Nautel NX25, Operation And Maintenance Manual

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NX300 Operations and Maintenance Manual Operating the transmitter
Page 2-94 Issue 3.0 2012-11-01
3. Select
Frequency
in the
Sync Enable
drop-down menu.
4. Select the appropriate source (
10MHz Sync Input
or
GPS Sync Card
) in the
Sync Source
drop-down menu.
RF Monitor Level
The
RF Monitor Level
page allows you to set values for the
Gain at Full Power
(in dB) (see
Figure 2.70 ) on the amplifier that drives the
RF Monitor
output. The RF monitor is factory set to
provide a level of 5 V rms into 50 ohm (27 dBm).
The
Current Gain
value is shown for reference. Increase the gain to increase the RF monitor output
level; decrease the gain to decrease the RF monitor output level. The transmitter will attempt to
maintain this level at all power set points (see
Figure 2.70 on page 2-94 ):
Figure 2.70: System Settings - RF Monitor Level
Procedure to set the RF monitor level:
1. Select the
RF Monitor Level
option from the left side of the
System Settings
page to
open a related window on the right side of the page.
2. Observe the
Current Gain
value and its corresponding RF monitor level (measured). Enter
the new
Gain at Full Power
value to increase or decrease the RF monitor level.
3. Press
Apply
. Verify the measured RF monitor level is as desired. Readjust as necessary.