Figure 9.- Signal automatic identification screen. AUTO ID.
First it recognises whether the signal is an analogue channel or a digital one. If the
channel is analogue, it determines the television standard of the signal. When the signal
is digital (DVB), it analyses for each modulation type QAM / QPSK / 8PSK / COFDM all
the associated parameters such as the modulation system: carriers 2k/4k/8k, symbol
rate, code rate, etc, and determines the value of the signals under test.
If the AUTO ID function is launched in the spectrum analyser mode, the name of
the network will appear temporarily on screen (it also appears in the measurement
display). In case of working in the satellite band the orbital position appears as well.
While performing automatic identification may be the equipment keeps detecting
the NETWORK ID for a long time. During this process, the CANCEL button switches to
SKIP, which allows bypassing the NETWORK ID without losing the other parameters of
the autodetection.
Whenever the process detects new parameters for a channel or frequency will
create a new channel plan containing the detected information.
NOTE:
The
that the signal level is higher than the minimum threshold (see the
PREFERENCES menu) but demodulator cannot lock it maybe due to some
wrong configuration parameter.
In such case, the user must press AUTO ID
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icon in the upper corner of a digital measurement screen states
USER'S MANUAL. TV EXPLORER HD+
[25] key.
11/2013