Table of Contents
Section 1
1.0 GM338 Model Chart.............................................................................................1-1
Section 2
1.0 Introduction ..........................................................................................................2-1
2.0 UHF (403-470 MHz) Receiver .............................................................................2-1
2.1 Receiver Front-End ........................................................................................2-1
2.2 Front-End Band-Pass Filters & Pre-Amplifier .................................................2-2
2.3 First Mixer and 1st Intermediate Frequency (IF) ............................................2-2
2.4 2nd Intermediate Frequency (IF) and Receiver Back End .............................2-3
3.2 Pre Driver Stage .............................................................................................2-4
3.3 Driver Stage....................................................................................................2-4
3.4 Final Stage .....................................................................................................2-4
3.6 Antenna Switch...............................................................................................2-5
3.7 Harmonic Filter ...............................................................................................2-5
3.8 Power Control.................................................................................................2-5
4.0 Frequency Synthesis ...........................................................................................2-6
Section 3
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