Manually Variable Attenuators
Manually controlled variable attenuators are passive devices that require no external power source to operate. A majority of our models have rotary knobs for manual control. Just turn the knob(s) to set the desired attenuation. We also offer manual attenuators with pushbutton, rocker or toggle switches as the manual controls.
50 Ohm Models
- Single Rotor: step attenuator with one manual knob
- Dual Rotor: step attenuator with two manual knobs
- Panel Mounted: 19 inch rack mountable panel models
- Benchtop (enclosure): step attenuator in fully enclosed benchtop enclosure
- Benchtop (L-bracket): step attenuator on benchtop L-bracket
- Pushbutton: step attenuator with pushbutton switches
- Rocker: step attenuator with rocker switches
- Toggle: step attenuator with toggle switches
75 Ohm Models
- Single Rotor: step attenuator with one manual knob
- Dual Rotor: step attenuator with two manual knobs
- Panel Mounted: 19 inch rack mountable panel models
- Benchtop (enclosure): step attenuator in fully enclosed benchtop enclosure
- Benchtop (L-bracket): step attenuator on benchtop L-bracket
- Pushbutton: step attenuator with pushbutton switches
- Toggle: step attenuator with toggle switches
- Display 15 Products per page
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50 Ohm Benchtop Attenuator DC-0.1 GHz 0-61dB x 0.1dB | 50BR-137
JFW Model #: 50BR-137
Type: Manually variable attenuator
Enclosure: Benchtop
Impedance: 50 Ohm
dB Total: 61 dB
dB Step: 0.1 dB
Frequency Range: DC-100 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing -
50 Ohm Benchtop Attenuator DC-1 GHz 0-110dB x 1dB | 50BR-009
JFW Model #: 50BR-009
Type: Manually variable attenuator
Enclosure: Benchtop L-bracket
Impedance: 50 Ohm
dB Total: 110 dB
dB Step: 1 dB
Frequency Range: DC-1000 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, SMA
Documentation: Data Sheet | Drawing -
50 Ohm Benchtop Attenuator DC-1 GHz 0-110dB x 1dB | 50BR-024
JFW Model #: 50BR-024
Type: Manually variable attenuator
Enclosure: Benchtop L-bracket
Impedance: 50 Ohm
dB Total: 110 dB
dB Step: 1 dB
Frequency Range: DC-1000 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, RP-TNC, SMA, TNC
Documentation: Data Sheet | Drawing -
50 Ohm Benchtop Attenuator DC-1 GHz 0-111dB x 0.1dB | 50BR-022
JFW Model #: 50BR-022
Type: Manually variable attenuator
Enclosure: Benchtop L-bracket
Impedance: 50 Ohm
dB Total: 111 dB
dB Step: 0.1 dB
Frequency Range: DC-1000 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing -
50 Ohm Benchtop Attenuator DC-1 GHz 0-81dB x 0.1dB | 50BR-017
JFW Model #: 50BR-017
Type: Manually variable attenuator
Enclosure: Benchtop L-bracket
Impedance: 50 Ohm
dB Total: 81 dB
dB Step: 0.1 dB
Frequency Range: DC-1000 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing -
50 Ohm Benchtop Attenuator DC-1 GHz 0-81dB x 0.1dB | 50BR-092
JFW Model #: 50BR-092
Type: Manually variable attenuator
Enclosure: Benchtop enclosure
Impedance: 50 Ohm
dB Total: 81 dB
dB Step: 0.1 dB
Frequency Range: DC-1000 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing -
50 Ohm Benchtop Attenuator DC-18GHz 0-121dB x 1dB | 50BR-161
JFW Model #: 50BR-161
Type: Manually variable attenuator
Enclosure: Benchtop
Impedance: 50 Ohm
dB Total: 121 dB
dB Step: 1 dB
Frequency Range: DC-18 GHz
RF Input Power: 1 Watt
RF Connectors: N or SMA female
Documentation: Data Sheet | Drawing -
50 Ohm Benchtop Attenuator DC-2 GHz 0-110dB x 1dB | 50BR-001
JFW Model #: 50BR-001
Type: Manually variable attenuator
Enclosure: Benchtop enclosure
Impedance: 50 Ohm
dB Total: 110 dB
dB Step: 1 dB
Frequency Range: DC-2000 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing -
50 Ohm Benchtop Attenuator DC-2 GHz 0-110dB x 1dB | 50BR-036
JFW Model #: 50BR-036
Type: Manually variable attenuator
Enclosure: Benchtop L-bracket
Impedance: 50 Ohm
dB Total: 110 dB
dB Step: 1 dB
Frequency Range: DC-2000 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing -
50 Ohm Benchtop Attenuator DC-2.2 GHz 0-80dB x 1dB | 50BR-008
JFW Model #: 50BR-008
Type: Manually variable attenuator
Enclosure: Benchtop L-bracket
Impedance: 50 Ohm
dB Total: 80 dB
dB Step: 1 dB
Frequency Range: DC-2200 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, SMA
Documentation: Data Sheet | Drawing -
50 Ohm Benchtop Attenuator DC-2.2 GHz 0-80dB x 1dB | 50BR-096
JFW Model #: 50BR-096
Type: Manually variable attenuator
Enclosure: Benchtop enclosure
Impedance: 50 Ohm
dB Total: 80 dB
dB Step: 1 dB
Frequency Range: DC-2200 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing -
50 Ohm Benchtop Attenuator DC-2.5 GHz 0-50dB x 1dB | 50BR-052
JFW Model #: 50BR-052
Type: Manually variable attenuator
Enclosure: Benchtop L-bracket
Impedance: 50 Ohm
dB Total: 50 dB
dB Step: 1 dB
Frequency Range: DC-2500 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing -
50 Ohm Benchtop Attenuator DC-2.55 GHz 0-110dB x 1dB | 50BR-068
JFW Model #: 50BR-068
Type: Manually variable attenuator
Enclosure: Benchtop enclosure
Impedance: 50 Ohm
dB Total: 110 dB
dB Step: 1 dB
Frequency Range: DC-2550 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing -
50 Ohm Benchtop Attenuator DC-2.7 GHz 0-110dB x 1dB | 50BR-112
JFW Model #: 50BR-112
Type: Manually variable attenuator
Enclosure: Benchtop
Impedance: 50 Ohm
dB Total: 110 dB
dB Step: 1 dB
Frequency Range: DC-2700 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing -
50 Ohm Benchtop Attenuator DC-2.7 GHz 0-80dB x 1dB | 50BR-104
JFW Model #: 50BR-104
Type: Manually variable attenuator
Enclosure: Benchtop enclosure
Impedance: 50 Ohm
dB Total: 80 dB
dB Step: 1 dB
Frequency Range: DC-2700 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing