Nautel NX5 AM, Руководство по эксплуатации и техническому обслуживанию

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NX5 OPERATION & MAINTENANCE MANUAL OPERATING THE TRANSMITTER
PAGE 3.2.142 VERSION 0.1 2015-08-01
RF Monitor Settings
NOTE
: You can also adjust the RF monitor gain using the remote AUI (see RF Monitor Level, on page
3.2.131 ).
The
RF Monitor
menu allows you to set values for the
Gain at Full Power
(in dB) 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). From the front panel UI, you can establish the full-scale monitor gain and the power
parameter (forward or reflected power) for monitoring. To view the
RF Monitor
menu, select
User
Settings -> RF Monitor
from the
Main Menu
(see Figure 3.2.125 ).
Figure 3.2.125: RF Monitor Menu
Use the up and down buttons to move the cursor to the desired line item and then press the right
button to enable editing.
Figure 3.2.126 shows the two editing screens for the
RF Monitor
menu.
Within either of the editing screens, use the up and down buttons to edit the setting. Press the accept
(checkmark) button to save the change. Press cancel (
X
) to discard changes and return to the previous
menu.
Figure 3.2.126: RF Monitor Editing Screens
Select a gain between 0 and 21 dB, in 0.01 dB increments,
that corresponds to a full-scale reading. Press the cancel (
X )
button to discard changes and return to the previous menu.
The current gain value is shown in parentheses 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.
Select the parameter for monitoring on the RF Monitor
output - Forward Power or Reflected Power. Press the cancel
(
X ) button to discard changes and return to the previous
menu.