Agilent Technologies E4406A, User Manual

Page: 102 / 230

102 Chapter 4
Making Measurements
Making the Waveform (Time Domain) Measurement
• Short (16 bit) - Data is packed by every 16 bits.
• Medium (24 bit) - Data is packed by every 24 bits.
• Long (32 bit) - Data is packed by every 32 bits.
ADC Dither - Allows you to toggle the ADC dither function
between
On
and
Off
. Activation of the ADC dither results in better
amplitude linearity and resolution in low level signals. However,
it also results in reduced dynamic range. ADC dither is set to Off
by default.
Decimation - Allows you to toggle the decimation function
between
On
and
Off
and to set the decimation value. Decimation
allows longer acquisition times for a given bandwidth by
eliminating data points. Long time captures can be limited by the
transmitter tester data acquisition memory. Decimation numbers
1 to 4 describe the factor by which the number of points are
reduced. A decimation figure of 1, which results in no data point
reduction, is the default.