Wildlife Acoustics sm3bat, Руководство пользователя

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SM3BAT User Guide SM3BAT Setup
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BIOACOUSTIC MONITORING SYSTEMS
Crystal oscillators used in clocks and electronics, including the SM3BAT, have
frequencies that vary over time. The SM3BAT clock uses a temperature-
compensated crystal with very low drift (< 3.5 ppm); however, clock drift of several
milliseconds per hour can still occur.
The SM3BAT GPS receiver can synchronize your recordings across multiple
recorders to within one millisecond. Arrange multiple time-synchronized recorders
to triangulate a source location by measuring the relative time-of-arrival of sound
waves as they travel.
NOTE : The GPS Time Synch Option provides synchronized recordings, but additional
third-party tools are needed to determine the time of arrival of a particular signal to
each microphone and calculate the position of the source.
1. Order an SM3BAT with this option or place a new order for the GPS time-
synch receiver for the SM3BAT.
2. The Location Settings are automatically set by the GPS.
NOTE : Although the navigation steps are the same, the Location Settings coordinates
are now read-only. You cannot change them. This change in location may affect the
calculated sunrise and sunset times when using advanced scheduling commands.
3. To verify, perform the steps in 3.8 How to Set the Location and Time Zone.
4. Unpack the optional GPS time-synch receiver and the included 5-meter cable.
5. Remove the cap over the serial communication connector, the third connector
from the top in the series of four ports in the connector module.
6.
Attach, rotate, and secure the cable to the serial communication connector to
make a weatherproof seal.
7. Position the receiver where a reliable GPS signal can be received.
NOTE : It can be difficult to acquire a GPS signal in thick vegetation.
8. The SM3BAT automatically detects the presence of the GPS receiver. When the
recorder wakes up, the GPS receiver is powered up. A question mark (?) blinks
between the date and time to indicate that the GPS receiver is attempting to
acquire global positioning satellite data.
2014-Jan-31 ? 09:00:00
SM3 99999
ULT R1.0.0
A: 2/128 B: 0/128
C: 0/128 D: 0/128
9. When the GPS receiver has successfully acquired satellite transmission, the
question mark changes to an exclamation point (!) and then a dollar sign ($)
indicating that the clock is now synchronized.
10. The SM3BAT clock automatically adjusts to GPS time.