Codan Radio Communications VT-3H040-S-HSO User Manual

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Transmitter Main Board Instruction Manual     IM20-MT3TXMN

LIST OF FIGURES

LIST OF TABLES

Figure 1 Audio Processor Block Diagram ........................................................................2-17
Figure 2 Interconnection Pin Layout Diagram ..................................................................2-18
Figure 3 Microphone and Balanced Input Circuitry, V2.3 Audio Processor .....................2-23
Figure 4 Limiter and Splatter Filter, V2.3 Audio Processor...............................................2-24
Figure 5 Bypassing Compression, V2.3 Audio Processor ................................................2-25
Figure 6 TX Audio Control Circuitry, V2.3 Audio Processor ...........................................2-26

Table 1

Mode Condition Table..........................................................................................2-4

Table 2

Standby Mode Selection Table.............................................................................2-5

Table 3

FM Audio Processor Total Current Consumption................................................2-5

Table 4

Time-Out-Timer Settings......................................................................................2-9

Table 5

MT-3 Audio Processor Current Consumption. ..................................................2-11

Table 6

Bandwidth Table.................................................................................................2-15

Table 7

Factory Configuration ........................................................................................2-18

Table 8

Turn on Time......................................................................................................2-19

Table 9

Transmitter Main Board Jumpers .........................................................................3-3

Table 10 Main Board Test Points ........................................................................................3-4
Table 11 Waveform Levels ..................................................................................................4-1
Table 12 Interconnection Pin Definitions ............................................................................6-1
Table 13 Audio Processor Version 1.8 Jumper Settings......................................................7-2
Table 14 Jumper and Select Values Table - Wideband Synthesized Transmitters ...............7-3
Table 15 Jumper and Select Values Table - Narrowband Synthesized Transmitters ............7-4
Table 17 Jumper and Select Values Table - Wideband Crystal Transmitters .......................7-6
Table 18 Jumper and Select Values Table - Narrowband Crystal Transmitters....................7-7
Table 19 Jumper and Select Values Table - LTR

TM

 Modulated Transmitters .......................7-8