Introduction to the SINAUT ST7 system
2.7 Radio clock components
SINAUT ST7 Station control system - System Manual
82
System Manual, 05/2007, C79000-G8976-C178-06
GPS receiver
Outdoor antennas
Type of antenna
Micro-strip line with preamplifier
Center frequency
1575.42 MHz
Bandwidth
10 MHz
View angle
+10° above horizon
Power supply (over antenna cable)
4.5 to 7 V DC
Impedance
50 ohms
Power gain
20 dB
Max. cable length without amplification
25 m
Plastic housing
Light-resistant
Wind load
max. 180 km/h
Degree of protection
IP65
Temperature range
•
Operation
•
Storage
•
-30 °C t80 °C
•
-40 °C t85 °C
Humidity
100%
Lightning protection
Housing material
Pressure die cast aluminum housing
Dimensions (W x H x D) in mm
250 x 105 x 95
Weight
Approx. 1.8 kg
Grounding point
•
Thickness of copper strand
•
length of copper strand
M6 threaded connection
•
min. 10 mm2
•
max. 10 m
Current pulse withstand 8/20 µs wave
10 kA
Response time
< 1 ns
Protection level at 6 kV 1.5/50 µs wave at input
< 12 V
Insertion loss for DCF77 signal
Max. 3 dB
Input / output
BNC female / BNC female
Input / output impedance
50 ohms
Degree of protection
IP40
Temperature range
•
Operation
•
Storage
•
-20 °C t80 °C
•
-40 °C t85 °C
Humidity
95% no condensation