A2537-002/01 February 2020
6-8
SEMCO Proprietary Information
The
Analog Gain “A”
function applies to FM, Trellis FM, PM, BPSK and Multi-h CPM analog baseband
video outputs.
Analog Gain “A”
and
Analog Gain “B”
are enabled for QPSK, AQPSK, UQPSK,
A/U/QPSK and SOQPSK analog I and Q baseband video outputs.
Figure 6-13
Video FIR Filter Bandwidth and Gain Selection on Remote GUI
6.6
Embedded Bit Synchronizer Features
The embedded bit synchronizer provides for the following settings:
A. Input Code
B. De-Randomizer
C. Clock Phase
D. Data I/Q Interleaving
6.6.1 Input Code and De-Randomizer
The demodulator’s embedded bit synchronizer has a standard IRIG 15-bit de-randomizer feature. The de-
randomizer accepts NRZ-L/M/S and Bi-Phase L/M/S inputs and converts the output to NRZ-L format.
Figure 6-14 illustrates the steps for enabling the embedded bit sync de-randomizer.
The operator pushes the
DEMOD MODE
button to access the
<
Ch1
>
Demod Menu
display, uses the
UP
(2) and
DOWN
(8) arrows to scroll to
BS DE-RANDOMIZER
in blue, and then pushes
ENTER
or
SELECT
(5) to highlight the
selection window in
bright magenta
. The operator then uses the
UP
(2) and
DOWN
(8) arrows to select
ON
and pushes
ENTER
or
SELECT
(5).
Using the horizontal
LEFT
(4) and
RIGHT
(6) arrows, the operator selects
<
Ch2
>
in the
Demod Menu
header display bar, pushes
ENTER
or
SELECT
(5) to highlight the selection window in
bright magenta
,
uses the
UP
(2) and
DOWN
(8) arrows to select
ON
and then pushes
ENTER
or
SELECT
(5).
Using the horizontal
LEFT
(4) and
RIGHT
(6) arrows again, the operator selects
<
Comb
>
in the
Demod
Menu
header display bar, pushes
ENTER
or
SELECT
(5) to highlight the selection window in
bright
magenta
, uses the
UP
(2) and
DOWN
(8) arrows to select
ON
and then pushes
ENTER
or
SELECT
(5).
Video A
FIR Filters
and Gain
Control
Video B
FIR Filters
and Gain
Control
Содержание RC100C-2
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