Wildlife Acoustics sm3bat, User Manual

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SM3BAT User Guide SM3BAT Setup
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BIOACOUSTIC MONITORING SYSTEMS
You can also view the GPS locations per recording period and clock drift in the
Summary file, generated by the SM3BAT while recording. The drift is logged as
time delta from the SM3BAT real-time clock (RTC). Negative numbers means the
RTC is slow relative to GPS while positive numbers mean the RTC is fast relative to
GPS. This file can be used for special cases, where drift of unsynchronized
recordings between two synchronized recordings can be estimated and corrected.
3.18.3
Power Considerations
The GPS receiver consumes about 500 mW of additional current. This can result in
a reduction of about 65% of the estimated battery life for audio recordings and
50% of the estimated battery life for ultrasonic recordings.