Mts Lite / Mts 2 Duplexer; Figure 143: Mts 2 Duplexer - Motorola MTS LiTE Installation, Configuration And Basic Service Manual

7.2.3

MTS LiTE / MTS 2 Duplexer

The Duplexer is a Preselector with Integrated Receiver Multicoupler (RMC) and a Post Filter with a
digital power monitor (DPM) combined into one unit. These form the two bandpass filters that make up
the Duplexer; one is a receive filter and the other a transmit filter.
NOTICE: The MTS LiTE Duplexer is common with the MTS 2 Duplexer.

Figure 143: MTS 2 Duplexer

NOTICE: Unused RX outputs should be terminated.
The duplex spacing between a transmit frequency and the corresponding receive frequency is 10 MHz,
with the transmit frequency highest. This leaves a 5 MHz spacing between the lowest possible transmit
frequency and the highest possible receive frequency.
For MTS 2 260 MHz, the duplex spacing between a transmit frequency and the corresponding receive
frequency is 9 MHz, and leaves a 3 MHz spacing between the lowest possible transmit frequency and
the highest possible receive frequency.
For 800 MHz, the duplex spacing between a transmit frequency and the corresponding receive
frequency is 45 MHz, and leaves a 19 MHz spacing between the lowest possible transmit frequency
and the highest possible receive frequency in each duplexer.
For 900 MHz, the duplex spacing between a transmit frequency and the corresponding receive
frequency is 15 MHz, and leaves a 10 MHz spacing between the lowest possible transmit frequency
and the highest possible receive frequency.
The MTS LiTE/MTS 2 Duplexer has 2 RX outputs and can handle a maximum power of 60 watts.
Chapter 7: Radio Frequency Distribution System
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