Operations and Maintenance Manual
Table Of Contents
- Release control record
- Section 1: Description
- Section 2: Operating the transmitter
- User Interfaces
- Viewing Transmitter Log
- Viewing AUI Tool Menu Panels
- Viewing Real-Time Meters
- Managing Presets
- Enabling Remote Control
- Resetting Alarms
- Viewing Transmitter Status
- System Settings
- System Settings - Front Panel UI
- Setting User Accounts
- User Settings - AUI
- User Settings - Front Panel UI
- Configuring Remote Inputs and Outputs
- Scheduler
- Audio Player
- Enabling and Operating the Orban Audio Processor
- Figure 2-1 : VS Transmitter Front Panel Display Menu Tree (Sheet 1 of 2)
- Figure 2-2 : VS Transmitter Front Panel Display Menu Tree - Edit Presets (Sheet 2 of 2)
- Figure 2-3 : VS Transmitter AUI Flow Diagram
- Section 3: Routine maintenance
- Section 4: Non-standard maintenance
- Section 5: List of terms
VS300 Operations and Maintenance Manual List of terms
Page 5-2 Issue 10.0 2019-01-18
Preset. A setting that controls power level, frequency and audio parameters. The VS300 allows
you to pre-program multiple presets.
PWB. Printed Wiring Board.
Shutback. A complete, but temporary loss of RF output power, caused by any one of a
variety of faults, including high VSWR, high reject load power, RF drive failure, or an open
external interlock.
Shutdown. A complete and permanent loss of RF output power. Typically follows repeated
cutback, foldback or shutback events.
SPI. Serial Peripheral Interface. A synchronous serial data link standard that operates in full
duplex mode. Devices communicate in master/slave mode where the master device initiates the
data frame. Multiple slave devices are allowed with individual slave select (chip select) lines.
Also referred to as a "four wire" serial bus.
Surge protection panel. An electrical panel that protects equipment from electrical surges in
the ac power supply, antenna or site ground caused by lightning strikes.
VSWR. Voltage standing wave ratio. This is an expression of the ratio of forward voltage to
reverse voltage on the feedline and antenna system. An ideal VSWR of 1:1 provides maximum
transmitter-antenna efficiency.