S o n o m a U s e r M a n u a l
145
"Smarter Timing Solutions"
Appendix H
Specications
CDMA Receiver:
Cellular Mobile Receive Band - 869-894 MHz (Standard)
North American PCS Mobile Receive Band – 1930-1990 MHz (Standard)
Japanese Cellular Mobile Receive Band – 860-875 MHz (Optional Configuration)
TIA/EIA IS-95 CDMA Pilot and Sync channels.
Antenna:
TNC jack on rear panel, Z
in
= 50Ω.
Dual Band, 824-896 MHz/1850-1990 MHz,
magnetic-base monopole with integral 12 ft. RG-58/U cable and TNC plug.
Extension cables and low noise pre-amplifiers are available as options.
System Oscillator:
TCXO is standard (2.5 x 10
-6
over -20° to 70° C).
Options: OCXO (4x10
-9
over 0 to 70° C).
Rubidium (1x10
-9
over 0 to 70°C).
Stratum 1 Holdover Performance: 24 Hours - TCXO
35 Days - OCXO
140 Days - Rubidium
Time to Lock:
< 5 minutes, typical (TCXO).
< 10 minutes, typical (OCXO/Rb).
Server Performance and Synchronization Accuracy:
CDMA Receiver Accuracy: <10 microseconds to UTC when locked, typical.
ΝTP Timestamp Accuracy: <10 microseconds @ 7500 packets/second.
NTP Client Synchronization Accuracy: Network factors can limit LAN synchronization accuracy
to 1/2 to 2 milliseconds, typical.
Server Platform:
Operating System Kernel Version: 3.2.2
Slackware Linux Distribution: 13.1
Processor: 1.2 GHz.
RAM: 512M
FLASH: 512M
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