Strata Operations Guide
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Introduction
The Microwave Radio Communications (MRC) Strata system provides a reliable and highly flexible
video microwave transport system. This operations guide provides basic system operations information
and details for hands-on operation of this equipment.
System Description
Figure 1 below shows the overall Strata system architecture for a fully equipped system.
TCU
TXU
HPU
!
NTSC
!
PAL
!
SDI
!
ASI
!
IF
RF OUT
RF/DC
Telemetry
Telemetry
IF or Baseband Signal
DC Simplex Powering
IN
Dummy Load
12 v to 48 v
DC
RS-232
1.84 MHz OOK Tone
12 v to 48 v
DC
RS-232
Figure 1 – Strata Transmitter System Architecture
The primary system features are:
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Lightweight, Modular, Multi-Unit Design
o
Analog, Digital, or Analog/Digital Switchable
o
MPEG Encoding (4:2:0, 4:2:2)
o
COFDM Modulation with Selectable Guard Interval
o
Digital Modulation for QPSK, 16QAM, and 64QAM
o
NTSC or PAL Modulation with Audio (4 mono or 2 stereo)
o
Tripod, Half Rack, or Full Rack Mounts
o
Front Panel Remote Controlled
o
Bands from 2 to 15 GHz
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Wide Choice of Antennas
Note that the TCU (Transmitter Control Unit) and the TXU (Transmitter Unit) may be operated in a
stand-alone configuration depending on specific video transport applications.
TCU Description
The TCU component can accept a wide variety of signal formats and provide several different output
signal formats. Figure 2 below shows the basic functions of the TCU.
