Strata Operations Guide
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11 -
Configuring the Radio System using the TCU/TXU Serial Port and the
“Strata TX Configurator” Software Utility
Basic Strata TX Configuration Details
The following basic system configuration settings may be administered using the Strata TX Configurator
software utility.
•
COFDM IF Mode
– 70 MHz COFDM IF output from the internal COFDM/MPEG board supplied to
output and monitor ports (to TXU if present).
•
IF Input
– 70 MHz IF input signal from input connector routed through TCU to TXU (if present).
•
ASI Input
– Bypasses internal MPEG encoder and routes an externally supplied ASI stream to the
monitor and output connectors (to TXU if present).
•
MPEG ASI Output
– supplies a DVB ASI transport stream to the signal output connector and the
monitor output connector.
Note: This mode is only accessed when the TCU is operated in a stand-
alone configuration.
•
Analog Audio/Video
– Routes 70 MHz FM output to TXU (if present). This mode is only supported
with the FMT option installed.
•
DVB-S
– This operational mode uses a single carrier modulator scheme and supplies a 70 MHz IF
output to the signal output connector and the monitor output connector
,
only operational for QPSK
and 16 QAM.
Note: This mode is currently not supported in the current software release.
•
RF Frequency
Used to select an RF frequency from 1.99 GHz – 2.50 GHz (up to 5 decimal places).
•
Modulation Type
Used to select each digital modulation mode for COFDM operation and DVB-S mode (when
applicable) – QPSK, 16 QAM, 64 QAM.
Note: 64 QAM modulation may not be used in the DVB-S
mode of operation.
•
FEC Type
Used to select each FEC (Forward Error Correction) scheme to be used – (1/2, 2/3, 3/4, 5/6, 7/8).
•
COFDM Guard Interval
Used to select the individual Guard Interval for COFDM operation only – 1/32, 1/16, 1/8, 1/4.
•
COFDM Bandwidth
Used to select COFDM bandwidth operation – 6 MHz, 7 MHz, or 8 MHz.
•
Video Input
Used to select the necessary video input for the MPEG encoder from the following selections:
NTSC composite video, PAL composite video, SDI – 525 line, SDI – 625 line.
•
Chroma
Used to select MPEG chroma profile – 4:2:0 (420 profile @ main level), 4:2:2 (422 profile @ main
level).
•
Color bars
Used to turn the internal color bars generator ON, OFF or place in AUTO mode – (used in IF digital
modes only). Color bars will display a user programmed
Service Name
parameter if applied. Video
input is bypassed when ON. Auto mode will insert color bars when no video input is detected
