Motorola DIMETRA MTS 2, Installation, Configuration And Basic Service Manual

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MTS 2 and MTS 4 Installation, Con
fi
guration and Basic Service Manual MTS 4 Preselector
Figure 7-17 MTS 4 TX on 1 ant., RX on 3 ant. - Filter Configuration
MTS 4 Preselector
The MTS 4 Preselector is a bandpass
fi
lter, which only allows the receiver signals to pass. With a bandwidth of:
•
5 MHz for 400 MHz version
•
19 MHz for 800 MHz version
The
fi
lter’s bandwidth is designed to block transmitter frequencies. The receive and
transmit bandpass are 10 MHz apart for 400 MHz and 45 MHz apart for 800 MHz. The
Preselector incorporates an LNA followed by an RMC.
The MTS 4 Preselector has four RX outputs and one expansion output.
6802800U74-N September 2009
7-19