Meinberg LANTIME, Operating Instructions Manual, Page: 40 / 153

SETUP INITIAL POSITION
When the receiver is primarily installed at a new location far away from the last
position saved in the receiver’s memory the satellites in view and their Doppler will
differ so much from those expected due to the wrong position that GPS167 has to
scan for satellites in Warm Boot mode. Making the new approximately known
position available to the receiver can avoid Warm Boot and speed up installation.
SETUP
INITIAL POSITION
INITIAL POSITION
Lat: 51°59’00”N
Lon: 9°13’34”E
Alt: 187 m
SETUP INITIAL TIME
If the receiver’s on-board real time clock keeps a wrong time the receiver is unable
to compute the satellites´ correct elevation angles and Doppler. This submenu enables
the user to change the receiver’s system time for initialisation. After the receiver has
locked, its real time clock will be adjusted using the information from the satellites.
When the antenna is disconnected it is possible to set the LANTIME with any time.
Note that the NTP will not synchronize to a GPS losing its reception or if the
deviation to the system time is larger than 1024 seconds. In this case the menu
IGNORE LOCK has to be active. After setting the clock manually the system should
be restarted (REBOOT).
SETUP
SET INITIAL TIME
SET INITIAL TIME
MESZ
Date: 05.06.2001
Time: 12:00:00
IGNORE LOCK
Enabling this menu lets the user run the LANTIME without antenna. Normally the
NTPD loses synchronisation with the GPS when the antenna is disconnected or the
GPS did not receive enough satellites (red FAIL LED is turned on). When IGNORE
LOCK is enabled the status information from the GPS is fixed to SYNC. So it is
possible to set the NTPD with any other time entered by the SETUP INITIAL TIME
menu. Usually this menu should be disabled. If this option is enabled an "*" will be
shown behind the time string in the root menu.
SETUP
IGNORE LOCK
SETUP
IGNORE LOCK
disabled
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