Vega DSP-223, Technical Manual

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Tone Remote iii
4.2.2.10 Set Gains Button .................................................................................. 13
4.2.2.11 Morse Code Station Identifier Setup..................................................... 14
4.2.2.12 Save and Load Buttons ........................................................................ 14
4.2.2.13 Send and Receive Configuration from DSP-223 .................................. 14
4.2.2.14 Radio TX Audio Filters.......................................................................... 15
4.2.2.15 DSP-223 Audio Block Diagram............................................................. 16
4.2.2.16 DSP-223 Frequency Response ............................................................ 16
4.3 DTMF Responder Functions......................................................................... 18
5 Theory of Operation............................................................... 19
5.1 DSP-223 Audio Input Paths.......................................................................... 19
5.2 DSP-223 Audio Output Paths ....................................................................... 19
5.3 Troubleshooting Aid...................................................................................... 19
6 Loading the DSP-223 Operational Software ........................ 20
7 Specific Radio Control........................................................... 20
8 Pin out and Jumper Settings Quick Reference Table......... 21
9 Schematics and Parts Lists .................................................. 22
9.1 PCB P/N 750561 Revisions A to E ............................................................... 22
9.2 PCB P/N 750561 Revision F ........................................................................ 23
9.3 PCB P/N 750561 Revision G........................................................................ 24
9.4 PCB P/N 750561 Revision H ........................................................................ 25
10 Warranty, Service, Repair, and Comments........................ 26
11 DSP-223 Specifications ....................................................... 27
Table of Figures
Figure 1 DB25 Rear Connector Pin-out........................................................................... 2
Figure 2 Line Connector Pin-out ..................................................................................... 2
Figure 3 6 Pin Radio Connector Pin-out.......................................................................... 3
Figure 4 Windows Programming Main Screen ................................................................ 7
Figure 5 Serial Communications Port Screen ................................................................. 7
Figure 6 Digital Output Chart......................................................................................... 11
Figure 7 CTCSS Selection Chart .................................................................................. 12
Figure 8 Digital 4 Setup Screen .................................................................................... 12
Figure 9 Digital 5 Setup Screen .................................................................................... 13
Figure 10 Gain Settings................................................................................................. 13
Figure 11 Morse Code Encoder Setup Screen.............................................................. 14
Figure 12 TX Audio Parameters Screen........................................................................ 15
Figure 13 Software Audio Path Block Diagram ............................................................. 16
Figure 14 Tx Frequency Response With No Additional Filtering ................................... 16
Figure 15 Tx Frequency Response With 3.5KHz Low Pass Filter................................. 17
Figure 16 Tx Frequency Response With 3.5KHz Filter and Pre-Emphasis ................... 17