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6842 GPS Slim Line System - V09.01
hopf
Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: +49 (0)2351 9386-86 • Fax: +49 (0)2351 9386-93 • Internet: http://www.hopf.com • E-Mail: [email protected]
4.1.1.4 Input Position
The geographical position of the equipment is entered with this function. This function is
helpful during the first commissioning and shortens the first synchronization of the GPS
receiver.
Selection frame:
S E T P O S I T I O N
Y / N _
Input frame:
L T .
N 5 1
°
1 2
,
3 6 5 1
'
L N .
E 0 0 7
°
3 7
,
8 4 2 6
'
The entries for the latitude and longitude positions take place in degrees and minutes.
The operational sign for the degrees of latitude -
LT.
is:
N
Northern hemisphere
S
Southern hemisphere
and for the degrees of longitude -
LN.
:
E
East of the Null Meridian (Greenwich)
W
West of the Null Meridian (Greenwich)
The latitude position is entered first under
PGG°MM,SSSS
, where the meanings are as
follows:
P
N or S, North or South
GG
Degrees
of
Latitude
from
00 - 89
MM
Minutes
of
Latitude
from
00 - 59
SSSS
Minutes of
Latitude
decimal places
0000 - 9999
There then follows the entry of the longitude position under
pGGG°MM
,
SSSS
, where the
meanings are as follows:
p
E or W, East or West
GGG
Degrees
of
Longitude
from
000 - 179
MM
Minutes of
Longitude
from
00 - 59
SSSS
Minutes
of
Longitude
decimal places 0000 - 9999
The position of
hopf
Elektronik GmbH is given in the above example.
The entry is completed by pressing the
ENTER
key.
In order to speed up the synchronization of the GPS receiver it is sufficient for the position to
be input to an accuracy of 1-2 degrees (without minutes or decimal places).
If the position is unknown
0
should be entered in all places.
If the position is not known during commissioning and the antenna position
is adverse, the GPS evaluation should be changed from Position-fix to 3D
(
Chapter 4.1.4.4 3D / Position-fix GPS Reception and Synchronization
Mode
). Otherwise this may lead to the
output of an imprecise time
when
synchronizing with less than four satellites.
After calculating the actual position by means of the clock system, the GPS
evaluation can be changed back to Position-fix.
