Trimble Outdoors thunderbolt 64057-00-eng Manuale Utente
1 Introduction
10 Trimble ThunderBolt E GPS Disciplined Clock User Guide
Operation
The ThunderBolt E GPS disciplined clock provides time and frequency through a
12-channel GPS receiver and a high-quality ovenized quartz oscillator integrated onto
a single printed circuit board. Tightly integrating GPS into the clock design eliminates
the need for a separate GPS receiver. This results in better reliability, a smaller size, and
a cost advantage.
12-channel GPS receiver and a high-quality ovenized quartz oscillator integrated onto
a single printed circuit board. Tightly integrating GPS into the clock design eliminates
the need for a separate GPS receiver. This results in better reliability, a smaller size, and
a cost advantage.
The board in the ThunderBolt E consists of one board with GPS and a 24 V power
supply regulator. This power supply regulator ensures clean, robust power to the GPS.
The board can support several different oscillators for applications having stringent
holdover requirements.
supply regulator. This power supply regulator ensures clean, robust power to the GPS.
The board can support several different oscillators for applications having stringent
holdover requirements.
The ThunderBolt E is ready to use out of the box for most applications. When a
+24 VDC power source is applied, the ThunderBolt E will begin to track satellites—
four satellites are required to begin the self-survey process. At the same time the
oscillator will come up to operating temperature and stabilize, outputting the 1 PPS
and reference frequency.
+24 VDC power source is applied, the ThunderBolt E will begin to track satellites—
four satellites are required to begin the self-survey process. At the same time the
oscillator will come up to operating temperature and stabilize, outputting the 1 PPS
and reference frequency.
To get the most from your time reference, you can customize the ThunderBolt E using
the Trimble binary interface, TSIP (Trimble Standard Interface Protocol). For more
information, see
the Trimble binary interface, TSIP (Trimble Standard Interface Protocol). For more
information, see
Features
Hardware features
•
A single printed circuit board containing
–
A quality ovenized oscillator
–
A 12-channel GPS receiver
–
Control circuitry
•
Easy integration with the Trimble Bullet
™
antenna
•
Easy calibration for different cable lengths
•
Output
–
10 MHz reference signal output via BNC connector
–
1 PPS output with an Over-determined solution synchronized to GPS or
UTC time
UTC time
Interface protocols
The ThunderBolt E uses the Trimble Standard Interface Protocol (TSIP). This is a
binary packet protocol that allows the system designer maximum configuration
control over the GPS receiver for optimum performance in timing applications. TSIP
binary packet protocol that allows the system designer maximum configuration
control over the GPS receiver for optimum performance in timing applications. TSIP