HP 8168E - Page 92

5
[:SOURce]:POWer:ATTenuation
Attenuator
Syntax [ :SOURce ] :POWer:ATTenuation < wsp >
< value > j MIN j DEF j MAX
Description This command sets the level of attenuation of
an inbuilt optional attenuator, if this is installed.
The specied range for the attenuation is
0.00dB to 40.00dB.You can set to the minimum,
default or maximum programmable values by
sending MIN , DEF ,or MAX , respectively, instead
of the value.
The resolution of the attenuation is specied
to be 0.1dB. The actual resolution of the
attenuator is better than this (typically 0.04dB).
To allow you access to this resolution, you can
specify the attenuation to two decimal places
with the HP-IB command.
You need to be in the Attenuation Mode (see
\[:SOURce]:POWer:ATTenuation:AUTO")
for this value to have an aect. The
output power is a combination of
this value and the laser output power (see
\[:SOURce]:POWer[:LEVel][:IMMediate][:AMPlitude]").
In this respect, this command does not conrm
to the SCPI standard. The SCPI standard
requires that entering an explicit value for the
attenuation switches the attenuation mode OFF .
The default units are DB .
[:SOURce]:POWer:ATTenuation?
Attenuator
Syntax [ :SOURce ] :POWer:ATTenuation? [ MIN j DEF j MAX ]
Description This query returns the attenuation level of the
optional attenuator if this has been installed.
5-22 Remote Commands