Meinberg LANTIME, Operating Instructions Manual

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Menu SV CONSTELLATION
The SV constellation menu gives an overview of the current satellites (SVs) in
view. The second line of the display shows the number of satellites with an elevation
of 5° or more (In view), the number of satellites that can be used for navigation
(Good) and the selected set of satellites which are used to update the receiver position
(Sel).
SV CONSTELLATION
SVs in view: 8
Good Svs: 8
Sel: 2 8 26 19
The precision of the computed receiver position and time is affected by the geometric
constellation of the four satellites being used. A set of values called dilutions of
precision (DOP) can be computed from the geometric constellation. Those values can
be displayed in a submenu of the SV constellation menu. PDOP is the position
dilution of precision, TDOP is the time dilution of precision, and GDOP, computed
from the others above, is the general dilution of precision. Lower DOP values mean
more precision.
DILUTION OF PREC
PDOP: 2.32
TDOP: 1.12
GDOP: 2.58
Menu SV POSITION
This menu gives information on the currently selected satellite (SV). The satellite’s
ID number, its elevation, azimuth and distance from the receiver position reflect the
satellite’s position in the sky whereas the Doppler shows whether the satellite is
coming up from the horizon (Doppler positive) or going down to the horizon
(Doppler negative). All satellites in view can be monitored by using the NEXT key.
SV 2 INFO:
El:36° Az: 159°
Dist: 22602 km
Dopp: +2.555 kHz
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