Vemco HR2, User Manual

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IMPORTANT: It is critical that the built-in transmitter is enabled for all fine-scale positioning (VPS)
studies to allow for proper receiver time synchronization. For all other deployments, it is
recommended that the built-in transmitter be enabled to provide data that can be used for system
performance assessment post-deployment.
Figure 3-12: Enable Transmitter check box
Transmitter Profile options
Click the down arrow to display the options, and then select one for the receiver to use.
NOTE:
Sync Tag is the default transmit profile and is recommended at all times
when not conducting range testing.
Sync Tag (HR 25-35s, PPM 270-330s)
This setting transmits with a random delay between 25 and 35 seconds for HR coding, and 270
and 330 seconds for PPM coding.
Use the Sync Tag setting if you are preparing your receivers for a longer-term deployment.
l
If you are conducting a positioning (VPS) study, Sync Tag detections will be used to
synchronize your receivers' clocks and facilitate accurate position calculation.
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If you are not conducting a VPS study, use the Sync Tag setting to have your transmitter
act as a control or sentinel tag. In this case, you may use detections of the transmitter on
neighbouring receivers as a means of monitoring ongoing acoustic conditions.
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3.4 HR2 Transmitter Tab