KCCS
Precision Timing
GPS-disciplined oscillators for RTK survey, marine, precision agriculture and timing appliances — tight 1PPS sync and holdover.
Survey-grade GNSS receivers, precision agriculture rovers, marine navigation and timing appliances all depend on an internal oscillator that, once locked, keeps the receiver's local clock disciplined to satellite time. When the antenna is obscured (urban canyon, forest, indoors), the internal oscillator's holdover determines how long the receiver keeps a valid position fix. The same oscillator drives the receiver's 1PPS output used by everything else in the system.
| Use Case | Recommended KCCS | Key Spec |
|---|---|---|
| Survey-grade RTK rover | KDO27 / KDO65 GPSDO | ≤50 ns 1PPS, ±1.5 μs/24h holdover |
| Marine / timing appliance | KDO11 micro | 14.8×11.8 mm, ±10 ppb f-T |
| Precision agriculture rover | KOT25 rugged OCXO | ±0.2 ppb, wide temp |
| GNSS-denied backup | KCSA35 CSAC | 130 mW, autonomous holdover |