GlobalTime NTP Products
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way of forwarding, it is much effective for the prevention of lightning and the protection of the
host. Problems caused by the lightning is the transponder damaged. Due to a certain
transmitting power, it is suitable for some occasions.
Table 2-1 Antenna Specifications
Frequency range
1575±5MHz;
RF connector
N-type connectors
Polarization
Right-hand circular
polarization
Installation
Thread (M24 × 1.5)
connection
Antenna gain
≥3.5dB
；
Volume
φ96×126mm
；
Amplifier gain
≥37dB
；
Operating
temperature
-45
℃
～
85
℃
；
Noise coefficient
≤1.5dB
；
Storage
temperature
-50
℃
～
90
℃
；
Interference
suppression
25dB(f0±100MHz)
；
Humidity
0
～
100%
Power consumption
3V×20mA
；
2.3
Indoor installation
After connecting 220V AC to the master device, the indicator light "Power" on the front panel
will light which indicates the running of power supply is normal. To measure the BNC
antenna socket with a multimeter, the feed voltage should be up to 5V.
Then connect the antenna cable with the antenna socket.
Next, use a computer to pass through the IP address and network settings of the serial port
configuration time server, save and exit, then restart GTT-200 Network time server to make
the network settings take effect. After reboot, input the IP address of the PING server in
another computer to check the network settings correct or not.
Last, log on the network time server through Telnet to observe the satellite receiving state,
the information on time tracking state of the server and so on. When the server locks the
satellite time ( The indicator light on the panel turns green), GTT-200 starts to provide time
