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 Operating the transmitter
Issue 10.0 2019-01-18 Page 2-61
Main audio - additional configuration settings:
– Audio Player Source: applies to Audio Player -> AES 2 source only; select the
desired audio playlist.
– Analog Level: applies to Analog Left/Right source only; enter value between -12
and +12 dBu, which represents the input voltage level that yields 100% modulation
(Default is 0.0 dBu).
– Digital Level: applies to MPX Over AES, AES/EBU 1 and Audio Player -> AES 2
sources only; enter value between -25.5 and 0 dBFS, with a typical setting of
-4 dBFS (100% modulation value).
– MPX Level: applies to MPX source only. Set this parameter level in Vpp (typically
3.5 Vpp - 100% modulation value). The allowable range for this setting is between
1-5 Vpp.
– Audio Mode: applies to Analog Left/Right, AES/EBU 1 and Audio Player ->
AES 2 sources only; select Mono L, Mono R, Mono L+R or Stereo (selecting
Stereo applies a 19 kHz pilot).
– 15kHz Lowpass Filter: applies to Analog Left/Right, AES/EBU 1 and Audio
Player -> AES 2 audio sources only; select Enabled (applies 15 kHz low-pass filter
to audio input) or Disabled.
– Preemphasis: applies to Analog Left/Right, AES/EBU 1 and Audio Player ->
AES 2 audio sources only; select 0 us, 25 us, 50 us or 75 us.
– Main Audio Gain Adjust: applies to Analog Left/Right, AES/EBU 1 and Audio
Player -> AES 2 sources only; allowable range is -20 to 10 dB. This configuration
setting will increase the incoming signal level and yield a proportional increase in %
modulation.
– Audio Backup: When you set
Audio Backup
to
Enabled,
you can select a backup
Audio Source
and edit various parameters for the backup audio similarly to the
main audio described above. The backup audio source, if enabled and present, will
replace the main audio source if the main audio level is less than its user-determined
trip threshold (see “User Settings - Front Panel UI” on page 2-153). The main audio
source will be restored as the active source if it returns and is present for at least
one second.
Note:
AES2 may not be used as a backup source for AES1 when the internal exciter is
used.