Nautel NV15, Operation And Maintenance Manual

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NV15/NV20 Operations and Maintenance Manual Operating the transmitter
Page 2-102 Issue 3.2 2013-10-01
•
Remote Name:
Displays the host name of the referenced time source. An asterisk (*) in the
first column marks the reference time source that is currently preferred by the NTP daemon.
A ‘+” character in the first column marks high quality candidates for the reference time that
could be used if the currently selected reference becomes unavailable.
•
IP
: Displays the IP address associated with the
Remote Name
. In some cases the
Remote
Name
could be the IP address.
•
Delay:
Displays the round-trip delay (in ms) of the time queries.
•
Offset:
Displays the difference (in ms) between the reference time and the system clock.
•
Jitter:
Displays the magnitude of jitter (in ms) between several time queries.
Managing NTP Servers
The
Manage Servers
section displays the NTP server files that have been added. You can
Add
to the
list of NTP servers or
Delete
a selected NTP server from the list.
Audio low thresholds
This setting provides adjustable thresholds for the main audio source and SCA audio source
(configurable timeout and trip level). These thresholds determine the limit for an associated low
audio alarm to be activated. If the applicable audio source (main or SCA) level falls below the
Trip
Leve
l setting (default is -22.5dB) for longer than the
Timeout
setting (default is 20 sec.), an alarm will
activate in the
Status
and
Logs
pages. When the audio source level increases above the
Trip Level
,
the alarm will clear. To disable the low audio alarm, set the associated
Trip Level
to -100dB. Press
Apply
to save the change or
Cancel
to discard changes.
Figure 2.78: User Settings - Audio Low Thresholds
Valid range 0 - 600 s
Valid range -100 - -3 dB
Valid range 0 - 600 s
Valid range -100 - -3 dB