Tektronix 2245A - Behavior for Horizontal Mode Changes

Operators Familiarization
TIME—Press to measure the equivalent time difference between the two
vertical cursors displayed in the A Horizontal MODE or the two time delays
in ALT or B Horizontal mode. The measured time difference between the
two cursors or delays Is displayed in the crt readout.
If the Horizontal MODE is X-Y, pressing the TIME button causes the mes
sage “USE A OR ALT OR B MODE” to be displayed for two seconds.
Changing the Horizontal MODE to X-Y after TIME has been activated, will
cancel the measurement with no message.
1 /TIME—Measures the time difference in frequency units (hertz) between
the cursor positions in A Horizontal MODE or between the delay-time set
ting and the delta-delay time setting in either ALT or B Horizontal MODE.
Measurement points are the left ends of the two intensified zones in ALT
Horizontal MODE.
Behavior for Horizontal Mode Changes
If the Horizontal MODE Is changed to a mode that cannot be used for the
active measurement, that measurement will be canceled without a mes
sage being displayed. Returning to a mode that may be used and pressing
the measurement button will restore the canceled measurement mode. See
Table 3-1 for compatible and Incompatible modes.
Table 3-1
Behavior for Horizontal MODE Changes
Measurement
Mode
Compatible
Horizontal
Modes
Incompatible
Horizontal
Modes
CURSOR VOLTS
A, X-Y ALT, B
TIME and 1/TIME
A, ALT, B X-Y
2245A Operators
3-7