Chapter 2 | Receiver Specifications |
digital converter, a
The digital section performs the translations and calculations necessary to convert the IF analog signals into usable position and status information. It also handles all I/O functions, including the auxiliary strobe signals, which are described in detail in Section 3.4, Connectors and Connector Pins Assignment starting on Page 22. For input and output levels please see Appendix A, Technical Specifications, starting on Page 44.
2.3Enclosure and Wiring Harness
An enclosure is necessary to protect the GPSCard from environmental exposure and RF interference. If a
2.4GPS Antenna
The purpose of the GPS antenna is to convert the electromagnetic waves transmitted by the GPS satellites into RF signals. An active or passive GPS antenna may be used in the operation of the receiver. NovAtel’s active antennas are recommended.
2.4.1Optional LNA Power Supply
Power for the antenna LNA is normally supplied by RF cable to J2, see also Section 3.4.3, RF Connector (J2) starting on Page 23. However, if a different type of antenna is required that is incompatible with this supply, connect an external power source to the receiver.
External LNA power is not possible with a
2.5Principal Power Supply
A single external power supply capable of delivering 5 V is necessary to operate the receiver. See Appendix A, Technical Specifications, starting on Page 44 for details.
CAUTION: If the voltage supplied is below the minimum specification, the receiver will suspend operation. If the voltage supplied is above the maximum specification, the receiver may be permanently damaged, voiding your warranty.
2.6Data Communications Equipment
A PC or other data communications equipment is necessary to communicate with the receiver and, if desired, to store data generated by the receiver.
18 | SUPERSTAR II User Manual Rev 3 |
