Chapter 5: technical information, Available frequency bands, Front panel rj45 connector jack – Codan Radio MT-4E Paging User Manual

Page 47: Channel switching range

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MT-4E PAGING SYSTEMS | USER GUIDE

Chapter 5: Technical Information Page 39

CHAPTER 5: TECHNICAL INFORMATION

AVAILABLE FREQUENCY BANDS

MT-4E paging systems are available in the VHF (136 - 174 MHz) and UHF (380 - 520 MHz, 768 - 869
MHz and 896 - 960 Mhz) frequency bands.

The 470 - 520 MHz band is not available in Canada. The 380 - 406 MHz, 430 - 450 MHz, 470 - 520
MHz, 768 - 776 MHz, 798 - 824 MHz, 851 - 869 MHz, 896 - 902 MHz and 930 - 960 MHz Receivers
are available in Class B only.

The 380 - 406 MHz and 470 - 520 MHz Transmitters have an RF power output of 0.5 to 6.0 Watts
maximum. The 768 - 869 MHz and 896 - 960 MHz Transmitters have an RF power output of 0.5 to 3.0
Watts maximum.

Codan Radio Communications also has MT-3 VHF Lowband (29 - 50 MHz) transmitters and receivers
that can be used in an analog (tone) paging systems.

FRONT PANEL RJ45 CONNECTOR JACK

Codan MT-4E Radio Equipment has RJ45 jacks on the front panel of the Receiver and Transmitter.
The jacks are used on P25 Digital communications and are not used for the MT-4E Paging System.

CHANNEL SWITCHING RANGE

Although the receiver or transmitter channels can be programmed for any frequency in their band, the
Maximum Switching Range of the module must not be exceeded or the module will require hardware
re-tuning. The maximum switching range of the Receiver modules is +/- 2 MHz (136 - 520 MHz) or
Unlimited (768 - 960 MHz), and the Transmitter modules are Unlimited, unless the VSWR Alarm is used
(+/- 0.5 MHz for VSWR Alarm). For example, a VHF receiver may be programmed for any frequency
between 136 to 174 MHz, but the front end helical fi lter has a typical pass band of 5 MHz, requiring re-
tuning if two frequencies are used that are outside of that pass band.

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