Zoom, Scroll And Erasing Functions - Promax TV EXPLORER II Manual De Instrucciones

First, it shows the modulation type: DVB-T/H (64 QAM). Next, frequency, channel
and tuned carrier are also indicated. Following it states the type of carrier (data or pilot).
Finally, the type of DVB-T/H (SFM or MFM) broadcast network used in transmission
appears.
The transmission quality is visualised in a qualitative way using a colour range for
the symbol density concentrated in a certain area. This colour coding goes from
black (no symbols) to red (maximum density), and runs from blue to yellow in
ascending order.
A greater dispersion of the symbols indicates greater level of noise or worse signal
quality.
If concentration of symbols or noise appears is indicative of good carrier/noise ratio
or absence of problems as phase noise, etc.,.
5.15.1.1

Zoom, scroll and erasing functions

The TV EXPLORER II / II+ also includes, a ZOOM function to enlarge graphic
representation over one single quadrant. Select the SCROLL option to move the focus
over the whole viewing area using arrow cursors
graph screen or SHARP option to increase the image clearness.
DESPLAZAR: PULSAR ENCODER
MPEG-2 TS DVB-T
Figure 42.- Zoom x2 constellation diagram.
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USER'S MANUAL. TV EXPLORER II/II+
[6] key, CLEAR option to reset the
MODULATION:
DVB-T/H (64 QAM)
F: 794.00 MHz
CH: 66
CARRIER: 0
TYPE: data
DECAY: 16
ZOOM:x2 CLEAR
NOTE
12/2013