User's Manual

Geophysical Survey Systems, Inc. Model 4105 Antenna
System Settings and User’s Notes
MN34-559 Rev C
1
Introduction
Thank you for purchasing a Model 4105 High Frequency Air Launched Antenna (Horn). The
4105 Horn represents the state of the art in high-speed, high-resolution pavement thickness and
bridge deck analysis ground penetrating equipment. This antenna is designed for applications
requiring very high resolution survey from a moving vehicle. The unique air-launched design
allows you to survey at high speeds without causing damage and wear to the antenna.
Furthermore, it allows GSSI’s RADAN post-processing software to separate the direct-coupling
reflection from the pavement surface reflection. This allows a very accurate measure of
pavement thickness.
The 4105 has a center frequency of 2.0 GHz in air.
Please read through this manual, as well as the manual for the control unit you are using,
thoroughly before attempting to set up and collect data.
If you experience operation problems with your system, GSSI Tech Support can be reached 9am-
5pm EST, Monday-Friday, at 1-800-524-3011, or at [phone] (International).
The Difference is the Data