Model 122A Sect. I1 Page 7
ALTERNATE SWEEP OPERATION
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Useful for observing higher frequency signals triggering even when the two signals ares
(above approximately 2 kc). related in frequency. When operating in this
manner the intensity of the traces will be
reduced if the traces are separated on the
1. Connect signal to two red terminals of screen. This may be eliminated by adjusting
channel A. the VERTICAL POSITION controls so that
the traces overlap. Usually operation will
2. Connect signal to two red terminals of involve signals related in frequency. Also,
channel B. if it is desired to maintain phase information
between the two signals being viewed, it is
3. Set VERT. PRESENTATION to ALT. Use necessary to use external triggering. If this
this method of presentation for fast sweep is the case, use external triggering. It is
speeds. Since each is individually triggered, then possible to separate the traces without
this presentation can be used with internal intensity reduction.
Figure 2-7 |
ACEC
