GENERAL INFORMATION
PHASE NOISE
The following specifications are for the 10MHz sine wave output available on rear
panel BNC connectors J4-J9:
1Hz -72 dBc/Hz
10Hz -93 dBc/Hz
100 Hz -115 dBc/Hz
1KHz -126 dBc/Hz
10KHz -136 dBc/Hz
100 KHz -136 dBc/Hz
TEMPERATURE RANGE AND STABILITY
±1.0PPM from -30
o
to +75
o
C.
ADJUSTMENT RANGE
±3.0PPM minimum by internal manual trimmer.
VOLTAGE CONTROL
±3.0PPM minimum from +0.5 to +4.5 VDC.
B. LOW NOISE OVEN OSCILLATOR (Configuration –OCXO) with the
following specifications:
OUTPUT FREQUENCY/WAVEFORM
10MHz Sine Wave.
OUTPUT AMPLITUDE OF CRYSTAL OSCILLATOR
1.0 volt RMS into 50 ohms.
AGING RATE
±5 x 10
-10
per day, ±5 x 10
-8
per year.
TEMPERATURE STABILITY
±1 x 10
-8
over a temperature range of –20ºC to +75ºC.
OPERATING TEMPERATURE
–20ºC to +75ºC.
ALTITUDE
Sea level to +50,000 feet.
ELECTRICAL TUNING
±1PPM (minimum) / ±2PPM (maximum).
Symmetricom Inc ET6xxx ExacTime GPS TC & FG (Rev C) 1-9