Nautel Exporter Plus, Техническое руководство по эксплуатации, Страница: 88 / 186

Exporter Plus Technical Instruction Manual Operating
Page 8-18 Issue 1.0 2020-05-05
To change the GPS time status, press the checkmark (accept) button to enter the editing screen
shown in Figure 8.30 .
Figure 8.30: Use GPS Time Editing Screen
Use the up and down buttons to highlight
Yes
or
No
. Press the accept or cancel button to enter
the Save/Cancel screen (see Figure 8.4 on page 8-5 ). Save or cancel as desired. Selecting
Yes
enables the use of GPS time. The Exporter Plus will assert a 30-second power-down delay
when a system restart occurs, eliminating the need for a manual 30-second power-down.
Selecting
No
disables the use of GPS time and bases the transmitted time entirely on the
Exporter Plus’ system clock. Also, selecting
No
causes all GPS related alarms to be muted and
decreases the 30-second restart delay.
Setting leap seconds
HD Radio transmits GPS time. To convert to UTC (Coordinated Universal Time) requires a
leap seconds setting (see
http://www.iers.org/
for more information). Enter the leap second
adjustment for the time setting by selecting
Leap Seconds
from the
DATE & TIME
menu (see
Figure 8.31 ).
Figure 8.31: Leap Seconds Screen
To change the leap seconds value press the checkmark (accept) button to enter the editing
screen shown in Figure 8.32 .