User Manual

Geophysical Survey Systems, Inc. Model 4108F Antenna
System Settings and User’s Notes
MN34-550 Rev A
2
Mounting and Data Collection Recommendations
Mounting Specifications:
The Model 4108F antenna mounting hardware includes 2 square fiberglass tubes and 2 gusset
plates. Figure 1 shows a typical 4108 setup on the back of GSSI’s van.
Figure 1: Typical Model 4108F setup showing fiberglass rods and gusset plates.
The vertical metal pieces attached to the gusset plates are sold separately.
It is recommended that the user follow the following specifications for mounting the
4108F antennas:
(1) Recommended antenna bottom height above pavement with vehicle stationary: 18-20”
(46 – 51 cm)
(2) Recommended closest distance between antenna and significant metal (vertical metal
rods or the vehicle’s bumper) should be at least 40” (1 m).
(3) Black transducer cable should be fastened to one of fiberglass rails to prevent cable
movement.
(4) Excessive antenna bouncing should be minimized. The GSSI van setup includes 4
adjustable straps that minimize vertical and horizontal antenna movement, especially on
bumpy roads.
18-20” (46-51 cm)
40” (1 meter)
Transducer cable fastened to rail
Adjustable straps