Codan Radio MT-4E Paging - Manual (Page 28)

USER GUIDE | MT-4E PAGING SYSTEMS
Chapter 3: MT-4E Paging System Components Page 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).