User's Manual

Geophysical Survey Systems, Inc. Model 5104 Antenna
System Settings and User Notes
Model 5104 Antenna
The Model 5104 antenna has greatly improved resolution performance over previous GSSI
mid-frequency antennas, such as the Model 3105 (300 MHz). The Model 5104 can be used in
continuous, survey wheel or static stacking modes. The Model 5104 has a center frequency of
275 MHz when measured in air.
System Setup - Standard Settings
Shallow Profiling: Range/Depth is approximately 5m (15 ft) assuming a dielectric constant of
9.
Setup Mode: Manual
System Run Mode: Survey Wheel (recommended) or Continuous
Range: 100 ns
Number of Gain Points: 5
Vertical Low Pass Filter: 800 MHz
Vertical High Pass Filter: 30 MHz
Samples per Scan: 512
Bits per Sample: 16
Scans per Second: Set to maximum scan rate allowed by the SIR System used..
Deep Profiling: For approximately 8 m (25 ft) with a dielectric of 9.
Setup Mode: Manual
System Run Mode: Survey Wheel (recommended) or Continuous
Range: 175 ns
Number of Gain Points: 5
Vertical Low Pass Filter: 800 MHz
Vertical High Pass Filter: 30 MHz
Samples per Scan: 1024
Bits per Sample: 16
Scans per Second: Set to maximum scan rate allowed by the SIR System used..
Manual MN30-192 Rev - 1