Page 6 1 Meinberg GPS Antenna/Converter Unit
1.3 Features of GOAL
GOAL is a GPS Optical Antenna Link set for connect-
ing a Meinberg GPS antenna to each Meinberg GPS
receiver via one optical multimode ber. The module
GOAL/R is to connect to the receivers antenna input
either directly on the connector, using an adaptor, or,
e.g. for space reasons, via a patch cable.
The module GOAL/A is to mount indoor, connected to
the Meinberg antenna via a coaxial cable. Both mod-
ules are linked to each other via a single GI50/125
µ
m
or GI62,5/125
µ
m multimode gradient ber.
This kind of connection provides several advantages:
- large antenna cable distances (up to 2,000m)
- no destructive overvoltage via the antenna cable
- no unintentional monitoring via optical ber
The receiver-side module GOAL/R is supplied with power via the antenna input connector of the GPS receiver,
therefore no external power supply is necessary. The module GOAL/A needs an external supply for operating
and feeding the GPS antenna. Whenever the antenna is not connected, or a short circuit occurs on the antenna
cable, this is shown by a status LED in the front panel. A second status LED shows that the 10MHz reference
clock, coming from the GOAL/R, is received within a sucient signal strength and therefore the FO link is working.
The GOAL system is suitable for all Meinberg GPS receivers (except GPS166!), also for the later extension
of existing systems.
Physical Dimensions:
GOAL/A: 44mm x 105mm x 165mm (height x width x depth)
GOAL/R: 25mm x 25mm x 95mm (height x width x depth)
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Date: 2010-08-13 GPS Antenna
