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GPS Network Time Server
TECHNICAL: 0118 965 6000
Start-Up
Preliminary connections
Before starting up the GPS Network Time Server, the following operations should be
performed:
•
Place the system so that the lower and upper cooling air inlets are not obstructed.
•
Place the GPS antenna outdoor in a position such that it views the sky directly over
360 degrees (e. g. at the top of an antenna mast).
CAUTION
The GPS Network Time Server is designed to operate exclusively with the
recommended GPS antenna. Connecting another antenna can turn the system
inefficient, or even damage it irreversibly.
•
Connect the antenna to the Antenna connector. For the GPS signals to be received
correctly, the antenna-cable-lightening arrester assembly should have a gain in the
range from 3 to 33 dB.
Typical antenna mounting:
G1 + G2 + G3 = 40 dB - 15 dB - 1 dB = 24 dB
We actually have:
3 dB < G1 + G2 + G3 = 24 dB < 33 dB
