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GPS
: A global navigation system based on 24 or more satellites orbiting the earth at an
altitude of 12,000 statute miles and providing very precise, worldwide positioning and
navigation information 24 hours a day, in any weather. Also called the NAVSTAR
system.
GPS acquisition time
: The time it takes a GPS receiver to acquire satellite signals and
determine the initial position.
Interleaving:
This feature, unique to The Quantum 4000 Enhanced, inserts additional
GPS location attempts into the schedule using the battery power saved when very short
acquisition times accrue to outperform the user set GPS timeout. These unscheduled
GPS location attempts will be inserted between the scheduled location attempts. And
they will only be inserted when enough battery power has been accumulated so that these
inserted attempts won’t affect the battery life. This feature is activated on request prior to
shipping from our factory.
KML:
This is the file format used for viewing data in Google Earth.
Latitude
: A positions distance north or south of the equator, measured by degrees from 0
to 90. One degree of latitude equals sixty nautical miles. One minute of latitude equals
one nautical mile.
Longitude
: The distance east or west of the prime meridian measured in degrees. The
prime meridian runs from the North Pole to South Pole through Greenwich, England.
Maximum number of locations
: The most locations that a GPS unit can acquire before
its primary battery is depleted.
Missed positioning opportunities
: The instances of no location data acquired by a GPS
unit when a GPS position was attempted.
Non-volatile memory
: A memory chip that does not require a power source in order to
retain information.
Output
: Information supplied to the user by the GPS unit whether supplied by mobile
phone download, radio download or direct download via a custom USB cable.
Radio download
: GPS position data that is stored in the GPS unit memory and
transmitted to the user via a 420 MHz transceiver.
Remote data download
: GPS position data that is stored in the GPS unit memory and
transmitted to the user.
Sample Rate:
How often the accelerometer records motion data into its RAM. This data
is then added up for each delta period.
Store-On-Board
: A GPS unit that acquires GPS positions and stores them but does not
transmit them to the user remotely. A user must recover this unit to extract the data
manually via a wireless or a USB connection between the unit and the user’s PC.
Temperature Range of Operation
: The lowest and highest temperatures at which a GPS
unit will still continue to operate properly. The units are not guaranteed to operate
properly outside of this temperature range.
Summary of Contents for 4000 Enhanced
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