LDI Intellectual Property.
Not for secondary distribution or replication, in part or entirety.
DIGISONDE-4D
SYSTEM MANUAL
VERSION 1.2.11
4-2 SECTION 4 – HARDWARE DESCRIPTION
RF POWER AMPLIFIER CHASSIS ......................................................................................................... 4-25
RF Amplifier Card ................................................................................................................................ 4-25
Half-Octave Filter (HOF) Cards (2 per system): .................................................................................. 4-26
CHAPTER 3 COMMERCIAL HARDWARE ............................................................................ 4-28
CARDS AND ASSEMBLIES SUPPLIED FROM OTHER MANUFACTURERS ...................................... 4-28
CONFIGURING GPS FOR OPERATIONS WITH DIGISONDE-4D ........................................................ 4-28
List of Figures
Figure 4-1: Block Diagram of Digisonde-4D 4-4
Figure 4-2: Main Chassis of the Digisonde-4D 4-5
Figure 4-3: Power Amplifier Chassis of the Digisonde-4D 4-5
Figure 4-4: Digisonde-4D Front View 4-6
Figure 4-5: Digital Transmitter Block Diagram 4-9
Figure 4-6: Phase-Modulated 16-Chip Code Sequence with the Sinusoidal Shape of the Chips Achieves Narrower
Transmission Bandwidth 4-10
Figure 4-7: Transmitter PCB 4-11
Figure 4-8: Digital Receiver Block Diagram 4-13
Figure 4-9: Block Diagram of a Single Channel of the GC5016 Chip 4-13
Figure 4-10: Digital receiver PCB 4-14
Figure 4-11: Tracking Bandpass Filters Suppress Out-of-Band Interferers 4-15
Figure 4-12: Tracking Bandpass Filter PCB 4-16
Figure 4-13: Preprocessor Card Block Diagram and Operations 4-17
Figure 4-14: Preprocessor PCB 4-18
Figure 4-15: General Diagram of BIT Signal Sampling 4-19
Figure 4-16: BIT Card 4-20
Figure 4-17: Antenna Switch Block Diagram 4-21
Figure 4-18: Polarization Switch Block Diagram 4-22
Figure 4-19: Power Distribution Card Block Diagram (System Power) 4-23
Figure 4-20: Power Distribution Card Block Diagram (BIT Card Interface) 4-24
Figure 4-21: RF AMP Block Diagram 4-25
Figure 4-22: HALF OCTAVE FILTER (HOF) Block Diagram 4-27
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General