T
ABLE OF
C
ONTENTS
GPS General System Information - V01.03
5 / 34
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]
Contents Page
1
How GPS works ............................................................................................................7
2
Accessories...................................................................................................................8
2.1
GPS Antenna ............................................................................................................8
2.1.1
Where to install the antenna .................................................................................................8
2.1.2
Mechanical Structure of the Antenna....................................................................................8
2.1.3
Electrical Structure of the Antenna .......................................................................................8
2.2
Antenna Cable...........................................................................................................9
2.2.1
Cable Length and Cable Types ............................................................................................9
2.2.2
Preparation of the cable........................................................................................................9
2.2.3
Cable Installation.................................................................................................................10
2.3
Lightning Protection................................................................................................. 11
2.3.1
General Information about Lightning Protection .................................................................11
2.3.2
Causes of Overloading .......................................................................................................11
2.3.2.1
Electrostatic Field ....................................................................................................................... 11
2.3.2.2
Increase in the Earth Potential.................................................................................................... 11
2.3.2.3
Electromagnetic Radiation.......................................................................................................... 11
2.3.3
Lightning Protection Concept..............................................................................................12
2.3.3.1
Rough Lightning Protection......................................................................................................... 12
2.3.3.2
Fine Protection (in the
hopf
GPS receiver board) ..................................................................... 12
2.3.3 Installation .............................................................................................................................12
2.4
Line Amplifier........................................................................................................... 13
2.4.1
Installation ...........................................................................................................................13
2.5
Dual Power Splitter (Operation of two Appliances on one Antenna) ....................... 14
2.5.1
Installation ...........................................................................................................................14
2.5.2
Outside Connection.............................................................................................................14
2.6
8x Power Splitter (Operation of eight Appliances on one Antenna)......................... 14
3
Technical Data ............................................................................................................ 15