208 Chapter4
Key Function Descriptions
Key Descriptions
PEAK METHOD The sweep is changed from one
sweep, to cover the range of all
alternate and adjacent channels, to one
sweep for each channel under test. In
the faster acceleration, the sweep time
is controlled to allow the same number
of burst RF cycles in each sweep as
would occur in the normal sweep if the
spectrum analyzer had 400
measurement cells in its display; the
peak is measured over time intervals
equivalent to the burst period. The
results should be equivalent to those of
a spectrum analyzer with 400 display
points. International standards (MKK
method) are written around this so the
faster mode has no errors due to
acceleration.
In the fastest acceleration mode, the
sweep time is further decreased by a
factor of two.
2BW METHOD The faster acceleration mode is not
available. The fastest acceleration
changes the two bandwidth method to
the burst power method. The burst
power method is much faster and it
provides results that are equivalent
with less than 0.10 dB difference.
BURSTPWR METHOD No acceleration is available.
GATED METHOD The faster acceleration mode is not
available. In the fastest acceleration,
the sweep is changed from one sweep to
cover the range of all alternate and
adjacent channels, to one sweep for
each channel under test. The sweep
time is controlled to allow the same
number of burst RF cycles in each
sweep as would occur in the normal
sweep if thespectrum analyzer had 400
measurement cells in its display; the
peak is measured over time intervals
equivalent to the burst period. The
results should be equivalent to those of
a spectrum analyzer with 400 display
points.