Philips PM3350A - Horizontal Mode

4-8
4 APPLICATIONS
4.1.2. HORIZONTAL MODE
In horizontal mode the following selections can be made:
- Selection of X deflection or horizontal time-base
by pressing the X DEFL key.
In the X deflection mode the oscilloscope shows one signal to be displayed as a
function of another signal (X-Y graph).
The required X-axis signal is seiected by the TRIG OR X SOURCE key (A B EXT
or LINE).
The X-Y mode has a wide range of applications, for example:
- amplitude vs frequency of circuits and filters;
- output current vs input voltage of semiconductors;
- comparison of frequency or phase shift using Lissajous figures.
In horizontal time-base mode the display shows the measured signal vs time
(Y-t graph). The time coefficient can be selected with the TB UP-DOWN
key.
. Selection of horizontal time scale
by using the TB s.../is UP-DOWN key.
the VAR rotary knob, or
the X MAGN key.
With the TB s...>js UP-DOWN key you can make a selection of the time-base
speed In a 1-2-5 sequence.
With the rotary knob VAR you can make fine adjustments between the 1-2-5
steps.
With the X MAGN key you can expand the time-base 10 times.
By operating the X POS rotary knob the trace can be shifted across the screen in
horizontal direction.
4.1 USE AS AN ANALOG OSCILLOSCOPE