Promax PROLINK-3 Premium Manual De Instrucciones página 162

in the example of the following figure) and the number of signal cuts (2 in the example of
the following figure). To reset the counter it is necessary to change any of the detection
parameters, for example tune again the signal or push twice the
Figure 15.- Signalling two MPEG-2 signal cuts with a total length of 12 seconds.
Finally it is shown a status line with information about the detected signal. The
possible messages that can appear and its meaning are showing the following list. The
messages are exposed from less to more fulfilment of the MPEG-2 standard:
No signal received
No signal has been detected.
Timing recovered
Only it is possible to recuperate the symbol time.
AFC in lock
The system automatic frequency control can identify and lock a digital
transmission (TDT) but its parameters can not be obtained. It can be due to a
transitory situation previous to the TPS identification (Transmission Parameter
Signalling) or well to a TDT transmission with an insufficient C/N ratio.
TPS in lock
The TPS (Transmission Parameter Signalling) are decoded. The TPS are carriers
(17 in the 2k system and 68 in the 8k system) modulated in DBPSK, containing
information related to the transmission, modulation and codification: Modulation
type (QPSK, 16-QAM, 64-QAM), Hierarchy, Guard Interval, Viterbi Code Rate,
Transmission mode (2k or 8k) and Number of the received frame.
MPEG-2
Correct detection of a MPEG-2 signal.
In case of detecting a DVB signal, message MPEG-2 DVB-T will appear and the
DVB Channels Identifier function will be automatically activated. (See section '4.9.2
DVB Channels Identifier: DCI function').
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USER'S MANUAL. PROLINK-3/3C Premium
[22] key.
06/2005