Planar IT-088, Руководство по эксплуатации

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By pressing «F4» you can enable indication of the channel tuning frequency instead of
the name and number of the channel (index 1). To restore the view, press «F4» again.
When you operate with a channel plan, the scanning will be fulfilled only for the selected
channels. You can shift the position of the marker by « ◄ » and « ► » keys according to the
channels from the channel plan. Also you can set the marker to any channel using the
alphanumeric keypad.
4.3.6. RIPPLE Measurement Mode
The icon in the main menu refers to this mode. In this mode the screen displays
TV signal levels as vertical bars and two horizontal dotted lines between the peaks of the
two selected channels, which show the ripple. See figure 4.8:
Figure 4.8
Index 1 shows the channel number indicated by the marker (index 5), represented as a
vertical dashed line. The reference marker (index 2) indicates the channel number
displayed in position indexed 4. The marker represents a triangle at the top of the screen.
Between the peaks of the selected channels the ripple is displayed. Index 3 shows the
value of the difference between the selected channels.
You can navigate the marker by means of « ◄ » and « ► » keys. You can enter the
marker location using the alphanumeric keypad. After you have entered the channel
number, press
«MENU/ENTER» .
In this mode you can adjust the magnitude scale parameters: scale division and shift.
Select the required parameter by «F1» or «F2» (section 4.3.3) and set the value by « »
and « » keys. To set the location of the reference marker press «F3». Base marker
message will appear on the screen. Use « » and « » arrows to set the reference marker
location.
By pressing «F4» you can enable indication of the channel tuning frequency instead of
the name and number of the channel (index 1). To restore the view, press «F4» again.
When you operate with a channel plan, the scanning will be fulfilled only for the selected
channels. You can shift the position of the marker by « ◄ » and « ► » keys according to the
channels from the channel plan. Also you can set the marker to any channel using the
alphanumeric keypad.
4.3.7. DVB-T/H TABLE Measurement Mode
The icon in the main menu refers to this mode. Before measuring the
Demodulator tuning message will appear on the screen, and in several seconds the
DVB-T/H demodulator will be activated. In case any error has been detected during
startup, the screen will show
Tuning error message and the Analyzer will return to the
main menu (methods of error correction are given in section 6). After successful startup,
DVB-T/H signal quality measurements in the form of a table will appear on the screen.
The main menu of the mode displays the table of the parameters featuring the input
DVB-T/H signal quality. The view of the screen is shown in figure 4.9: