AP01-HD_rev.09_UK
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4.9.2.2.
BANDWIDTH
It selects the subcarrier bandwidth. The available values are: narrow (for stereo channels),
medium (for normal mono channels), wide (for over-modulated channels) and extra wide
(for channels with very high deviation).
To carry out setting:
•
select BANDWIDTH from the SOUND menu and press
ENTER
.
•
select the desired value turning the shaft encoder and press
ENTER
.
Press the
SOUND
key to exit.
4.9.2.3.
DEEMPHASIS
It selects the kind of deemphasis. The available values are: Flat, j17, 50µs, 75µs.
To carry out setting:
•
select DEEMPHASIS from the SOUND menu and press
ENTER
.
•
select the desired deemphasis turning the shaft encoder and press
ENTER
.
Press the
SOUND
key to exit.
4.10.
SPECTRUM ANALYZER
To use the instrument as a spectrum analyzer press the
SPECT
key.
Partial and total analysis of all terrestrial TV bands (L-M-H) and the SAT band can be carried
out.
Press the
MENU
key to display, on the right side of the screen, the menu to set the
following functions:
•
SPAN
:
to select the mode of band analysis; it enables to partially or totally analyze
the selected band;
•
FILTER BW
: to select the measurement filter width between 1 MHz and 100 kHz;
•
F. VIDEO
:
to activate and deactivate the video filter;
•
BAND
: to select TV or SAT band;
•
MARKER
: to select the marker (analogue for level measurement, digital for power
measurement).
To select the desired option, turn the SHAFT ENCODER and then press
ENTER
to confirm
your selection. The displayed value flashes; turn the shaft encoder to select the desired
value and press
ENTER
to confirm it.
To exit menu and go back to normal functioning, press
MENU
.
4.10.1.
USE OF MARKERS
Press keys
2nd + MKR
to activate a second (yellow) marker which may be also located
inside the whole spectrum of the selected band. The screen will display, besides the
absolute signal levels corresponding to the two markers, the frequency interval between
markers and the difference of marked-signals level.
A yellow line for marker 1 and a red line for marker 2 highlight marker information.
Press keys
2nd + MKR (SPECT)
again to reverse selection between active marker and
fixed marker. A triangle at the beginning of each line indicates the active marker.
A third information line indicates “PEE: --- m PE: --- m”,
On this functioning mode you can use the two markers to measure the step.
Press keys
2nd + MKR
another time to go back to normal functioning.
