75 Ohm Dual Rotor Manual Attenuators
The JFW 75 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 75 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 |
---|---|---|---|---|---|---|
75DR-031 | 75 Ohm | 50 dB | 1 dB | DC-1000 MHz | 1 Watt | BNC, F, N |
75DR-006 | 75 Ohm | 80 dB | 1 dB | DC-600 MHz | 1 Watt | BNC, F, N |
75DR-009 | 75 Ohm | 70 dB | 1 dB | DC-1000 MHz | 1 Watt | BNC, F, N |
75DR-018 | 75 Ohm | 30 dB | 1 dB | DC-1000 MHz | 1 Watt | BNC, F |
75DR-021 | 75 Ohm | 30 dB | 1 dB | DC-2100 MHz | 1 Watt | BNC, F, N |
75DR-022 | 75 Ohm | 11 dB | 0.1 dB | DC-1000 MHz | 1 Watt | BNC, F |
75DR-026 | 75 Ohm | 50 dB | 1 dB | DC-1500 MHz | 1 Watt | BNC, F, N |
75DR-028 | 75 Ohm | 11 dB | 0.1 dB | DC-1218 MHz | 1 Watt | BNC, F, N |
75DR-029 | 75 Ohm | 80 dB | 1 dB | DC-1218 MHz | 1 Watt | BNC, F, N |
- Display 45 Products per page
-
Manual Attenuator DC-1218 MHz 0-80dB x 1dB | 75DR-029
JFW Model #: 75DR-029
Type: Manually variable attenuator
Impedance: 75 Ohm
dB Total: 80 dB
dB Step: 1 dB
Frequency Range: DC-1218 MHz
RF Input Power: 1 Watt
RF Connectors: BNC, F, N
Documentation: Data Sheet | Drawing | Knob/Mounting -
Manual Attenuator DC-1218 MHz 0-11dB x 0.1dB | 75DR-028
JFW Model #: 75DR-028
Type: Manually variable attenuator
Impedance: 75 Ohm
dB Total: 11 dB
dB Step: 0.1 dB
Frequency Range: DC-1218 MHz
RF Input Power: 1 Watt
RF Connectors: BNC, F, N
Documentation: Data Sheet | Drawing (BNC) | Drawing (F) | Knob/Mounting -
Manual Attenuator DC-1500 MHz 0-50dB x 1dB | 75DR-026
JFW Model #: 75DR-026
Type: Manually variable attenuator
Impedance: 75 Ohm
dB Total: 50 dB
dB Step: 1 dB
Frequency Range: DC-1500 MHz
RF Input Power: 1 Watt
RF Connectors: BNC, F, N
Documentation: Data Sheet | Drawing (BNC) | Drawing (N) | Drawing (F)| Knob/Mounting -
Manual Attenuator DC-1000 MHz 0-11dB x 0.1dB | 75DR-022
JFW Model #: 75DR-022
Type: Manually variable attenuator
Impedance: 75 Ohm
dB Total: 11 dB
dB Step: 0.1 dB
Frequency Range: DC-1000 MHz
RF Input Power: 1 Watt
RF Connectors: BNC, F
Documentation: Data Sheet | Drawing (BNC) | Drawing (F) | Knob/Mounting -
Manual Attenuator DC-2100 MHz 0-30dB x 1dB | 75DR-021
JFW Model #: 75DR-021
Type: Manually variable attenuator
Impedance: 75 Ohm
dB Total: 30 dB
dB Step: 1 dB
Frequency Range: DC-2100 MHz
RF Input Power: 1 Watt
RF Connectors: BNC, F, N
Documentation: Data Sheet | Drawing (BNC) | Drawing (N) | Knob/Mounting -
Manual Attenuator DC-1000 MHz 0-30dB x 1dB | 75DR-018
JFW Model #: 75DR-018
Type: Manually variable attenuator
Impedance: 75 Ohm
dB Total: 30 dB
dB Step: 1 dB
Frequency Range: DC-1000 MHz
RF Input Power: 1 Watt
RF Connectors: BNC, F
Documentation: Data Sheet | Drawing | Knob/Mounting -
Manual Attenuator DC-1000 MHz 0-70dB x 1dB | 75DR-009
JFW Model #: 75DR-009
Type: Manually variable attenuator
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 (BNC) | Drawing (N) | Drawing (F)| Knob/Mounting -
Manual Attenuator DC-600 MHz 0-80dB x 1dB | 75DR-006
JFW Model #: 75DR-006
Type: Manually variable attenuator
Impedance: 75 Ohm
dB Total: 80 dB
dB Step: 1 dB
Frequency Range: DC-600 MHz
RF Input Power: 1 Watt
RF Connectors: BNC, F, N
Documentation: Data Sheet | Drawing (BNC) | Drawing (N) | Knob/Mounting -
Manual Attenuator DC-1000 MHz 0-50dB x 1dB | 75DR-031
JFW Model #: 75DR-031
Type: Manually variable attenuator
Impedance: 75 Ohm
dB Total: 50 dB
dB Step: 1 dB
Frequency Range: DC-1000 MHz
RF Input Power: 1 Watt
RF Connectors: BNC, F, N
Documentation: Data Sheet | Drawing