Specifications
849x and 1158x Operating and Service Manual
5
Table 5
Specifications for 8491A and 8493A Coaxial Fixed Attenuators
Attenuation Accuracy in dB
Option
1
dc to 12.4 GHz
003
±
0.3
006
±
0.3
010
±
0.5
020
±
0.5
030
±
1.0
040
2
±
1.5
050
2
±
1.5
060
2
±
2.0
SWR
Option
1
dc to 8 GHz
8 to 12.4 GHz
003
1.25
1.35
006
1.2
1.3
010
1.2
1.3
020
1.2
1.3
030
1.2
1.3
040
2
1.2
1.3
050
2
1.2
1.3
060
2
1.2
1.3
Maximum Input Power
2 W avg, 100 W pk
Connectors (50
Ω
)
8491A: Type N
3
8493A: SMA
4
Dimension (Length)
8491A: 2-7/16 in. (67 mm)
8493A: 1-9/16 in. (40 mm)
Diameter
8491A: 13/16 in. (21 mm)
8493A: 1/2 in. (13 mm)
1. Option numbers indicate the attenuation values. For example, option 003 indicates 3
dB attenuation, option 010 indicates 10 dB attenuation and so on.
2. Options 040, 050, and 060 are not available for 8493A.
3. Mate with MIL-C-71 and MIL-C-39012 connectors.
4. Miniature SMA type.