14
3 System set up
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In this chapter all connections to make prior operation of the MIRA system is explained. The MIRA
system is developed to be rough and stand heavy weather conditions. However, it is advisable to
make all connections within the antenna box in dry conditions, to prevent water in the electrical outlets.
An overview on the main connectors on the MALÅ standard antenna boxes is shown in Fig. 3.1.
1. Power supply from the battery box. 12V DC
2. Connector for the Spray paint system.
3. Connector for the remote control for the
Spray paint system.
4. Connectors for power (12V DC) of extra
equipment as radio link and prism for
positioning system.
5. Connector for data communication, Ethernet
cable.
Note!
This should be crossed to the
control unit and straight from the antenna box
to the computer.
6. Connector for encoder wheel cable.
Fig. 3.1
. The main connectors on the MALÅ standard antenna box.
3.1 Antenna array
The separate receiver and transmitter antennas are placed in the antenna box, according to the
configuration chosen. See Fig. 3.2. To each antenna the antenna cables are connected, three to the
receiver (power, trig and data) and two to the transmitter (power and trig) antennas. The standard
configuration of a 16-channel set up is shown in Fig. 3.3.
Fig. 3.2.
Examples of antennas in the antenna box and the connection to the coaxial cables and
power supply. The receiver antennas are seen at the bottom and transmitter antennas, at top. In this
example 400 MHz antennas are seen.
Receiver:
Data cable
Rx trig cable
Power cable
Transmitter:
Tx trig cable
Power cable
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2
3
4
5
6
