Spectrum emission mask testing – GW Instek GSP-930 User Manual User Manual
Page 146

GSP-930 User Manual
144
highest value (Abs or Rel) is used as the
Pass/Fail judgment. The trace points under
the limit indicate a pass.
Case2: If the additional limit is used, the
higher value from case1 is compared to the
additional limit. The lowest one is used as the
pass/fail judgment.
Spectrum Emission Mask Testing
Description
For spectrum emission mask testing, the GSP-
930 has pre-defined testing parameters for
3GPP, 802.11x and 802.16. The GSP-930 also
allows you to perform user-defined SEM
testing.
Operation:
1. Press
Meas
> SEM[F5]>SEM[F2] and turn SEM
on.
Any other measurement mode will automatically be
disabled.
2. The display splits into two screens. The top
shows the trace with the absolute and or
relative masks. The bottom screen shows the
SEM measurement results.