37
4.4.4.3. Spectrum Data Logger Page Viewing
To view a SDL page, press
«F1»
. Display settings should be made the same as in
spectrum measurement mode (section 4.3.3). The values that are outside of the scan
range are shown as zeroes.
4.4.4.4. Spectrum Data Logger Page Deleting
To delete a SDL page from the memory, select the required page and press
«F2»
key.
A confirmation dialogue box will appear on the screen (figure 4.17). To confirm the deleting
of the page, press
«F4
» key. To cancel the deleting, press
«F1»
key.
4.4.4.5. Spectrum Data Logger Page Creating
To create a new SDL page, select a page and press
«F3»
key. Scan limit selection
screen will appear (figure 4.27). Limits can be set by frequency (press
«F1»
) or by
channels (press
«F2»
). You can either select the limits by
« »
and
« »
keys, or enter the
required values by alphanumeric keypad. The edited value will be indicated in flashing
characters. To set the attenuation of the built-in attenuator (in the second line on the
screen) use
«F3»
and
«F4»
keys. If you select the values
0, 20
or
40
dB, the scanning will
be performed with this set input attenuation. If you select
auto
, your Analyzer prior to
scanning will measure signal level in the channels within the scan range, and will
determine the optimal value of the attenuation. If you re-scanning the page, the attenuation
will take on the last value.
After you have set all the parameters, press
«MENU/ENTER»
key. Comment entering
screen will open. Enter comments to the SDL page up to 16 characters long. Instructions
for entering and editing of the text read in section 4.4.2.1. After you have finished press
«MENU/ENTER».
The progress indicator of the spectrum scanning will appear. When the
scanning has been completed your IT-088 will save the page (with the time and date), and
turn to viewing mode of the recorded page. You can access the table of SDL pages by
pressing
«MENU/ENTER».
The scanning process can be interrupted by
«MENU/ENTER»
key. In this case the current page will be deleted.
Figure 4.27
4.4.4.6. Spectrum Data Logger Page Scanning
To re-scan a SDL page, select the required page and press
«F4»
key. The progress
indicator of the spectrum scanning will appear on the screen. After the scanning has been
completed, your IT-088 will save the page, and turn to viewing mode of the recorded page.
You can access the table of SDL pages by pressing
«MENU/ENTER».
If you select re-
scanning for an empty page, the preparation procedure will be the same as described in
section 4.4.4.5.
Содержание IT-088
Страница 1: ...IT 088 DIGITAL DVB T SIGNAL ANALYZER OPERATING MANUAL...
Страница 2: ...2 31 03 10...
Страница 82: ...82...
