# :CHANnel Probe Accessories Commands

:CHANnel Probe Accessories Commands

- :CHANnel:PROBe:ACCessories:ATTenuator:SELect
- :CHANnel:PROBe:ACCessories:ATTenuator:STATe
- :CHANnel:PROBe:ACCessories:DCBLock:SELect
- :CHANnel:PROBe:ACCessories:DCBLock:STATe
- :CHANnel:PROBe:ACCessories:ECABle:SELect
- :CHANnel:PROBe:ACCessories:ECABle:STATe

By specifying the probe accessories used on a channel, Infiniium can make the proper attenuation/gain/dB and other compensation adjustments and report measurement values as if the measurements were made before the accessories rather than at the oscilloscope's channel input.

When using a probe accessory that is not a known Keysight model, it can be considered external hardware, and you can specify its attenuation/gain/dB and other settings using the :CHANnel External Scaling Commands.