Service And Troubleshooting; Theory Of Operation - Winegard WV750 Product Manual

8. Service and Troubleshooting

8.1 - Theory Of Operation

Theory of operation describes the logic and functionality of the Winegard WV750
Satellite Internet System and is pertinent to all antenna and controller models.
8.1.1 - Antenna Drive Mechanism
The Winegard WV750 Satellite Internet Antenna Systems have been modularly
designed for easy troubleshooting and repair.
8.1.2 - Modem and Power
The WV750 Antenna System requires a Viasat internet modem and suitable 110/220
volt AC power source to operate. The modem is required to power the TRIA.
8.1.3 - Cabling and Communication
The modem is connected to the Controller (IDU) through an Ethernet cable and to the
antenna system through an RG6 (or equivalent) coaxial cable.
The RG6 cables are terminated with environmentally sealed F-connectors.
As mentioned above, the modem supplies the DC voltage necessary to power the TRIA.
The IDU supplies 48 volts DC to the antenna's Outdoor Unit (ODU) through an RG6 (or
equivalent) cable terminated with F connectors.
Communication between the IDU and the ODU are carried over the antenna's power
cable utilizing Bluetooth Protocol. This cable is terminated with F connectors.
8.1.4 - Sensors
The system is designed with an onboard GPS receiver to determine antenna location
and heading. These coordinates are utilized when calculating initial elevation angles.
The pointing angles are also compensated by pitch and roll sensors.
The software provides for input of manual heading information. This override is called
Fixed Heading Mode and is not recommended.
8.1.5 - Software
There are several safety features built into the antenna system. These features
automatically stow the antenna if certain criteria are met. These include loss of receive
signal lock and detected motion (pitch, roll, velocity).
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