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HP 8491A,B,C, 8492A, 8493A,B,C
Hewlett-Packard coaxial fixed attenuators provide
precise attenuation, flat frequency response, and low
SWR over broad frequency ranges. Attenuators are
available in nominal attenuations of 3 dB and 6 dB, as
well as 10 dB increments from 10 dB to 60 dB. These
attenuators are swept-frequency tested to ensure
specification compliance at all frequencies. Calibration
points are provided on a nameplate chart attached to
each unit (except for the HP 8491C).
HP 8498A High Power Attenuator
The HP 8498A Option 030 is designed to meet the
needs of high power attenuation applications in the RF
and microwave frequency range. It is a 25 watt average,
30 dB fixed attenuator with a frequency range of dc to
18 GHz. The maximum peak power specification
is 500 watts (dc to 5.8 GHz) and 125 watts (5.8
to 18 GHz). Available only in a 30 dB version,
the unit offers a 1.3 SWR and ±1 dB accuracy
at 18 GHz. Large heat-dissipating fins keep the
unit cool even under continuous maximum input
power conditions.
HP 8490D 50-GHz Fixed Attenuator
Hewlett-Packard coaxial fixed attenuators have been
the standard for accurate flat response and low SWR.
The HP 8490D offers exceptional performance to 50 GHz
using the 2.4-mm connector. Attenuation values available
are 3, 6, 10, 20, 30, and 40 dB. Ideally suited for
extending the range of sensitive power meters, or for
use as calibration standards, these broadband attenuators
are manufactured with the same meticulous care as
their lower frequency counterparts.
HP 11581A, 11582A, 11583A,C Attenuator Sets
A set of four attenuators (3, 6, 10 and 20 dB)
is furnished in a walnut accessory case. The HP 11581A
set consists of HP 8491A attenuators; the HP 11582A
set, HP 8491B attenuators; the HP 11583A set,
HP 8492A attenuators; and the HP 11583C set,
HP 8493C attenuators. These sets are ideal for
calibration labs or where precise knowledge of
attenuation and SWR is desired.
HP 86213A Attenuator Set
Provides a set of four, 3, 6, 10 and 20 dB, 75 ohm type-N
attenuators in a walnut accessory case (HP 0955-0765,
0955-0766, 0955-0767, and 0955-0768), respectively.
Used for reducing power and improving match. SWR
is 1.12 to 1.3 GHz and 1.3 to 3 GHz. Attenuation
accuracy is ±0.5 dB.
HP 8493A
HP 8492A
HP 8491A/B/C
HP 8490D
HP 8498A
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Attenuators
Visit our web site http://www.hp.com/go/mta
Attenuators
Frequency Maximum
HP Range Maximum Input
Attenuation Accuracy (± dB)
Model (GHz) SWR Power 3 dB 6 dB 10 dB 20 dB 30 dB 40 dB 50 dB 60 dB Connectors
8491A dc to 12.4 1.2 to 8 GHz 0.3 0.3 0.5 0.5 1.0 1.5 1.5 2 N (m, f)
3 to 30 dB 1.3 to 12.4 GHz
40 to 60 dB
8491B dc to 18 1.2 to 8 GHz 0.3 0.3 to 12.4 GHz 0.6 0.6 to 12.4 GHz 1.0 1.5 1.5 2 N (m, f)
3 to 30 dB 1.3 to 12.4 GHz 0.4 to 18 GHz 1.0 to 18 GHz
40 to 60 dB 1.5 to 18 GHz
8491C dc to 18 1.2 to 8 GHz 0.3 to 12.4 GHz 0.4 to 12.4 GHz 0.6 0.6 to 12.4 GHz 1.0 — — — N (m, f)
3 to 30 dB 1.3 to 12.4 GHz 0.4 to 18 GHz 0.5 to 18 GHz 1.0 to 18 GHz
1.5 to 18 GHz
8492A dc to 18 1.15 to 8 GHz 0.3 0.3 to 12.4 GHz 0.6 0.6 to 12.4 GHz 1.0 1.5 1.5 2 APC-7
3 to 30 dB 1.25 to 12.4 GHz 0.4 to 18 GHz 1.0 to 18 GHz
40 to 60 dB 1.35 to 18 GHz
8493A dc to 12.4 1.2 to 8 GHz 0.3 0.3 0.5 0.5 1.0 — — — SMA (m, f)
3 to 20 dB 1.3 to 12.4 GHz
30 dB
8493B dc to 18 1.2 to 8 GHz ±0.3 dB 0.3 to 12.4 GHz 0.6 0.6 to 12.4 GHz 1.0 — — — SMA (m, f)
3 to 20 dB 1.3 to 12.4 GHz 0.4 to 18 GHz 1.0 to 18 GHz
30 dB 1.5 to 18 GHz
8493C dc to 26.5 1.1 to 8 GHz 0.5 to 18 GHz 0.6 0.3 0.5 0.7 1.0 — — 3.5 mm (m, f)
3 to 30 dB 1.15 to 12.4 GHz 1.0 to 26.5 GHz
40 dB 1.25 to 26.5 GHz
1
0.6 0.5 0.6 1.0 1.3
8498A dc to 18 1.15 to 8 GHz 25 W avg. — — — — 1.0 — — — N (m, f)
30 dB 1.25 to 12.4 GHz 500 W peak
1.30 to 18 GHz (dc to 5.8 GHz)
125 W peak
500 W/ms
max. per pulse
(5.8 to 18 GHz)
Specifications
Fixed
Specifications
Frequency
Range Maximum
Option: 003 006 010 020 030 040
HP Model (GHz) Input Power Atten. 3 dB 6 dB 10 dB 20 dB 30 dB 40 dB
Connectors
8490D dc to 50 1 W avg. Attenuation: Min: 0 to 50 GHz 2.5 5.4 9.4 19.2 29.2 38.2
Max: 0 to 26.5 GHz 3.9 6.9 10.9 21.3 31.3 42.5
Max: 26.5 to 50 GHz 4.8 7.8 11.3 21.7 31.7 42.5
SWR: Max: 0 to 26.5 GHz 1.15 1.15 1.15 1.15 1.15 1.08
Max: 26.5 to 40 GHz 1.25 1.25 1.25 1.25 1.25 1.15
Max: 40 to 50 GHz 1.45 1.45 1.45 1.45 1.45 1.25
2.4 mm (m, f)
1
1.27 for Option 006.
2 W avg.
100 W peak
Indicates QuickShip availability
. Contact HP Direct or your local HP sales representative to confirm QuickShip.
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