Sensors & Software pulseEKKO, Product Manual

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System Configuration
106
6.1 GPR Parameters
For each parameter described below, there is a Reset to Defaults button, which will reset that
parameter to the recommended value.
6.1.1 Frequency
Pressing Frequency will take the user to a screen where they can select the frequency of the
antennas/transducers they are using. Deciding which frequency to use for a survey depends on
the objectives of the survey. As frequency decreases, the depth of investigation generally
increases but spatial resolution decreases. Therefore, the ideal survey will be one that uses the
highest frequency that adequately penetrates to the target depth.
The following table offers a guide to frequency selection. The values are based on practical
experience and should be used as an approximation only.
Center Frequency (MHz) Depth (m)
1000 0.5
500 1.0
250 2.0
100 5.0
50 10
25 30
12.5 50
The list of possible frequencies is shown in Figure 6-2.
Figure 6-2: Selecting the correct frequency