Base Radio - Theory Of Operation; Figure 177: Base Radio Front Panel - Motorola MTS LiTE Installation, Configuration And Basic Service Manual

6802800U74-AN
Chapter 10: Base Radio
For more information on Base Radio indicators and connectors, see
Connectors on page 325
10.2
Base Radio – Theory of Operation
The Base Radio (BR) provides reliable digital communications capabilities. Each Base Radio contains
the following subcomponents:
• Transceiver consisting of a Base Radio Controller, a triple receiver, and an exciter
• Power Amplifier (PA)
In the MTS 2 and 4, the Base Radio (BR) operates in conjunction with the Site Controller (SC) through
a properly terminated 100Base-T Ethernet link.

Figure 177: Base Radio Front Panel

On the front panel, there is a DC power input, three parallel receiver (RX) inputs, a high power
transmitter output signal from the power amplifier, a service port, two interfaces to the Site Controllers,
and LED indicators. For more information on the LED indicators, see
Indicators on page 325.
The following figures show overall block diagrams of the Base Radios for both architectures: BR-
Arch-1 and BR-Arch-2.
320
in this chapter.
Base Radio – Indicators and
Table 99: Base Radio – LED