50 Ohm Dual Rotor Manual Attenuators
The JFW 50 Ohm dual rotary attenuator has been a staple tool to RF engineers for over 30 years. Our years of proven quality and performance make our manually variable attenuators right for any RF environment. Whether you are using the rotary attenuator on your RF test bench or mounting it to a panel, the JFW dual rotary attenuator makes adjusting attenuation quick and easy.
Dual Rotor Attenuator
All of these 50 Ohm manual step attenuators are dual rotor type which means that each attenuator has two knobs. For example our 0-110 x 1dB step models have a 10dB step knob and a 1dB step knob. The attenuation setting of the unit is the sum of both knob settings.
Panel Mount
All JFW rotary attenuators have threaded mounting holes on the front plate behind the knobs. Both knobs have to be removed in order to mount the attenuator. We recommend setting both knobs to the 0dB position before removing the knobs.
For your specific application, please contact JFW or use our Inquiry Form.
JFW Model # | Impedance | dB Total | dB Step | Frequency Range | RF Input Power | RF Connectors |
---|---|---|---|---|---|---|
50DR-001 | 50 Ohm | 110 dB | 1 dB | DC-1000 MHz | 2 Watt | BNC, N, RPT, SMA, TNC |
50DR-046 | 50 Ohm | 50 dB | 1 dB | DC-2500 MHz | 2 Watt | BNC, N, SMA, TNC |
50DR-055 | 50 Ohm | 30 dB | 1 dB | DC-2000 MHz | 2 Watt | BNC, N, RPT, SMA, TNC, 4.1/9.5 |
50DR-060 | 50 Ohm | 11 dB | 0.1 dB | DC-2000 MHz | 2 Watt | BNC, N, RPT, SMA, TNC |
50DR-061 | 50 Ohm | 80 dB | 1 dB | DC-2200 MHz | 2 Watt | BNC, N, SMA |
50DR-063 | 50 Ohm | 50 dB | 1 dB | DC-1100 MHz | 2 Watt | BNC, N, SMA, TNC |
50DR-077 | 50 Ohm | 90 dB | 1 dB | DC-2000 MHz | 2 Watt | BNC, N, SMA, TNC |
50DR-082 | 50 Ohm | 110 dB | 1 dB | DC-2000 MHz | 2 Watt | BNC, N, SMA, TNC |
50DR-096 | 50 Ohm | 30 dB | 1 dB | DC-3000 MHz | 2 Watt | N, SMA, TNC |
50DR-111 | 50 Ohm | 60 dB | 1 dB | DC-2700 MHz | 2 Watt | N, SMA |
50DR-119 | 50 Ohm | 110 dB | 1 dB | DC-2200 MHz | 2 Watt | BNC, N, SMA, TNC |
50DR-121 | 50 Ohm | 110 dB | 1 dB | DC-15 MHz | 2 Watt | BNC, N, SMA |
50DR-125 | 50 Ohm | 80 dB | 1 dB | DC-2700 MHz | 2 Watt | N, SMA |
50DR-128 | 50 Ohm | 30 dB | 1 dB | DC-2500 MHz | 2 Watt | N, SMA, TNC |
50DR-129 | 50 Ohm | 11 dB | 0.1 dB | DC-112 MHz | 2 Watt | BNC, N, RPT, SMA, TNC |
50DR-141 | 50 Ohm | 40 dB | 1 dB | DC-3600 MHz | 2 Watt | N, SMA |
50DR-143 | 50 Ohm | 80 dB | 1 dB | DC-3000 MHz | 2 Watt | N, SMA |
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Manual Attenuator DC-2000MHz 0-90dB x 1dB | 50DR-077
JFW Model #: 50DR-077
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 90 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 (BNC) | Drawing (N) | Drawing (SMA) | Knob/Mounting -
Manual Attenuator DC-2000MHz 0-11dB x 0.1dB | 50DR-060
JFW Model #: 50DR-060
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 11 dB
dB Step: 0.1 dB
Frequency Range: DC-2000 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, RPT, SMA, TNC
Documentation: Data Sheet | Drawing | Knob/Mounting -
Manual Attenuator DC-2200MHz 0-110dB x 1dB | 50DR-119
JFW Model #: 50DR-119
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 110 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 (BNC) | Drawing (N) | Drawing (SMA) | Knob/Mounting -
Manual Attenuator DC-3600MHz 0-40dB x 1dB | 50DR-141
JFW Model #: 50DR-141
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 40 dB
dB Step: 1 dB
Frequency Range: DC-3600 MHz
RF Input Power: 2 Watts
RF Connectors: N, SMA
Documentation: Data Sheet | Drawing | Knob/Mounting -
Manual Attenuator DC-2700MHz 0-80dB x 1dB | 50DR-125
JFW Model #: 50DR-125
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 80 dB
dB Step: 1 dB
Frequency Range: DC-2700 MHz
RF Input Power: 2 Watts
RF Connectors: N, SMA
Documentation: Data Sheet | Drawing (N) | Drawing (SMA) | Knob/Mounting -
Manual Attenuator DC-112MHz 0-11dB x 0.1dB | 50DR-129
JFW Model #: 50DR-129
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 11 dB
dB Step: 0.1 dB
Frequency Range: DC-112 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, RPT, SMA, TNC
Documentation: Data Sheet | Drawing | Knob/Mounting -
Manual Attenuator DC-3000MHz 0-80dB x 1dB | 50DR-143
JFW Model #: 50DR-143
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 80 dB
dB Step: 1 dB
Frequency Range: DC-3000 MHz
RF Input Power: 2 Watts
RF Connectors: N, SMA
Documentation: Data Sheet | Drawing (N) | Drawing (SMA) | Knob/Mounting -
Manual Attenuator DC-15MHz 0-110dB x 1dB | 50DR-121
JFW Model #: 50DR-121
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 110 dB
dB Step: 1 dB
Frequency Range: DC-15 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, SMA
Documentation: Data Sheet | Drawing (BNC) | Drawing (N) | Drawing (SMA) | Knob/Mounting -
Manual Attenuator DC-2000MHz 0-110dB x 1dB | 50DR-082
JFW Model #: 50DR-082
Type: Manually variable attenuator
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 (BNC) | Drawing (N) | Drawing (SMA) | Knob/Mounting -
Manual Attenuator DC-2700MHz 0-60dB x 1dB | 50DR-111
JFW Model #: 50DR-111
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 60 dB
dB Step: 1 dB
Frequency Range: DC-2700 MHz
RF Input Power: 2 Watts
RF Connectors: N, SMA
Documentation: Data Sheet | Drawing (SMA) | Drawing (N) | Knob/Mounting -
Manual Attenuator DC-2200MHz 0-80dB x 1dB | 50DR-061
JFW Model #: 50DR-061
Type: Manually variable attenuator
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 SMA | Drawing BNC | Drawing N | Knob/Mounting -
Manual Attenuator DC-2000MHz 0-30dB x 1dB | 50DR-055
JFW Model #: 50DR-055
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 30 dB
dB Step: 1 dB
Frequency Range: DC-2000 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, RPT, SMA, TNC, 4.1/9.5
Documentation: Data Sheet | Drawing BNC | Drawing N | Drawing SMA | Knob/Mounting -
Manual Attenuator DC-2500MHz 0-50dB x 1dB | 50DR-046
JFW Model #: 50DR-046
Type: Manually variable attenuator
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 SMA | Drawing BNC | Drawing N | Knob/Mounting -
Manual Attenuator DC-1000MHz 0-110dB x 1dB | 50DR-001
JFW Model #: 50DR-001
Type: Manually variable attenuator
dB Total: 110 dB
dB Step: 1 dB
Frequency Range: DC-1000 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, SMA, TNC, RPT
Documentation: Data Sheet | Drawing SMA | Drawing BNC | Drawing N | Knob/Mounting -
Manual Attenuator DC-1100MHz 0-50dB x 1dB | 50DR-063
JFW Model #: 50DR-063
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 50 dB
dB Step: 1 dB
Frequency Range: DC-1100 MHz
RF Input Power: 2 Watts
RF Connectors: BNC, N, SMA, TNC
Documentation: Data Sheet | Drawing | Knob/Mounting -
Manual Attenuator DC-2500MHz 0-30dB x 1dB | 50DR-128
JFW Model #: 50DR-128
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 30 dB
dB Step: 1 dB
Frequency Range: DC-2500 MHz
RF Input Power: 2 Watts
RF Connectors: N, SMA, TNC
Documentation: Data Sheet | Drawing | Knob/Mounting -
Manual Attenuator DC-3000MHz 0-30dB x 1dB | 50DR-096
JFW Model #: 50DR-096
Type: Manually variable attenuator
Impedance: 50 Ohm
dB Total: 30 dB
dB Step: 1 dB
Frequency Range: DC-3000 MHz
RF Input Power: 2 Watts
RF Connectors: N, SMA, TNC
Documentation: Data Sheet | Drawing | Knob/Mounting