Wavetek STABILOCK 4031 - Numeric Display

Numeric display
HOW?

Press
{NUMERIC}
in the constellation display.

Select the result mode (see examples):
{averag
e}
= Results shown are averaged from nine
bursts.
{max_ho
ld}
= Results shown are maximum figures during
measuring time (peak-hold function). In-
applicable for results Power and Err. 1st
10 Symbols.
{normal} = Results shown are measured from one
burst.
The actual display mode is shown in the mask header.
You can only change the mode when testing is not in
progress.

Press
{RUN}
. The display shows the test results.

End the test with
{STOP}
. After this
{GRAPHIC}
takes you
back to the constellation display or
{RETURN}
to the basic
test mask.
Test Results
D
RESULt5 Freq.Off. Same result as in constellation display.
RESULt6 Power Same result as in constellation display.
RESULt7 ∆P/Symbol Same result as in constellation display.
RESULt8 Origin offs. Same result as in constellation display.
RESULt9 RMS vector error Same result as in constellation display.
RESULtA Err. 1st 10 Symbols Average residual vector error.
RESULtB Max. vector error Largest residual vector error.
RESULtC Max. phase err. pos. Largest phase error in direction of rotation
(counterclockwise).
RESULtD Max. phase err. neg. Largest phase error opposite to direction of rotation
(clockwise).
RESULtE Min. magnitude Smallest magnitude.
RESULtF Max. magnitude Largest magnitude.
Examples of result modes
normal Result field RMS vector error shows the average residual vector error
measured on 156 symbols (one burst). With Max. vector error you see
the largest residual vector error measured on 156 symbols.
average Result field RMS vector error shows the average residual vector error
measured on 9 ×156 symbols (nine bursts). With Max. vector error you
see the average of the largest residual vector errors measured on nine bursts.
IS-136 MS Modulation Quality
10-36