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MPEG Services List
9.1. Decoding the signal content
From the Home page, touching the
MPEG SERVICE LIST
icon will activate the meter's
MPEG decoder. This function can also be accessed moving the selector on the icon
rotating the mechanical encoder.
As briefly seen in the preceding chapters, the MPEG Service List function allows the user to
decode the Transport Stream carried by the signal and visualize the list of services composing
it:
The meter keeps memory of the last measurement done by the user; this means that the
MPEG Decoding interface will tune on the last measured channel, being SAT, TER or CATV.
The screen is composed by seven zones:
1. Signal tuning parameters: as for all the measurement interfaces, at the top of the screen the
meter provides the essential tuning parameters, including Frequency, channel BW and
modulation standard.
2. Services List: once the signal is locked and demodulated, the Decoder starts scanning the
Transport Stream to find the SI tables (Service Information Tables), containing all the
information related to the Transport Stream's structure: number of services, list of PIDs,
Services names, etc.
When all these information are available, the meter visualizes the list of all the available
services and for each of them displays the service type (
TV, RADIO or DATA
), the encryption
status and - for TV services - also the LCN.
3. Date & Video rate: in this section the meter visualizes the current Date (read into the TDT)
and the Video bit rate of the service being decoded.
4. Video decoding box: In this section, the meter visualizes the video content of the selected
service; by default (without any selection) the meter starts decoding and visualizing the A/V
content of the first non-scrambled service in the list. Moving the selector along the service list
(or selecting a service by touching the screen over the service name) will result in switching
the A/V decoding on that service instantly.
Conversely, touching the screen over the video box, will activate the full screen visualization,
Summary of Contents for HD PRO TAB
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