Using The Attenuator; Using The Modify Keys; Figure 1-1 The Attenuator Keys - Agilent Technologies 8156A Operating And Programming Manual

1.1 Using the Attenuator

NO T E Before using the instrument, you should make sure that it is properly
warmed up. The instrument is properly warmed up when it has been
switched on for a minimum of 45 minutes. Failure to do this can cause
errors of up to 0.04dB in the attenuation.
Figure 1-1 The Attenuator Keys
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Getting Started
Using the Attenuator
Set the attenuation of the filter using A
(wavelength), and C (calibration factor).
AL
The attenuation factor and the calibration factor set the position of
the filter. The calibration factor allows you to offset the value of the
attenuation factor.
Att(dB) = Cal(dB) + Attenuation
In addition, you can use D
ISP
attenuation factor to the calibration factor.

Using the Modify Keys

There are four modify keys on the front panel of the attenuator.
(attenuation factor), λ
TT
(dB)
filter
→ C
to transfer the current
AL
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