Tektronix Camcorder 1780-R Uživatelský manuál stáhnout pdf (Strana 143)

Measurements

1780R-Series Operator’s Manual

4–31

R–Y Sweep Measurement

Enter R–Y Sweep Mode

Push the MEASURE button to enable the Measurement menu,

shown in Figure 4–1.

Touch <R–Y SWEEP> on the screen.

Vectorscope and waveform displays are enabled and the instrument

is now configured as shown in Table 4–8.

Table 4–8: R–Y Sweep Mode Front-Panel Configuration

VECTORSCOPE Vector or SCH Selected by operator. Other choices locked.

WAVEFORM Waveform display enabled, other choices locked.

INPUT Status does not change

REFERENCE Status does not change

FILTER Locked

WFM SWEEPS Two Field is selected. Other choices may be made by

operator.

GAINS Gain control settings selected by operator are saved and

reinstated each time the R–Y Sweep mode is enabled.

WAVEFORM POSITION Horizontal and Vertical Position control settings selected by

operator are saved and reinstated each time the R–Y

Sweep mode is enabled.

VOLTAGE & TIMING

CURSORS

Both Voltage and Timing cursors are available

Exit R–Y Sweep Measurement Mode

To exit the R–Y Sweep mode, push the MEASURE button again. All

instrument settings return to their previous state.

R–Y Sweep Mode Information

The 1780R-Series R–Y Sweep mode provides a voltage-versus-time

display (on the waveform monitor CRT) of the vectorscope R–Y

demodulator output.