Promax US TV EXPLORER II Manual De Uso página 40

FREQ:
CHANNEL:
Figure 9.- Signal automatic identification screen. AUTO ID.
First it recognizes 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 (ATSC, ITU-T J.83/B, DVB-C, DVB-S and DSS), it analyzes for each
modulation type QAM Annex-A / QAM Annex-B / QPSK / 8QPSK / 8-VSB all the
associated parameters such as the modulation system: carriers, symbol rate, code
rate, etc.,. and determines the value of signals under test.
If the AUTO ID function is launched in the spectrum analyzer 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 auto-detection.
Whenever the process detects new parameters for a channel or frequency it 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
NOTE:
In order to identify DVB-S2 signals will be necessary to activate previously
the DVB-S2 option for digital satellite signals in the
PREFERENCES menu.
Page 32
753.25 MHz
TESTING FOR ANALOG
NOT ENOUGH LEVEL 46.2 < 50.0 dBµV
TESTING 8-VSB
POWER OK 51.6 >= 32.0 dBµV
TRYING CURRENT 8-VSB CONFIG.
DIGITAL: 8-VSB
SEARCHING NETWORK NAME
CANCEL
icon in the upper corner of a digital measurement screen states
USER'S MANUAL. US TV EXPLORER
DL: 753.25
61
[25 ] key.
MHz
[22]
11/2013
II