Gps - sauter SW 1000 Instruction Manual

ously for almost 12 hours. If the battery voltage drops below the minimum voltage
required for the meter operation, the gauge will automatically switch off.
In case of a long operation, we recommend using an external power supply or USB
power supply.
Insert and replace the batteries as shown in the figure below:
Turn the lock right to enable cover removal. Remove the cover from the battery con-
tainer.
Replace the batteries and then close and lock the battery container cover.

2.6 GPS

GPS antenna located on top of the sound level meter with a GPS option.
☆ Hint: The user must know before shipment whether the GPS function is required,
otherwise it will be necessary to return the sound level meter to the factory in order to
install the GPS module.
The GPS properties are influenced by two factors: satellite ephemerides and the sig-
nal-to-satellite noise ratio.
 Satellite ephemerides: Information on the GPS satellite orbit. Based on the
ephemerides, satellite position signal and time, you can specify the current loca-
tion. The satellite ephemerides should be downloaded from the GPS satellite, but
the downloading speed is very low (approx. 50 bps) and depends on the satellite
signal power. A high bit error rate may cause a longer or unsuccessful downloading
of the ephemerides. Once the GPS module is deactivated, the sound level meter
can store the ephemerides for approx. 30 minutes. The ephemerides remain valid
for only 2 hours.
 Signal-to-satellite noise ratio: Power of satellite position signal. The signal power
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