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4 Operation
MiLLennium GPSCard and Enclosures Guide to Installation & Operation 23
4 OPERATION
4 OPERATION
Before operating the receiver for the first time, ensure that you have followed the installation instructions in Chapter 3.
The following instructions are based on a configuration such as that shown in Figure 5.
Figure 5 Typical Operational Configuration
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6
Reference Description Reference Description
1 MiLLennium GPSCard 7 Optional external oscillator
2 Enclosure 8 GPS signal
3 GPSAntenna 9 Clock signal
4 Command source or reference station 10 COM1
5 Data logger or remote station 11 COM2
6 External power source 12 Power
COMMUNICATIONS WITH THE RECEIVER
Communication with the receiver is straightforward, and consists of issuing commands through the COM1 or COM2 port
from an external serial communications device. This could be either a terminal or an IBM-compatible PC that is directly
connected to a receiver serial port using a null modem cable. For specific information about any of the GPSCard
commands and logs, please consult the MiLLennium Command Descriptions Manual.
It is assumed that a personal computer is used during the initial operation and testing for greater ease and versatility.
Furthermore, it should be understood that communication between the MiLLennium and a computer is achieved by virtue
of the GPS firmware that resides within the MiLLennium.