12
Keysight 849x and 1158x Operating and Service Manual
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
Table 2
.
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 coaxial fixed attenuators
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