User Manual

Geophysical Survey Systems, Inc. Model 52600 Antenna
System Settings and User Notes
Model 52600 Antenna
Thank you for purchasing a Model 52600 antenna. The Model 52600 represents the current state
of the art in high resolution concrete structure imaging. The Model 52600 antenna has greatly
improved resolution over previous high frequency antennas. Not only is the frequency higher,
but the antenna has the ability to see objects at very close distances. The Model 52600 is the
highest frequency ground coupled antenna available on the market today.
Note: The Model 52600 antenna cannot be used with the large, three-wheeled utility cart without
the survey wheel adaptor cable. If you intend to use the antenna with the utility survey cart,
contact your GSSI account representative to make sure that you have all of the necessary
cabling.
System Setup - Standard Settings
Note: You must follow these setup instructions exactly to use the Model 52600 antenna.
Positioning of the signal will be the last step in the process.
System Run Mode: Survey Wheel (recommended) or Continuous
Range: 8 ns
Number of Gain Points: 2
Vertical Low Pass FIR Filter: 5000 MHz
Vertical High Pass FIR Filter: 400 MHz
Vertical High Pass IIR Filter: 10 MHz
Samples per Scan: 512
Bits per Sample: 16
Transmit Rate: Set to the maximum rate allowed by the SIR System, but not higher than
200 KHz.
Scans per Second: Set to the maximum scan rate allowed by the SIR System.
Signal Position
Place the antenna on the concrete floor and use the Automatic Signal Position selection. You
may need to try this 2 to 3 times to get the system to lock on to the surface pulse. If after 3 tries
the surface pulse is not in the signal window, point the antenna into the air and again try the
Automatic Position.
To test that you have the correct position, raise the antenna off the ground and you will observe
on your system that the antenna transmit pulse will separate from the reflection from the ground.
The higher that you raise the antenna, the further apart will be the two pulses.
Manual MN31-715 Rev - 1