12
The first three half-periods of each line (on the figure 3.3.2 is allocate by a dotted frame in the
image of wave form) as so called the signal of direct transmitting. The signal of direct transmitting is
not to go to the scanning zone, it is to go directly – from transmitting antenna unit to the receiving and
as a rule, it has the biggest amplitude in the current line. The top area of noise is above the signal of
direct transmitting. The normal position of the signal of direct transmitting – figure 3.3.2.
If after switching on the device, the picture signal of the direct transmitting is below normal
position, using the following buttons “
↑
”
и
“
↓
” it is necessary to modify its position.
By the buttons «
←
»
и
«
→
» it is possible to change the contrast of radarogram (For additional
information use the program GeoScan32 Users manual).
3.4 Set
parameters of scanning
1.
Press the key “Esc” to select the measurements mode menu (figure 3.4.1)
Figure 3.4.1. Measurements mode menu
2.
Press the functional key «4» («Parameters») to select the options menu of parameter measurements
settings. (figure 3.4.2).
Figure 3.4.2. Menu of parameter measurements settings.
