Tektronix 2247A

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Operators Familiarization
KEEP MENU ON WHEN S/R SELECTED? (Factory Settings default
Is NO.) Selecting NO clears the menu from the display when some
store/recall setup functions are selected.
Selecting YES keeps the Store/Recall Setup menu on the screen when
using the store/recall setup functions. The menu can be removed at
any time by pressing the CLEAR DISPLAY button once.
KEEP READOUT ON IN SGL SEQ? (Factory Settings default is NO.)
Selecting NO will keep the readout off in Single-~-Sequence Trigger
Mode. This mode Is useful for single-sequence waveform photography.
The readout Is displayed briefly after the sequence Is completed to
expose the film, then cleared to prevent overexposure.
Selecting YES keeps the readout on when In the Single-Sequence
Trigger Mode. This mode lets you view any of the measurements that
continue to be made during SGL SEQ trigger mode even If no
waveform Is being displayed. The front panel control settings may also
be made In SGL SEQ without having to select a different Trigger Mode
to see the readouts as the controls are changed. The measurement
readout Is especially useful for the Voltmeter measurements because
the signal on the selected input channel Is continually monitored.
(GATED Voltmeter measurements are not permitted In SGL SEQ
Trigger MODE.)
INITIALIZE TIME CURSORS/DELAYS? (Factory Settings default is
YES.) If YES is selected, with the following conditions:
le SEC 71, le 1/SEC 44, or I+ SET 360° I Is selected, and none
of the following conditlons Is true:
more than one channel is selected and the Horizontal MODE
Is not “A”, or
A Trig MODE Is VERT and Vertical MODE is ADD, or
more than one channel Is selected and the A Trig MODE Is
VERT, or
Horizontal MODE Is B and cursors have been selected,
the cursors or delays will be initialized as follows:
If the reference delay Is appropriate to the measurement mode, It
will be set Inside a window that extends from 0.25 division after
sweep start to one period of the trigger signal left of the 10th
division after sweep start, If this window exists. If there is no
window, It will be left at its original position.
2247A Operators 3-37