Operation MicronNav System
0656-SOM-00001-07 78 © Tritech International Ltd.
4.2. Operating the System
4.2.1. User Controls
1. Click the Tools button to open PPI Control menu
2. Range Scale Control
3. Interrogation Rate Control
4. Cycle and Expand multi-window display applications
5. Select to display chart option. Only available if chart is registered.
6. Select Tracked Position readout as Relative position or World position
RangeScale Control
The user has control over the operating horizontal range between a minimum of 10m to a
maximum of 1000m, this should be selected appropriately depending on the distance of the
ROV from the USBL Dunking Transducer.
Note
The normal max operating range of the MicronNav USBL system is 500m. The
controls allow for a longer range should conditions permit.
Interrogation Rate Control
The interrogation rate of the system (i.e., time between subsequent acoustic transmissions)
can be adjusted between a minimum of 0.5s and a maximum of 10s, this is particularly useful
when operating in a harbour type environment where multipath reflections may cause multiple
positions to be displayed, increasing the time between transmissions allows time for any
multipath reflections to diminish.
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