Routine Operation
3-83
SCM4000
Operator’s Guide/Tech Ref Manual
8.
Press the Up or Down arrow keys, as required, to
move the cursor to the
Recall Preset
option. Observe
the cursor changes to a
>
cursor.
9.
Press the
SEL
or Right arrow key and observe the
Recall Preset
option changes to
#X: Preset #X
, as
shown in
, and the
>
cursor changes to a
!
cursor.
Figure 3-218: Recall Preset Option
10.
Press the Up, Down, Left, or Right arrow keys to select
Preset
1
thru
9
, as required, and press the
SEL
key.
11.
Press the
ESC
key repeatedly until the Main Screen is
displayed.
12.
Press the Up or Down arrow keys, as required, to
move the
>>
cursor to the
Demodulator
option.
13.
Press the
SEL
key or Right arrow key and observe the
Demodulator
menu is displayed.
.
Figure 3-219: Demodulator Menu - Typical
14.
Press the Up or Down arrow keys, as required, to
move the cursor to the
EVM:
option and observe the
cursor changes to a
*
cursor.
Preset Menu
! #X: Preset #X
Save Settings
Demodulator
* SNR: 30.3dB
EVM: 1.5%
Data Ch1:
Note
Pressing the
SEL
key when the
*
cursor is
displayed will lock the display to allow you to
monitor EVM changes as they occur. To unlock the
display, press the
ESC
key.
15.
Observe the current Error Vector Magnitude (EVM) is
displayed.
16.
Press the
ESC
key repeatedly until the Main Screen is
displayed.
Monitor/Change ASI Bit Rate Settings
The procedure required to monitor or change ASI bit rate
settings from 0.0 to 90.0Mb/s is contained in the following steps.
This procedure may only be performed for SCM4000 Data
Channel 1 thru 4 options that have been factory set for ASI 1,
ASI 2, or ASI 3.
1.
Verify the SCM4000 is powered up.
2.
Verify the Main Screen is displayed.
. If the Main Screen is not displayed, press the
ESC
key repeatedly until the Main Screen is
displayed.
Figure 3-220: Main Screen Menu - Typical
3.
Press the Down arrow key, as required, to move the
>>
cursor to the
System Menu
option.
SCM4000
>> Demodulator
System Menu
Содержание SCM4000
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