Tektronix 1740A/1750A Manuel d'utilisateur télécharger pdf (Page 89)

Basic Measurements

1740A/1750A Series Waveform/Vector Monitor User Manual

4-8

Figure 4-4. Vector targets --- NTSC values (PAL values in parentheses).

PAL

For the 1741A and 1751A graticule, each PAL chrominance

vector related to the +V burst terminates in targets consisting

of two boxes (a small box inside a large box). See

Figure 4-4. The large box represents ±10° centeredonthe

exact chrominance phase and ±20% of chrominance ampli-

tude centered around 100% standard ampl itude. The dimen-

sions of the inner target show ±3° and ±5% of chrominance

amplitude; the vectors associated with the --V burst terminate

in the smaller targets.

Dual-Standard

The 1745 and 1755 graticule is a composite of the PAL and

NTSC graticules. There are two inner targets within the

larger target; the PAL target, and the NTSC target. The

NTSC target is inside the PAL target.

1 2 ... 84 85 86 87 88 89 90 91 92 93 94 ... 142 143

Pas de commentaire

Tektronix 1740A/1750A Manuel d'utilisateur Page 89