TDS5000B Online Programmer Guide
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CH<x>:PROBEFunc:EXTAtten
Description
This command is used to specify the input--output ratio, of external at-
tenuation or gain, between the signal and the instrument input channels.
The channel is specified by x. The value of x can range from 1 through
4 for four--channel instruments, or 1 through 2 for two--channel instru-
ments.
The query form of this command returns the user--specified attenuation.
Note that this command deals with an attenuation factor, not a gain fac-
tor, unlike CH<x>:PRObe? (This command returns a value independent
of the external attenuation). For example, if you specify a 20x attenua-
tion factor for channel 1, the commands return the following values
(assuming that a 1x probe is presently attached, since the external atten-
uation is used in combination with the probe attenuation):
CH1:PRObe:EXTA? 20.00E+0
CH1:PRObe? 1.0E+0
This command is equivalent to selecting Attenuation from the Vertical
menu, and then either viewing or setting Ext Atten.
Group
Vertical
Related Commands
CH<x>:PROBEFunc:EXTDBatten
Syntax 1
CH<x>:PROBEFunc:EXTAtten <NR3>
Syntax 2
CH<x>:PROBEFunc:EXTAtten?
Argument
H <NR3>
This is the attenuation value, which is specified as a multiplier in the
range from 1.00E--10 to 1.00E+10.
Example 1
CH1:PROBEFunc:EXTAtten 167.00E-3
This command specifies an external attenuation, which is connected
between the user’s input signal and the input of the probe attached to
channel 1.
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