Fluke PM3370B user manual Analog Mode, Alternate and chopped modes are shown in the figures below

5 - 8 FUNCTION REFERENCE

The alternate and chopped modes are shown in the figures below.

ALTERNATE MODE

.....

MAT4203

CHOPPED MODE

.....

Key sequence:

TB MODE alt chop

Toggle softkey to select ALTernate or CHOPped mode.

ST6845

9303

ANALOG MODE

Description:

You can use the yellow ANALOG key to switch from the analog mode to the digital mode and back at any time. The signal acquisition and display functions of both operating modes are very similar. Depending on the nature of the signal used or the choice of the measurement, you may prefer the analog mode.

This is especially true for the following types of signals:

•amplitude modulated signals

•frequency modulated signals

•fast sweeps

•long serial data streams

•most video signals

•observing signal changes (e.g., adjustments)

The same waveform is usually displayed in the same manner, whether you select the analog or the digital mode. However, some functions are not implemented in both modes. For instance, the digital mode permits the viewing of pre-trigger information. The digital mode also offers auto-range for main time base and vertical channels. These functions are not available in the analog mode.