GSSI SIR 30, Manual

Page: 82 / 150

Geophysical Survey Systems, Inc. SIR® 30
Manual
MN 93-101 Rev E 76
OVERSPEEED INDICATOR
Depending upon the maximum Xmit capability of the antennas, as well as the Users data collection
parameters and number of data channels, the system can be overdriven, i.e. The User may try to collect too
much data too fast for the radar system to keep up. The SIR 30 data acquisition screen is provided with an
over speed indicator that will alert the User that they are approaching the maximum speed for a given data
collection configuration, or that they have exceed the maximum data acquisition rate and the system is
dropping scans e.g. loosing data. The SIR 30 will begin to beep when the User enters a yellow over speed
condition. The SIR 30 will emit a continuous tone when it begins to drop scans.
The following figures illustrate the over speed indicators and are found on the bottom left corner of the
SIR 30 data collection screen.
Figure 112: Green over speed. Speed O.K.
Figure 113: Yellow over speed. Speed approaching system limits.
Figure 114: Red over speed. System dropping scans.
Note:
When the SIR 30 System is in an over-speed condition (the over speed indicator is the red zone)
data collection cannot be started. If data collection is started in an over speed condition, the SIR 30 system
will shut down and will need to be re-booted
Bi Static Data Collection Setup
In this section, we present a step-by-step description of the data collection setup of the SIR 30 with two (2)
antennas in a bi-static and a bistatic\dual receiver configuration. During bistatic setup, the initial
positioning of the signal and the gain is critical to collecting useable bistatic, CMP or WARR data.