Chrominance To Luminance, More Information - HP 8591C User Manual

Channel Measurements
Making Channel Measurements
NTC 7 CUMPOSIT to select the NTC 7 composite test signal. To assist
in test signal identification a small schematic diagram of the test signal
is displayed at the top of the screen.
The result of the measurement is displayed on the analyzer display. An
offset of 170 ns is added to the result so that it will agree with tests done
using a demodulator with 170 ns of delay. Modulators should be set
for 170 ns precorrection. FCC requires measurements relative to this
precorrection. The FCC tolerance is +/-170 ns.
7. Press MORE INFO to display chrominance to luminance response
information. See Figure 2-16
CHANNEL
REF 6.903 m!J
I
CENTER
78.829
YRES BW 30.3 kHz
Figure 2-16. Chrominance to luminance, More Information
2-24
AT 10 dB
I
MHz
I
I
MEN1
SPAN 8 Hz