Promax RANGER Neo 2, Руководство пользователя

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October 2021 75 Chapter 4: RF SIGNAL TUNING
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FULL SPECTRUM (SPECTRUM 3/3) WITH MARKER
Figure 54.
1 Horizontal reference line: It shows level of signal.
2 Vertical axis: It indicates the signal level.
3 Vertical reference line: It indicates the frequency.
4 SPAN: It is the frequency range displayed on the horizontal axis. Span values
available changes according to Resolution Bandwidth selected. The current
span value appears at the bottom right of the screen. To switch among span
default values use the joystick (left, right) in span mode (SP). For example,
for RBW = 100 kHz default span values are Full (full band), 500 MHz, 200
MHz, 100 MHz, 50 MHz, 20 MHz and 10 MHz. To change to any other span
value in that frequency range use the "span" option in the Tuning menu (
key).
5 Reference Level: It is the power range represented on the vertical axis. To
change use the joystick (up, down; 5 dB steps). This equipment has an option
to activate the automatic adjustment of the reference level, so it detects the
optimal reference level for each situation. In automatic mode, it sets the
optimum reference level each time it enters the spectrum mode. This option
can be enabled or disabled through the PREFERENCES menu and
Measurements tab.
6 Cursor: Red vertical line that indicates position during the channel or
frequency tuning. When a digital signal is detected, there is a triple cursor
that shows the frequency for the signal locked and two vertical lines that
shows the bandwidth of the digital carrier. In the case of a GENERIC signal,
the bandwidth shown is the one selected by the user on the "Signal
Parameters" menu when pressing the key. To change frequency/channel