Features
Key HPTS Features
- Modular Timing System
- Flexible
- Upgradeable
- Redundant
- Hot Swappable Modules
- High Accuracy
- Network-Centric
- Rugged
- Environmentally Qualified
- Automatic Propagation Delay Compensation
- Flexible input reference – GPS, Have Quick, IRIG B
The HPTS receives a basic input reference from a GPS receiver, or external source and, in turn supplies a variety of time and frequency signals in a wide variety of available formats. The unit is a ruggedized system specified to provide full performance over a wide range of environmental conditions.
A unique design feature of the HPTS enables it to distribute time reference signals over a wide area, while providing automatic compensation for propagation delays. The HPTS has been designed from the outset as a “network centric” product. All features and functions can be monitored and controlled by means of an Ethernet interface.
Two Master Clock Modules (MCM), each utilizing a rubidium or ovenized quartz oscillator, are used to provide redundant time base information for synchronization and system operation. The subsystem components are connected to a backplane bus built into the systems chassis. Output signals are a variety of low voltage analog and digital type signals such as 10MHz, 1PPS, Have Quick and IRIG Time Code.
System Accuracy
| MCM Timing Accuracy when locked to Input Reference | |
| External Have Quick / 1PPS | <15ns |
| IRIG B (Modulated) | <2µsec |
| GPS (calibrated antenna cable delay) | <50ns |
| MCM Frequency Accuracy (24hr avg.) | |
| Rubidium Oscillator Option | <1x10-12 when locked to input reference <5x10-11 after 24 hr. holdover |
| Ovenized Quartz Oscillator Option | <1x10-12 when locked to input reference <2x10-10 after 24 hr. holdover |
Short Term Stability at 10 MHz Output
| 1 sec | <1x10-11 |
| 10 sec | <1x10-11 |
| 100 sec | <1x10-10 |
Output Signal Module Accuracy with respect to MCM
| 1PPS | Main Chassis: +/- 5ns Remote Location (<2km): +/- 20ns |
| Have Quick | Main Chassis: +/- 5ns Remote Location (<2km): +/- 20ns |
| IRIG B124 | Main Chassis: +/- 250ns Remote Location (<2km): +/- 250ns |
| IRIG B DC | Main Chassis: +/- 40ns Remote Location (<2km): +/- 60ns |
Physical
| Dimensions | 19"W x 7"H (5RU) x 12" D |
| Weight | 24 lb. nominal |
Environmental
| Temperature | |
| Operating | -10 to +50°C |
| Emergency Operating | 70°C 5 minutes without damage |
| Storage | -40 to +85°C |
| Humidity | 5% to 95% non condensing |
| Altitude | Operating: -1500 to +11000 ft Non-Operating: -1500 to +41000 ft |































