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-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-8GHz 0-121dB x 1dB | 50BR-108
JFW Model #: 50BR-108
Type: Manually variable attenuator
Enclosure: Benchtop
Impedance: 50 Ohm
dB Total: 121 dB
dB Step: 1 dB
Frequency Range: DC-8 GHz
RF Input Power: 1 Watt
RF Connectors: N or SMA Female
Documentation: Data Sheet | Drawing -
50 Ohm Benchtop Attenuator DC-4GHz 0-121dB x 1dB | 50BR-160
JFW Model #: 50BR-160
Type: Manually variable attenuator
Enclosure: Benchtop
Impedance: 50 Ohm
dB Total: 121 dB
dB Step: 1 dB
Frequency Range: DC-4000 MHz
RF Input Power: 1 Watt
RF Connectors: N or SMA Female
Documentation: Data Sheet | Drawing -
Manual Attenuator DC-2.5GHz 0-5dB x 0.5dB | 50R-349
JFW Model #: 50R-349
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 5 dB
dB Step: 0.5 dB
Frequency Range: DC-2500 MHz
RF Input Power: 2 Watts
RF Connectors: SMA
Documentation: Data Sheet | Drawing | Knob/Mounting -
Manual Attenuator DC-3.6GHz 0-10dB x 1dB | 50R-408
JFW Model #: 50R-408
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 10 dB
dB Step: 1 dB
Frequency Range: DC-3600 MHz
RF Input Power: 2 Watts
RF Connectors: SMA
Documentation: Data Sheet | Drawing | Panel Mount -
75 Ohm Benchtop Attenuator DC-1 GHz 0-70dB x 1dB | 75BR-024
JFW Model #: 75BR-024
Type: Manually variable attenuator
Enclosure: Benchtop L-bracket
Impedance: 75 Ohm
dB Total: 70 dB
dB Step: 1 dB
Frequency Range: DC-1000 MHz
RF Input Power: 1 Watt
RF Connectors: BNC, F, N
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-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 -
Panel Mounted Attenuators DC-2.2 GHz 0-110dB x 1dB | 50PM-126
JFW Model #: 50PM-126-XX
Type: Manually variable attenuators
Panel: 19 inch rack mountable
Impedance: 50 Ohm
Configuration: 1-8 Attenuators
dB Total: 110 dB
dB Step: 1 dB
Frequency Range: DC-2200 MHz
RF Input Power: 2 Watt
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing | Drawing -
Panel Mounted Attenuators DC-2 GHz 0-110dB x 1dB | 50PM-125
JFW Model #: 50PM-125-XX
Type: Manually variable attenuators
Panel: 19 inch rack mountable
Impedance: 50 Ohm
Configuration: 1-8 Attenuators
dB Total: 110 dB
dB Step: 1 dB
Frequency Range: DC-2000 MHz
RF Input Power: 2 Watt
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing | Drawing -
Panel Mounted Attenuators DC-1 GHz 0-110dB x 1dB | 50PM-124
JFW Model #: 50PM-124-XX
Type: Manually variable attenuators
Panel: 19 inch rack mountable
Impedance: 50 Ohm
Configuration: 1-8 Attenuators
dB Total: 110 dB
dB Step: 1 dB
Frequency Range: DC-1000 MHz
RF Input Power: 2 Watt
RF Connectors: BNC, Mini-UHF, N, RPT, SMA, TNC
Documentation: Data Sheet | Drawing | Drawing -
Panel Mounted Attenuators DC-3 GHz 0-80dB x 1dB | 50PM-123
JFW Model #: 50PM-123-XX
Type: Manually variable attenuators
Panel: 19 inch rack mountable
Impedance: 50 Ohm
Configuration: 1-8 Attenuators
dB Total: 80 dB
dB Step: 1 dB
Frequency Range: DC-3000 MHz
RF Input Power: 2 Watt
RF Connectors: N, SMA
Documentation: Data Sheet | Drawing | Drawing -
Panel Mounted Attenuators DC-2.5 GHz 0-80dB x 1dB | 50PM-122
JFW Model #: 50PM-122-XX
Type: Manually variable attenuators
Panel: 19 inch rack mountable
Impedance: 50 Ohm
Configuration: 1-8 Attenuators
dB Total: 80 dB
dB Step: 1 dB
Frequency Range: DC-2500 MHz
RF Input Power: 2 Watt
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing | Drawing -
Panel Mounted Attenuators DC-2.2 GHz 0-80dB x 1dB | 50PM-121
JFW Model #: 50PM-121-XX
Type: Manually variable attenuators
Panel: 19 inch rack mountable
Impedance: 50 Ohm
Configuration: 1-8 Attenuators
dB Total: 80 dB
dB Step: 1 dB
Frequency Range: DC-2200 MHz
RF Input Power: 2 Watt
RF Connectors: BNC, N, SMA
Documentation: Data Sheet | Drawing | Drawing -
Panel Mounted Attenuators DC-2.7 GHz 0-60dB x 1dB | 50PM-120
JFW Model #: 50PM-120-XX
Type: Manually variable attenuators
Panel: 19 inch rack mountable
Impedance: 50 Ohm
Configuration: 1-8 Attenuators
dB Total: 60 dB
dB Step: 1 dB
Frequency Range: DC-2700 MHz
RF Input Power: 2 Watt
RF Connectors: N, SMA
Documentation: Data Sheet | Drawing | Drawing