Codan Radio Communications UT-4E900 Manuale Utente

MT-4E VHF & UHF Receiver & Transmitter Instruction Manual

IM08-MT-4E-TXRX-P1162

IntRoduCtIon

The MT-4E Receiver and Transmitter are FM 

radio modules capable of analog operation 

in 12.5 kHz (narrow band) or 25 kHz (wide 

band) channels. A firmware upgrade may be 

purchased to allow P25 Digital operation. 

Modular design allows each of the receiver and 

transmitter’s internal modules to be individually 

assembled and tested, which facilitates 

construction, tuning and general maintenance.

The MT-4E Receiver and Transmitter combine 

state of the art performance in a compact 

modular enclosure for applications ranging from 

remote mountain top repeaters to congested 

urban radio environments. Each module is 

characterized by dependable, low maintenance 

performance under the most severe 

environmental conditions.

The MT-4E Receiver and Transmitter are 

primarily software controlled radio modules, 

allowing tuning, programming and maintenance 

to be done via software service with few 

hardware adjustments required.

The MT-4E series is compatible with all Daniels’ 

subrack and base station enclosures. It supports 

a basic analog interface and may be used in 

a mixed system with MT-3 and MT-4 series 

receivers and transmitters.

P25 digital Mode 

When the P25 firmware upgrade is purchased, 

the MT-4E family of receivers and transmitters 

may be configured for P25 Digital operation, 

or mixed mode operation. In a repeater 

configuration, the receiver passes the complete 

P25 Digital voice packet directly to the 

transmitter so no P25 Digital information is lost.

All P25 specifications, operational description 

and information contained in this instruction 

manual require the P25 firmware upgrade to 

function. If the MT-4E Receiver and Transmitter 

are purchased without the P25 firmware 

upgrade, the radio will program and operate in 

analog mode only.

NOTE: This equipment is not to be operated 

within the frequency band  

406–406.1 MHz unless specifically 

authorized by the Federal 

Communications Commission or Industry 

Canada in conjunction with COSPAS / 

SARSAT.

GEnERal InFoRMatIon

NOTE: The General Information and the Theory of Operation sections are common for all models of 

MT-4E Receivers and Transmitters. Information that is specific to individual models will be 

identified where relevant.