Communication Ports
RuggedRouter
®
RX1000 Family
35
RuggedCom
®
- Rev.122
4.10.1 PTP Card Panel Description
IR IG -B
A M
O u tp u t
IE E E 1 5 8 8
E th e rn e t
In te rfa c e
IR IG -B P W M (T T L )
o r P P S O u tp u t 1
G P S
A n te n n a
In p u t
T
T
L
2
T
T
L
1
A
M
1
5
8
8
A
N
T
IR IG -B P W M (T T L )
o r P P S O u tp u t 2
Figure 33: PTP Card Panel Description
4.10.2 GPS Antenna Installation
The signals received from the GPS satellite network are at a frequency of 1575.42
MHz with a minimum power of -162 dBW. The GPS antenna must have a clear view
of the sky in order to receive the low power signals and track the maximum number
of satellites. Rooftops or other structures clear of obstructions and with a clear view
of the horizon are ideal.
Elements of a typical GPS antenna system:
Active GPS Antenna (required)
Coaxial cable to connect the elements (required)
Lightning arrestor (optional)
Line Amplifier or Filter (optional)
To ensure correct GPS signal reception, the overall system of antenna, cabling,
lightning arrestor, line amplifier and filters requires a relative gain which should be
greater than 5 dBi but less than 18 dBi (to avoid signal saturation at the receiver
input).
