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 2-43
AM-AM and AM-PM correction screens
Available only when the transmitter is used with a VSHD exciter. When the transmitter is
operating with digital carriers, the exciter linearizes the transmitter’s RF drive signal by
performing adaptive pre-correction. There are two correction parameters -
AM-AM Correction
(see Figure 2.31) and
AM-PM Correction
(see Figure 2.32 on page 2-44), which can be viewed as
instrument panels.
Figure 2.31: AM-AM Correction
AM-AM correction
This panel displays the amplitude correction being applied to the magnitude signal. The x-axis
represents the signal amplitude and the y-axis represents the gain correction applied for a given
amplitude value.
Click on the panel to display a cursor in the approximate area. The cursor position (gain and
LUT index) is noted in the upper, right-hand corner of the panel. Click in other areas of the
instrument to provide a coarse adjustment of the cursor position.
Use the left and right buttons as fine adjustments.
Use the up or down button to maximize (if it was minimized) or minimize (if it was
maximized) the panel size.