Nautel VS300, Руководство по эксплуатации и обслуживанию

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VS300 Operations and Maintenance Manual Operating the transmitter
Issue 8.0 2016-03-01 Page 2-141
External 10MHz
This setting (see Figure 2.116 ) allows users to employ the clock signal from a connected external
10 MHz source in FM mode; the setting is unused in HD or FM+HD. When
No
is selected, the
external 10MHz source will be ignored and the exciter's internal clock signal will be used. If
Yes
is
selected, disconnecting the external 10 MHz source will result in constant "No External 10MHz"
alarms and logs.
Figure 2.116: User Settings - External 10 MHz (Default shown)
External 10 MHz Input - Using the AUI
You can view the selection buttons for the external 10 MHz input on the AUI’s
External 10 MHz
screen (see Figure 2.116 ) by selecting
External 10 MHz
from the
User Settings
options.
Yes
and
No
buttons for
Use External 10MHz
will be displayed. Click
Yes
if you are using an external 10 MHz
signal. Click
No
if not. Click
X
in the upper, right corner to close this page and return to the home
page.
External 10 MHz Input - Using the Front Panel
To view the enable/disable screen for the external 10 MHz input (see Figure 2.117 ), select
User
Settings -> Ext. 10 MHz Inp
from the
Main Menu
.
Note:
The exciter will automatically use an external 10 MHz reference signal if connected, in any HD
mode.