Tektronix Camcorder 1780-R Bedienungsanleitung PDF herunterladen (Seite 129)

Measurements

1780R-Series Operator’s Manual

4–17

ICPM Measurement

Enter ICPM Measurement Mode

(Incidental Carrier Phase Modulation)

Push the MEASURE button to enable the Measurement menu,

shown in Figure 4–1.

Touch <ICPM> on the screen.

The instrument is now configured as specified in Table 4–4.

Table 4–4: ICPM Front-Panel Configuration

VECTORSCOPE Selected by operator

WAVEFORM Waveform display enabled, other choices locked out

INPUT Selected by operator

REFERENCE Locked

FILTER Low pass

WFM SWEEPS Locked

MAGNIFIER Automatically set to X25, other choices may be selected by

operator.

GAINS Calibrated gains

WAVEFORM POSITION Horizontal and Vertical Position control settings selected by

operator are saved and reinstated each time the ICPM

mode is enabled.

Exit ICPM Measurement Mode

To exit ICPM mode, push the MEASURE button again. All

instrument settings return to their previous state.

ICPM Measurement Information

ICPM is measured by observing an XY display of quadrature output

of a 1450 demodulator versus the video signal itself.

Measurements

1780R-Series Operator’s Manual

4–17

ICPM Measurement

Enter ICPM Measurement Mode

(Incidental Carrier Phase Modulation)

Push the MEASURE button to enable the Measurement menu,

shown in Figure 4–1.

Touch <ICPM> on the screen.

The instrument is now configured as specified in Table 4–4.

Table 4–4: ICPM Front-Panel Configuration

VECTORSCOPE Selected by operator

WAVEFORM Waveform display enabled, other choices locked out

INPUT Selected by operator

REFERENCE Locked

FILTER Low pass

WFM SWEEPS Locked

MAGNIFIER Automatically set to X25, other choices may be selected by

operator.

GAINS Calibrated gains

WAVEFORM POSITION Horizontal and Vertical Position control settings selected by

operator are saved and reinstated each time the ICPM

mode is enabled.

Exit ICPM Measurement Mode

To exit ICPM mode, push the MEASURE button again. All

instrument settings return to their previous state.

ICPM Measurement Information

ICPM is measured by observing an XY display of quadrature output

of a 1450 demodulator versus the video signal itself.

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