Adc Ranging - Agilent Technologies PSA Series User And Programming Manual

2.2.6.2 On
When is
ADC Dither On
dynamic range is reduced to make room for the dither. As a result, the noise floor of the
analyzer is somewhat compromised. So making measurements with ADC dither on gives
you better amplitude linearity, but turning ADC dither off gives you a lower noise floor
(better sensitivity).
Key Path:
Auto Couple
State Saved: Saved in instrument state
Remote Command:
[:SENSe]:ADC:DITHer[:STATe] ON
Example:
ADC:DITH ON
2.2.6.3 Off
When is
ADC Dither Off
ADC dynamic range is reduced to make room for the dither. As a result, the noise floor of
the analyzer is somewhat compromised. So making measurements with ADC dither on
gives you improved amplitude linearity. but turning ADC dither off gives you a lower noise
floor (better sensitivity).
Key Path:
Auto Couple
State Saved: Saved in instrument state
Remote Command:
Use [:SENSe]:ADC:DITHer[:STATe] OFF
Example:
:ADC:DITH OFF

2.2.7 ADC Ranging

Accesses the keys to set the ADC ranging to provide for the best signal to noise ratio
( ), or for the best FFT speed (
Bypass
Key Path:
Auto Couple
State Saved: Saved in Instrument State
Factory Preset: Autorange
Chapter 2
, the linearity of low-level signals is improved. However, the ADC
, the instrument noise floor is improved. If ADC dither is on the
Autorange
).
Instrument Functions: A - L
Auto Couple
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