Nautel NX15, Operation And Maintenance Manual

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NX15/NX25 Operations and Maintenance Manual Operating the transmitter
Page 2-100 Issue 6.0 2019-01-31
RF Monitor Level
The
RF Monitor Level
page allows you to set values for the
Gain at Full Power
(in dB) (see
Figure 2.72 ) 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 2.72 on page 2-101 ).
NOTE:
You can achieve an RF monitor level of 5 V rms for power levels as low as 10% of rated
power for NX25 or 17% of rated power for NX15. Below 10% (for NX 25) or below 17% (for
NX15) rated power, the maximum achievable RF monitor level may be lower than 5 V rms.
Figure 2.72: 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.