Televes FSM 500, Руководство пользователя

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3.3.4.3.- Measurements
The measurements are displayed at the bottom of the screen. While any measurement is being
viewed, the tuned frequency can be varied by turning the rotating knob. This means that the
measurement can be carried out with different frequencies or channels.
When a measurement is selected, the texts automatically disappear from the menus so that
they do not stop the user from seeing the selected measurement and the signal spectrum
properly.
The measurements submenu in spectrum mode is the same as the submenu in TV mode:
3.3.4.3.1.- Analogue
3.3.4.3.1.1.- Level
The measurement of the level is seen on the lower left-hand part of the screen. The frequency
that is used for this measurement is the spectrum’s central frequency (see the mark). If you vary
the tuned frequency with the rotating knob, you will see how the level measurement also
changes.
Figure 95.- Signal level
3.3.4.3.1.2.- V/A
The measurement of the audio carrier level/ video carrier level ratio is displayed on the lower
right-hand part of the screen. The spectrum’s central frequency is taken as the carrier
frequency, and the audio carrier level is measured in the frequency that is indicated in the audio
carrier selection (this function is in
TV Mode - Sel. Audio Carrier).
On the left-hand side, you can see the measurement of the central frequency level.
Multimetter FSM 500 Ref. 5903
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