Trigger Mode; 2 Use As A Digital Storage Oscilloscope.4- I; Vertical Mode - Philips PM3375 Operation Manual

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4 APPLICATIONS
4.2 USE AS A DIGITAL STORAGE OSCILLOSCOPE
To use the instrument as a digital storage oscilloscope three main functions
should be defined:
- Vertical mode
- Horizontal mode
- Trigger mode
First ensure the oscilloscope is operating in the digital mode (DIGITAL MEMORY
indication in LCD is on), if not then press the key DIGITAL MEMORY.
By pressing the AUTO SET key the oscilloscope will automatically set the main
functions to the most convenient setting.
Further adjustments should be made by operating the keys. In DIGITAL
MEMORY mode there are more functions available than in the analog mode.
The use of the identical analog functions is described in Section 4.1 "Use as an
Analog Oscilloscope".
The analog functions which are not available in DIGITAL MEMORY mode are-
ADD, ALT/CHOP, X DEFL, COMP TRIG, X VAR.
In this section only the DIGITAL functions are described.
4,2.1. VERTICAL MODE
In vertical mode the following additional choices can be made:
- Dotted or Joined display
by pressing the DOTS key.
In digital memory mode the traces are built-up by "dots" of samples. Selection of
"dotted" or interpolated (dotjoined) display can be made.
In dotjoined mode the dots are interconnected by a line, so the display appears
continuous.
In dotted mode every dot is displayed separately. The vertical resolution is
256 dot positions over 10 divisions, the horizontal display resolution is 1000 dot
positions over 10 divisions when the expansion factor is x
1
.
4.2 USE AS A OICITAL STORAGE OSCILLOSCOPE