Planar IT-088, Руководство по эксплуатации

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Figure 4.18 Figure 4.19
The screen shows the CDL pages. On the first screen the top row of the table (index 1)
divides the table into columns. The first column (index 2) shows the page numbers from 1
to 112. The second column (index 3) is the channel plan number. The third column (index
4) is the measurement date. The fourth column (index 7) is the time of measurement. The
fifth column (index 6) is the result of the check against the template. The second screen
(figure 4.18) displays the comments for all the pages. The bottom line (index 5) contains
the list of commands that can be accessed by the functional keys. Pressing
« ◄ » and « ► »
arrows you can switch between the views of the screen. Pressing « », « » keys, or
entering numbers from the keypad select the required page.
List of available commands:
a) viewing of the CDL page (
View ). Select by «F1» key. Allows viewing the selected
page;
b) deleting of the CDL page ( Delete ). Select by «F2» key. Allows deleting the selected
page from the memory.
c) creating of a new CDL page ( New ). Select by «F3» key. Allows creating new CDL
pages.
4.4.3.3. Channel Data Logger Page Viewing
To view the contents of a CDL page, press «F1» . Scanning data table will appear on
the screen (figure 4.20 or 4.21). Two views of the table are available, for basic and digital
parameters. You can switch between these views by means of
« ◄ » and « ► » arrows. The
top line of the table divides the table into columns. The first column is the number of the
frequency point (number of channel) from 1 to 112 (according to the number of points in
the corresponding channel plan). The second column is the name of the channel of the
measured channel plan.
The following values are displayed in the last column of the basic parameters table:
video carrier level, V/A carriers ratio (for digital channels with Dg description), and C/N
ratio.
MER and postBER (BER after Viterbi decoder) values are displayed in the digital
parameters table. When measuring channels with hierarchical modulation, MER and
postBER parameters measuring is performed for low-priority stream. Analogue channels
are described as analog. If during digital channel measurement DVB-T/H demodulator
synchronization was not achieved, no lock description will appear in the line.
NOTE When operating with a channel plan, in case if the modulation set
for the frequency point is other than COFDM-QPSK, COFDM-QAM16,
COFDM-QAM64, this point is ignored and described as no lock .
The bottom line contains the commands that you can access by the functional keys.
List of the available commands:
a) scanning of the CDL page (
Scan ). Select by «F1» key. Allows re-scanning the
available pages.
b) saving of the CDL page ( Save ). Select by «F2». Allows saving the measurement
results.