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General Information
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Keysight 849x and 1158x Operating and Service Manual
Features
– Ruggedness, reliability, and small size make these attenuators useful both on
the bench and in systems applications.
– Accuracy and low SWRs make the attenuators well suited for extending the
range of sensitive power meters for higher power measurements and
applications such as calibration standards and RF substitution measurements.
– Each attenuator is tested with a vector network analyzer for attenuation, and a
plot of actual attenuation values is printed on the label attached to the body of
the attenuator (except for the 8490D/G and 8493C).
Optional calibration data
Option UK6 calibration data, which is generated by a network analyzer, provides a
tabulated list of attenuations and reflection coefficients in which the number of
frequency points provided depends on the model number and frequency range.
Option UK6 calibration data is available when attenuators are first purchased and
recalibrations are available through Keysight Technologies Service Centers.
Attenuator sets
The 11581A, 11582A, and 11583C are boxed sets of four coaxial fixed attenuators
of 3, 6, 10, and 20 dB as shown in
Each attenuator set comes with a printed calibration report that gives the actual
attenuation and reflection coefficient of each port at frequencies from 100 MHz to
12.4 GHz for 11581A, 100 MHz to 18 GHz for 11582A, and 100 MHz to 26.5 GHz
for 11583C, at increments from 100 to 500 MHz.
Table 2
List of attenuator boxed sets
Model
Contents
Frequency range
11581A
8491A (3, 6, 10, and 20 dB)
DC to12.4 GHz
11582A
8491B (3, 6, 10, and 20 dB)
DC to 18 GHz
11583C
8493 C (3, 6, 10, and 20 dB)
DC to 26.5 GHz
