THEORY OF OPERATION (TRANSCEIVER) 4.1 - 1
CHAPTER 4.1
THEORY OF OPERATION (TRANSCEIVER)
Block Diagram and Overview
The main Digital/RF block contains the following five sections:
• Receiver Section
• Transmitter Section
• Frequency Generating Section (Synthesizer)
• Controller Section
• GPS sub module
An overview and a detailed description of these sections is provided in the following paragraphs.
Figure 4.1-1 General Block Diagram
Synthesizer
Transmitter
Receiver
Digital Block
Audio
Control Head
or
Expansion Head
MAIN BOARD
Antenna
Switch
Battery
DC
Block
GPS
6866539D31.book Page 1 Tuesday, March 20, 2007 6:32 PM
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