Keysight 1158 Series, Руководство по эксплуатации и обслуживанию, Страница: 11 / 31

Keysight 849x and 1158x Operating and Service Manual 11
General Information
Attenuator overview
The 8490D/G, 8491A/B, and 8493A/B/C are small, light-weight, low-power, 50-ohm coaxial fixed
attenuators.
The attenuators cover broad frequency ranges and choice of connector types. Each model comes
with Options to accommodate various attenuation values as shown in Table 1 .
Table 1 List of coaxial fixed attenuators
The Option number indicates the attenuation value. For example, Option 003 indicates 3 dB
attenuation, Option 010 indicates 10 dB attenuation, and so on.
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).
Model Option Frequency range Connector type
8490D 003, 006, 010, 020, 030, 040 DC to 50 GHz 2.4 mm (m), (f)
8490G 003, 006, 010, 020, 030, 040 DC to 67 GHz 1.85mm (m), (f)
8491A 003, 006, 010, 020, 030, 040, 050, 060 DC to 12.4 GHz Type N (m), (f)
8491B 003, 006, 010, 020, 030, 040, 050, 060 DC to 18 GHz Type N (m), (f)
8493A 003, 006, 010, 020, 030 DC to 12.4 GHz SMA 3 mm (m), (f)
8493B 003, 006, 010, 020, 030 DC to 18 GHz SMA 3 mm (m), (f)
8493C 003, 006, 010, 020, 030, 040 DC to 26.5 GHz 3.5 mm (m), (f)