Technical data

566 Chapter 19
W-CDMA or W-CDMA (with HSDPA) Analyzer
W-CDMA or W-CDMA (with HSDPA) Analyzer Measurement Settings
W-CDMA or W-CDMA (with HSDPA)
Analyzer
your test set to settle by performing several sweeps first.
NOTE Agilent Technologies recommends that you set Meas Time to Slow. If Meas Time is
set to Medium or to Fast, there is insufficient time to collect enough data to generate
an accurate equalization estimate. Press [Setup], then [Meas Time] to set your
measurement speed.
Even with Meas Time set to Slow, you may see some instability for a short time
until the test instrument has settled.
If you set IF Equalizer to
Run, the data from the current data capture is used to
generate an approximate correction for any IF slope. This correction is repeatedly
averaged to remove the effects of noise.
If you set IF Equalizer to
Hold, the correction applied is that from the last time Run
mode was used. The test set will not update or adjust the correction being applied.
If you have not yet performed a measurement with IF Equalizer Status set to Run,
there will be no correction data present in the test set, and no correction will be
applied.
When IF Equalizer is
Off, no attempt is made to correct any flatness error inherent in
the test set.
Adding a Marker
Markers can be used on traces to help you visually track up to four signals. Each
marker has the following settings:
• Type: Provides three options, including:
— Off
Step Notes
1[Setup]
2 [IF Eq Status] Each time you press this softkey, the
selected option changes.
You can choose between
Off (no flatness
correction is applied),
Run (flatness
correction is continually revised and
updated) and
Hold (a fixed flatness
correction is applied).