Codan-radio MT-4E Paging Manual de usuario descargar pdf (Pagina 28)

USER GUIDE | MT-4E PAGING SYSTEMS

Chapter 3: MT-4E Paging System ComponentsPage 20

GPS SATELLITE RECEIVER (OPTIONAL)

Codan Radio Communications does not manufacture a GPS Satellite Receiver. There are many

companies that can supply this equipment. Codan can supply and integrate these 3rd party items in

an MT-4E paging system.

Spectrum Instruments, Inc. (www.spectruminstruments.net) specializes in high-performance, GPS

disciplined precise timing, synchronization, frequency reference and signal distribution equipment.

The Intelligent Reference/TM-4™ is a GPS disciplined time and frequency reference with a one pulse-

per-second (1 PPS) output and high spectral-purity 10 MHz sine wave output (both outputs are BNC

connectors).

Figure 3-9: Spectrum Instruments TM-4

Trimble (www.trimble.com) is a leading provider of advanced positioning solutions including GPS, laser,

optical and inertial technologies. The Trimble Acutime™ Gold is a pole-mounted GPS receiver and

antenna in a single environmentally sealed enclosure with a one pulse-per-second (1 PPS) RS-422

output.

Figure 3-10: Trimble Acutime™ Gold

The Trimble Thunderbolt® E GPS Disciplined Clock includes an ovenized quartz oscillator providing a

stable 10 MHz and 1 PPS output (BNC connector or RS-232).

Figure 3-11: Trimble Thunderbolt® E

Trimble GPS receivers are compatible with the Zetron Model 600 / 620 Simulcast Paging System (the

Trimble Acutime™ Gold can only be used for the 1 PPS time synchronization, another device would be

required for the 10 MHz high stability reference).

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Codan-radio MT-4E Paging Manual de usuario Pagina 28