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GPS Project Training Course - Handling Equipment
4. Handling Equipment
High precision GPS systems consist of separate components that power the system (AC power systems, batteries and solar panels), receive the signals (the antenna), process the signals (the receiver),
and store the data (the receiver and download media). The equipment used for GPS surveys is designed for use in most weather conditions and is fairly rugged. However, as with all electronics the equipment should be handled with care. While this becomes second nature to people who use the equipment regularly, it may not be obvious to new users.
Note: If you have a system go through the different pieces and learn how to connect them and where to look for possible problems such as blown fuses, or missing parts.
Proper GPS equipment handling:
- Be security conscious – theft of GPS equipment is common.
- Before doing anything with the equipment verify that the contents match the enclosed manifest.
- Make sure that the equipment is packed as it was received from UNAVCO.
- Use the dustcaps found on the antenna cables, receiver, and other equipment when the connectors are not in use.
- Do not force connectors when inserting or removing.
- Make sure all cable connectors are clean before making a connection.
- Do not tug on cables – this may damage the internal connection.
- Keep exposed connectors and other components away from moisture, dust, and grit.
- Write down any receiver problems in the receiver notebook, but do not use this for project field notes.
- Keep sharp or abrasive objects away from equipment display panels.
- Roll up antenna cables and remove any kinks - do not loop them around your arm.
- Roll up and tuck battery cables into battery bag pouch when not in use.
- Use proper transport containers and pack them so there are no loose parts inside that may cause damage.
- Secure tripods and other antenna mounts to prevent toppling from wind gusts.
- Attend bi-pods when set up with an antenna – these can easily be toppled, resulting in antenna damage.
- Secure solar panels so they’re not picked up by the wind.
- Keep download computers dry and clean – these are not intended for outdoor use.
- Report any equipment problems to UNAVCO as soon as possible.
Before the equipment leaves UNAVCO, it is configured, tested and determined to be suitable for field use. For extended projects, it may be desired to periodically check the components. The following checklist highlights the most important field check items:
Configure receiver – Control settings, Quickstart, Kinematic Controls, Sessions, Units of Measure
Verify receiver L1 and L2 continuous tracking
Test antennas for L1 and L2 tracking
Test antenna cables, receiver for loose connections
Check cables for visible damage
Charge batteries, check for extra fuses
Check/calibrate tribrachs/rangepole levels
Test solar panels
Useful References:
Field equipment checklist
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Last modified Thursday, 17-Nov-2005 03:57:00 UTC
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