GSSI SIR 30, Manual

Page: 35 / 150

Geophysical Survey Systems, Inc. SIR® 30
Manual
MN 93-101 Rev E 29
Figure 41: Run Mode Distance.
Point Mode:
The Point mode is recommended when using large low frequency antennas or collecting
data on rough, uneven terrain, or when collecting velocity data using the CMP or WARR methods. In
Point mode the User will be collecting one radar scan at a time. Selecting the Point mode will enable the
Static Stacking option in the RADAR Config menu.
Figure 42: Run Mode Point - Static Stacking enable.
• STATIC STACKING:
This option is only visible if the User has selected the Point mode. This allows
the User to stack (average) them together and output the result. Static Stacking may result in improved
signal to noise ratio and deeper penetration. The range of values available to the User are 1- 10,000.
• SCANS/SEC:
This option allows the User to control the speed of data acquisition. The maximum scan
rate is a function of the Pulse Repetition Frequency (PRF) and the number of samples per scan. The
scans per second determine how fast the system will collect data. Setting the scans per second below
the maximum rate will automatically enable data stacking. This may result in better data quality i.e.
higher signal to noise ratio at the expense of data acquisition speed.