Visual Carrier Level And Visual-To-Aural Level Difference Test Description - HP 8591C User Manual

Visual Carrier Level and Visual-to-Aural Level
Difference Test Description
The visual carrier level test measures the peaks of the visual carrier, as well
as the visual-to-aural level difference.
To perform the visual carrier level and visual-to-aural level difference test, the
analyzer does the following:
1. Changes the resolution bandwidth, video bandwidth, and sweep time of
the analyzer to capture the levels accurately.
2. Measures the visual amplitude level and aural carrier difference.
Figure 8-1 shows the analyzer measuring the visual carrier level and aural
carrier difference.
CHANNEL
34.4
PERK
LOG
CENTER 57.888
YRES GW 388 kHz
Figure 8-1. Measuring the Visual Level and Aural Carrier Difference
In channel measurement mode, the test runs continually and test results are
updated after each test cycle (after each sweep).
MKR
AT
. . . . . . .
SPAN 6.888 NHz
55.275 MHz
34.59
NEXT
CHANNEL
SCRRMGLO
YES NQ
FREQ
ON m
RT
8-3