4-33
Note: The <1kHz setting does not include the 1Hz component, it only
includes 50 to 1000Hz. Information displayed in the Hum
mode is as follows:
NOTE: HUM measurements taken while the desktop charger is in
use will affect the HUM reading. For the most accurate
reading disconnect the charger prior to taking HUM
measurements.
4.9 MODULATION
This function allows you to monitor the video depth of modulation in
graphical and precise numerical format. A marker is placed at the
optimal modulation level (NTSC 87.5%, PAL 90%) to assist techni-
cians while making adjustments.
An
Audio
and
Depth
soft key is used to select the type of modulation
to be displayed.
An additional feature is the ability to listen to the audio modulation
of the tuned channel or frequency. Use the
Audio
soft key to listen to
the audio modulation.
Use the
UP
and
DOWN
arrow soft keys to adjust the volume.
