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8030HEPTA/GPS GPS - NTP Time Server with 2x 10/100/1000 MBit LAN Interface - V04.00
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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]
8.3.7.6 Reception Mode
In this tab the GPS reception mode is adjusted and displayed. The accuracy of the time eval-
uation is defined by the exact position calculation of the installation site. For this calculation
(3D evaluation) it is necessary to receive information from at least four (4) satellites. The signal
runtime to several satellites is determined from the calculated position and the precise second
mark is generated from their mean value.
Stationary Mode (Position Fixed)
– Standard operation
In Stationary Mode (Fixed position), the GPS receiver calculates its accuracy based on a fixed
position. If four or more satellites are received in this mode, the exact location is updated
automatically.
In this mode, a synchronization with a changing position is not possible.
Automotive (3D)
The automotive (3D) mode allows the use of system 8030HEPTA at mobile locations (except
aircraft).