Novatel 01020347, User Manual

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14 WAAS GUS Signal Generator User Guide Rev 1
Chapter 1 Introduction
A quadrature channel can be added to the L1 and L5 signals within the Signal Generator. When used, the normal
signal is referred to as the I channel, and the quadrature signal is referred to as the Q channel. See also
Section
5.1.3.2, Control Command starting on Page 28 .
Figure 3 shows the interfaces of the Signal Generator.
Figure 3: Interface Block Diagram
After a cold start or after a power reset, the Signal Generator performs an Initiated Built-in Test (IBIT) memory
self-test and internal calibration.
Provided a 1PPS reference source is made available to the Signal Generator, it can receive WAAS messages from
the Safety Computer within 2 minutes of powering up.