SPX SPIDAR NIC-500s Operation Manual page 36

SPIDAR Software
Figure 4-10: NIC-500 tab in System Configuration menu
4.3.2 Antennas
The antennas tab displays the transducers or antennas connected to the NIC-500s. The screen
displayed will differ slightly depending on the type of NIC-500 used.
Antenna Positions
For all NIC-500 types, the relative position of each antenna must be entered, by inputting values
for the X Position and Y Position. The X Position is measured from left to right when looking in
the direction of travel. The Y Position is pointed along the direction of travel. These directions
are indicated on the axis graphic at the top right of the antennas page.
The user must define an origin (0,0), however this point is completely arbitrary. For Noggin
systems, it is usually the center of one of the Noggins (as shown in Figure 4-11) and every other
system is relative to that. For pulseEKKO PRO antennas, it could be the center of a transmitter,
with all other transmitters and receivers relative to that. Alternatively, it could be the geometric
center of the cart. The choice is up to the user. Remember to follow a Cartesian coordinate
system, so some numbers may be negative (i.e., to the left of the system or behind the system).
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