A2537-002/01 February 2020 6-10 SEMCO Proprietary Information
Using the remote GUI, the user enables the de-randomizer pull-down menu by clicking on the Derand
button, which turns ON as shown in Figure 6-16. The user then clicks on Advanced Settings and Input
Code to access the pull-down-menu. Input codes include the signal formats as shown in the pull-down
menu and, by definition can be enabled for all demodulator formats except SOQPSK and Multi-h CPM. As
previously described, the receiver’s baseband outputs are NRZ-L when the De-Randomizer is ON.
Figure 6-16
Remote GUI De-Randomizer and Input Code Selection
6.6.2 Clock Phase
The embedded bit sync Clock Phase can be set to 0
o
, 90
o
, 180
o
or 270
o
as shown in Figure 6-17.
The operator pushes the DEMOD MODE button to access the <Ch1> Demod Menu, uses the UP (2) and
DOWN (8) arrows to scroll to BS Clock Phase in blue, and then pushes ENTER or SELECT (5) to highlight
the selection window in bright magenta. Using the UP (2) and DOWN (8) arrows, the operator selects a
Clock Phase and pushes ENTER or SELECT (5).
Using horizontal LEFT (4) and RIGHT (6) arrows, the operator selects <Ch2> in the Demod Menu header
bar, pushes ENTER or SELECT (5) to highlight the selection window in bright magenta, uses UP (2) and
DOWN (8) arrows to select a Clock Phase and then pushes ENTER or SELECT (5).
Using horizontal LEFT (4) and RIGHT (6) arrows again, the operator selects <Comb> in the Demod Menu
header bar, pushes ENTER or SELECT (5) to highlight the selection window in bright magenta, uses UP
(2) and DOWN (8) arrows to select a Clock Phase and then pushes ENTER or SELECT (5).
Figure 6-17
Embedded Bit Sync Clock Phase Settings Using Front Panel
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