Monitor Audio Vector User Manual download pdf (Page 72)

Appendix A: Performance Specification

A–6

WFM 90 & WFM 91 User Manual

A-5.

Vector mode

CATEGORY

DESCRIPTION

Chrominance Processing

Nominal Subcarrier Frequen-

cy (F

SC

)

REF:

NTSC: 3.579545 MHz.

PAL: 4.43361875 MHz.

Chrominance Processing

Chrominance

Bandwidth

REQ: Upper –3 dB Point: F

SC

+500 kHz,

"100 kHz.

Lower –3 dB Point: F

SC

– 500 kHz,

"100 kHz.

Chrominance Processing +V

Mode

(Applicable to PAL operation

only)

REF:

+V-type display as selected by front-

panel button. When pushed, V axis is

inverted at a 1/2 line rate to produce

a single vector display.

Display Vector Phase Accu-

racy

REF:

"1.25°.

REF:

Measured with color bar signal.

Display Vector Gain Stability

REF:

Typically "2.5%.

Display Quadrature Phasing

REF:

Typically "0.5°.

Display Differential Phase

REF:

"1°.

REF:

Measured with 140 IRE (1 V) linearity

signal (5 step, 10 step, or Ramp) with

40 IRE (300 mV) of subcarrier.

Display Differential Gain

REF:

"1%.

REF:

Measured with 140 IRE (1 V) linearity

signal (5 step, 10 step, or Ramp) with

40 IRE (300 mV) of subcarrier.

Subcarrier Regenerator Pull-

In Range

REQ: NTSC: "50 Hz of F

SC

.

PAL: "10 Hz of F

SC

.

REF:

Subcarrier Regenerator free-runs in

absence of appropriate signal. Refer-

ence can be burst of either displayed

signal or external reference signal.

Subcarrier Regenerator Pull-

In Time

REF:

Pull-In Time: Within 1 second, with

subcarrier frequency within 50 Hz

(10 Hz for PAL) of F

SC

.

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