS
coordinates will be your ONLY chance to locate and retrieve ARC units with their payload.
This concludes the deployment procedure. The ARC unit is now resting underwater.
11. ARC Unit Retrieval Procedure
When it is time to retrieve the payload you deployed underwater with the ARC unit, follow these
steps to release the ARC unit from its anchor.
STEP 1
Navigate to the GPS coordinates of the particular ARC unit you wish to retrieve. Once you are at the
location where the ARC unit was deployed, place the STM surface station’s sonar transponder
overboard your vessel. Make sure to submerge the sonar transponder at least to 6 feet or 2 meters
depth.
Make sure sonar transponder meets the optimum orientation: pointing directly down under the
vessel. The over-the-board sonar transducer, supplied with your STM surface station, has a
directional range of a 180 degrees. When the sonar transducer pointed directly down, it will be able
to “hear” the incoming sonar signal from underneath it within a 180 degrees angle. Consider
attaching a small weight to the protective cage of the sonar transducer, opposite the communication
cable, in order to maintain its orientation pointing directly down.
[PICTURE]
A vessel with a sonar transducer deployed overboard, show 6 feet distance between surface and submerged
transducer. Show orientation of transducer pointed directly down and the weight attached to its cage.