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Specifications
The specifications refer to the performance standards or limits against which
the coaxial fixed attenuators are tested.
Table 3
Specifications for 8490D Coaxial Fixed Attenuator
Minimum Attenuation in dB
1
dc to 50 GHz
Option
003
006
010
020
030
040
1
dc to 26.5 GHz
Option
003
060
010
020
030
040
Maximum Input Power
Connectors (50 Ω)
Dimension (Length)
Diameter
1. Option numbers indicate the attenuation values. For example, option 003 indicates 3
dB attenuation, option 010 indicates 10 dB attenuation and so on.
849x and 1158x Operating and Service Manual
dc to 26.5 GHz
2.5
5.4
9.4
19.2
29.2
38.2
Maximum SWR
26.5 to 40 GHz
1.15
1.15
1.15
1.15
1.15
1.08
1 W avg, 100 W pk
2.4 mm
1.06 in. (27 mm) for options 003, 006, 010, 020
1.14 in. (29 mm) for options 030, 040
0.312 in. (8 mm)
Specifications
Maximum Attenuation in dB
26.5 to 50 GHz
3.9
6.9
10.9
11.3
21.3
21.7
31.3
31.7
42.5
42.5
40 to 50 GHz
1.25
1.45
1.25
1.45
1.25
1.45
1.25
1.45
1.25
1.45
1.15
1.25
4.8
7.8
3
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