Viavi 87339, Operation Manual

Page: 154 / 198

Principals of Operation
7 - 3
GENERATOR (cont)
NAV Data: Navigation Data is computed in real-time to match the simulation
Positional Simulation: Maximum Relative Velocity (Range Rate) ± 1000 kts
Maximum Relative Jerk ± 500 m/s3
Maximum Altitude 100,000 ft
Positional Simulation
Accuracy: Pseudorange <2mm (RMS)
Pseudorange Rate <1mm/s (RMS) with respect to master oscillator
Pseudorange Jerk ±0.02 m/s3 (RMS over >1s)
Delta Pseudorange <2mm (RMS)
Interchannel Code Phase Alignment ± 0.02 m (RSS)
Interchannel Carrier Phase Alignment ± 0.265mm (RSS)
7.2 MASTER OSCILLATOR
Frequency: 10 MHz nominal (* see note)
Temperature Stability: ± ±0.05 ppm
Aging Rate: ±0.3 ppm/yr, ± 2.5 ppm/ 10 yr
Uncertainty: ±1 ppm
External Reference Input
Input Level: 0.25 to 6.0 Vp-p
Input Impedance
:50 ohm nominal
Input Frequency: 10.0 MHz ±10 Hz
External Reference Output
Output Level: 1.5 Vp-p nominal into 50 
Output Frequency: 10.0 MHz nominal
Reliability
MTBF: >10000 hrs
MTTR: 1hr
7.3 COUPLER
Type:
Patch in RF Absorbent Foam
Coupling: -21.5 dB typical at 1575.420 MHz.
Isolation:
> 25 dB at 1575.42 MHz
> 30 dB typical at 1575.42 MHz