Basic Measurements

R

°

°

° °

°

°

°

°

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° centered on the exact chrominance phase and ±20% of chrominance amplitude centered around 100% standard amplitude. The dimensions 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.

4-8

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