Numeric Display - Wavetek IS-136 MS Operating Instructions Manual

IS-136 MS

Numeric display

HOW?
RESULt5 Freq.Off.
RESULt6 Power
RESULt7 ∆P/Symbol
RESULt8 Origin offs.
RESULt9 RMS vector error
D
RESULtA Err. 1st 10 Symbols Average residual vector error.
RESULtB Max. vector error
RESULtC Max. phase err. pos. Largest phase error in direction of rotation
RESULtD Max. phase err. neg. Largest phase error opposite to direction of rotation
RESULtE Min. magnitude
RESULtF Max. magnitude
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.
10-36
Press in the constellation display.
{NUMERIC}
Select the result mode (see examples):
{averag = Results shown are averaged from nine
e} bursts.
{max_ho = Results shown are maximum figures during
ld} 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 . The display shows the test results.
{RUN}
End the test with
{STOP}
back to the constellation display or
test mask.
Test Results
Same result as in constellation display.
Same result as in constellation display.
Same result as in constellation display.
Same result as in constellation display.
Same result as in constellation display.
Largest residual vector error.
(counterclockwise).
(clockwise).
Smallest magnitude.
Largest magnitude.
Examples of result modes
Modulation Quality
. After this
{GRAPHIC}
{RETURN}
takes you
to the basic