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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).
- MT-4E Paging 1
- Codan MT-4E 3
- Paging Systems 3
- Page ii 4
- Page iii 5
- Page iv 6
- Contents 7
- Page vi 8
- PAGING BASICS 9
- PAGING PROTOCOLS 10
- Analog Tones 11
- Other Paging Protocols 11
- OTHER PROTOCOLS 12
- SIMULCAST 14
- RF Frequency Stability 15
- Paging Transmitter 17
- Link Transmitter 17
- BASE STATION PAGING 18
- REMOTE PAGING 19
- SIMULCAST PAGING 20
- PAGING BASE STATION 21
- PAGING REMOTE STATION 21
- TRANSMITTER 29
- RECEIVER 29
- PAGING MODULATOR (CI-PM-3) 30
- Power Input 32
- Channel and Bank Selection 33
- A-PNL-AUX96-3 34
- SYSTEM REGULATOR 35
- System Regulator Testing 36
- Power Control Lines 38
- PTT and A/D Control Lines 38
- A-PNL-SCARB-01 39
- POWER AMPLIFIERS 40
- REAR VIEW 41
- FRONT VIEW 41
- TUNING AND MAINTENANCE TOOLS 42
- CHAPTER 4: SOFTWARE 43
- Chapter 4: SoftwarePage 36 44
- Service section 45
- FIRMWARE VERSION NUMBER 46
- AVAILABLE FREQUENCY BANDS 47
- CHANNEL SWITCHING RANGE 47
- UPGRADING FIRMWARE VERSIONS 48
- 1 KHz TONE 49
- @ -8.0 dBm 49
- = 60% MAX. MOD 49
- NARROWBAND PAGING COVERAGE 50
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