Geophysical Survey Systems, Inc.
GS Series
200 HS Antenna
MN27-151 Rev A
6
Overview of Menu Items and their Functions
This section assumes that you have either connected to an antenna and clicked through to Collect or have
opened a previously recorded file in Playback. Items which cannot be accessed in the current mode will
be grayed out.
The Global/Project Menu Stack
Tapping the collapsed menu icon in the top left will open the Global Stack. This grouping of items
provides general system information as well as parameters which generally do not change during a single
survey or job. This menu also contains collapsed submenus. Expand these by tapping the left-pointed
arrow next to each section heading.
Antenna
This section contains information specific to the individual antenna that is connected. Much of this
information is read from the antenna and cannot be changed.
GPR Antenna:
The antenna model currently connected or used to collect the played back data. This can
only be changed by selecting a different antenna in the Collect/Playback screen.
Antenna S/N:
The serial number of the antenna currently connected or used to collect the played back
data.
Position Offset (pS):
This is the internal antenna time delay in picoseconds from the system’s absolute
time zero to the generation of the trigger pulse in the transmitter. This is an internal system parameter
which is set at the factory and cannot be edited.
Antenna Calib. (dB):
This is a dB value which will increase the received signal strength to an
appropriate limit. It will usually display as 0.
Transmit Rate:
GPR is impulse radar and operates by sending out pulses of energy. The transmit rate is
the number of thousand pulses per second (kHz) that the antenna is emitting. This value is set at the
factory to the maximum allowable according to the regulations of the destination country specified at the
time of order.
List Antennas:
Tapping Rescan will cause the software to display the list of currently transmitting and
detected antennas.
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