Keysight U8903B User Manual page 384

7 Test Sequence Application
Table 7-53 Receiver Sensitivity > Signal Analysis settings menu description (continued)
Menu Description
Press the Deemphasis softkey to select the de-emphasis filter.
– None
Deemphasis – 50 μs
– 75 μs
– Custom
Press the Notch Fil ter softkey to configure the notch filter settings.
– HP8903B
Enable or disable the HP8903B notch filter mode.
– Custom Notch
Notch Fil ter Enable or disable custom notch filter.
– Center Freq
Set the center frequency value. This is only available when the Custom Notch is enabled.
– Bandwidth
Set the bandwidth value. This is only available when the Custom Notch is enabled.
Press the Average Points softkey to set the number of measurement readings to be used for the average calculation. This
Average Points is useful for noisy signals. Applying the average points will smooth out the fluctuations introduced by the noise that causes
the inconsistencies in the measurement reading.
Press the Sample Size softkey to select the number of samples to be acquired for the measurement.
– 2048
– 4096
– 8192
– 16384
– 32768
Sample Size
– 65536
– 131072
– 262144
– 524288
– 1M
– 2M
Press the Input Range softkey to configure the input range settings.
– Auto Range
Enable or disable the auto input range.
If auto range is enabled, each analog channel input range is determined automatically, based on the level of the input
signal. If the input signal level changes beyond the ranging threshold, auto range will cause the input ranging circuits to
move up or down for a proper ranging.
If auto range is disabled, you can set a fixed input voltage range for each analog input channel.
Input Range
– Track 1st Ch
If Track 1st Ch is enabled, all the other channels will be set to follow the channel 1 range setting. Any changes made to
channel 1 range setting will be reproduced in the other channels. Disable the Track 1st Ch to set the individual
channels.
– Voltage Range
Set the input voltage range.
384 Keysight U8903B User's Guide