VSTXUser Manual
Revision 2.38
Power Input cable (w/Control) ..................................................................................................................................... 33
4.4.2 Video Input (Connector Housing) .............................................................................................................. 35
4.4.3 Audio Input (Connector Housing) .............................................................................................................. 35
4.5 Connect External Signals (Ribbon Housing).......................................................................35
4.6 Antenna Installation ....................................................................................................................36
5Operation........................................................................................................................................38
5.1 Power Up the VSTX.......................................................................................................................38
5.2 Pre-Configure the VSTX user options ....................................................................................38
5.3 User Interfaces ..............................................................................................................................39
5.3.1 Button & LED Interface ............................................................................................................................... 39
5.3.2 Rotary/Key Interface ................................................................................................................................... 40
5.3.3 Ribbon Version.............................................................................................................................................. 41
5.3.3.1 PA AGC Signal ..................................................................................................................................... 42
5.3.3.2 RS232 RX UD....................................................................................................................................... 42
5.3.3.3 RS232 Remote Control RS-232 Tx / Rx........................................................................................... 42
5.3.3.4 USB_PWR............................................................................................................................................. 42
5.3.3.5 USB_DP/USB_DM................................................................................................................................ 42
5.3.3.6 Composite Video ................................................................................................................................. 42
5.3.3.7 +12VDC................................................................................................................................................ 42
5.3.3.8 Audio 1, Audio 2 Inputs..................................................................................................................... 42
5.4 Using the VSTXto Transmit Audio and Video Signals......................................................43
5.4.1 Select User Level Settings........................................................................................................................... 43
5.4.2 Put the unit in Transmit Mode.................................................................................................................... 43
5.4.3 Select Power Level ....................................................................................................................................... 43
5.4.4 Verify Operation ........................................................................................................................................... 43
5.5 Using the VSTXTo Transmit User Data (Ribbon version only).....................................43
5.6 Using alternate/custom controllers.......................................................................................44
5.6.1 Serial Interface Rate, Parity, and Stop Bit Specifications....................................................................... 44
5.6.2 Command and Response Packet Formats ................................................................................................ 44
5.7 Troubleshooting.............................................................................................................................45
5.8 Maintenance Information ..........................................................................................................45
1Introduction .....................................................................................................................................8
1.1 Manual Overview................................................................................................................................. 8
2VSTx Description...........................................................................................................................10
2.1 VSTx Features and Benefits..............................................................................................................10
2.1.1 VSTx Application Diagram............................................................................................................................ 11
2.1 VSTx Theory of Operation ...............................................................................................................12
2.1.1 VSTx Block Diagram..................................................................................................................................... 12
2.1.2 Power and Control Interface Connector ......................................................................................................... 14
2.1.3 Audio and Video Input Connectors................................................................................................................ 14
2.1.4 User Data Input............................................................................................................................................... 14
2.1.5 MPEG4 Encoder............................................................................................................................................. 14
2.1.6 Encryption ...................................................................................................................................................... 14
2.1.7 COFDM Modulator........................................................................................................................................ 14
2.1.8 L, S, C, and X Band Transmitter .................................................................................................................... 15
