Comark EXACT-V2, Руководство пользователя, Страница: 57 / 94

USER MANUAL
MPD-1611291-A
EXACT-V2 High End Rack Modulator / Exciter
3/10/2017
MPD-1611291-A
Page 57/94
3.5.6 Clock synchronization
Characteristics Typical Value Comment
External References
External 10 MHz Reference Input
Impedance:
50 Ohms
Level:
-15 to +15 dBm
Frequency:
10 MHz ± 0.6 ppm
External 1 PPS Reference Input
Level:
LVTTL level – 5 kohms
Min Pulse Width:
1 µs
10 MHz Reference Output: 0 dBm ± 3 dB
1 PPS Reference Output
Level:
LVTTL
Pulse Width:
≥ 100 ns
Characteristics Typical Value Comment
GPS Synchronization
System:
GPS
Frequency:
1575.42 MHz
Max Nb of Tracked Sat.:
12
Antenna System Gain:
10 dB
Sensitivity:
<-138 dBm
PPS Accuracy:
± 50 ns
Antenna Power Supply:
3.3 Volts DC
Characteristics Typical Value Comment