Mts 4 Duplexer; Figure 7-20 Mts 4 Duplexer - Motorola DIMETRA MTS 2 Installation, Configuration And Basic Service Manual

MTS 4 Duplexer

MTS 4 Duplexer
The Duplexer is a Preselector with an 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. See
the block schematic of the MTS 4 Duplexer in
For 400 MHz, the duplex spacing between a transmitter frequency and the corresponding receive
frequency is 10 MHz, with the transmitter frequency highest. This leaves a 5 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.
The MTS 4 Duplexer has 4 RX outputs and one expansion output. It can handle a maximum power 180 Watts.

Figure 7-20 MTS 4 Duplexer

7-22
Chapter 7: Radio Frequency Distribution System
Figure 7-21
6802800U74-N September 2009