10 Mhz Output - Oscillator Phase Noise (Dbc/Hz) - Spectracom SecureSync 1200 User Reference Manual

Table 1-7:
Low-phase noise Rubidium
Rubidium
Low-phase noise OCXO
OCXO
TCXO
See also "Configuring the Oscillator" on page 196.
Table 1-8:
Oscillator Type
Low-phase noise
Rubidium
Rubidium
Low-phase noise
OCXO
OCXO
TCXO
1.7.7.1 10 MHz output — Oscillator Phase Noise (dBc/Hz)
Low-phase noise Rubidium
CHAPTER •
1 SecureSync User Reference Guide Rev. 23
10 MHz output — oscillator types and accuracies
Oscillator Type
1x10
1x10
1x10
1x10
1x10
2x10
2x10
1x10
1x10
1x10
Note: Oscillator accuracies are stated as fractional frequency (i.e. the relative fre
quency departure of a frequency source), and as such are dimensionless.
10 MHz output — oscillator stability
Medium-Term Stability
(without GPS after 2 weeks of
GPS lock)
-11
5x10 /month (3x10
typical)
-11
5x10 /month (3x10
typical)
-10
2x10 /day
-10
5x10 /day
-8
1x10 /day
Oscillator Type @ 1Hz
˗100
Accuracy
-12
typical 24-hour average locked to GPS
-11 -11
per day (5x10 per month) typical aging unlocked
-12
typical 24-hour average locked to GPS
-11 -11
per day (5x10 per month) typical aging unlocked
-12
typical 24-hour average locked to GPS
-10
per day typical aging unlocked
-12
typical 24-hour average locked to GPS
-9
per day typical aging unlocked
-11
typical 24-hour average locked to GPS
-8
per day typical aging unlocked
Short-Term Stability (Allan vari
1 sec.
-11 -11
/month 5x10
-11 -11
/month 2x10
-11
5x10
-10
5x10
-9
2x10
@ 10 Hz @ 100 Hz
˗128 ˗148
1.7 Specifications
Temperature
ance)
Stability
100
(p˗p)
10 sec.
sec.
-11 -12 -10
2x10 5x10 1x10
-12 -12 -10
2x10 2x10 1x10
-11 -11 -9
2x10 1x10 1x10
-11 -11 -9
5x10 1x10 5x10
-9 -10 -6
1x10 3x10 1x10
@ 1KHz @ 10 KHz
˗153 ˗155
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