75 Ohm Single Rotor Manual Attenuators

The JFW 75 Ohm single 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 at your RF test bench or mounting it to a panel, the JFW single rotary attenuator makes adjusting attenuation quick and easy.

Single Rotor Attenuator

All of these 75 Ohm manual step attenuators have a single rotor design which means that each attenuator has only one manual knob for adjusting attenuation.  All manual knobs are screened with the attenuation steps for each model.

Panel Mount

All JFW rotary attenuators have threaded mounting holes on the front plate behind the knob.  The knob has to be removed in order to mount the attenuator.  We recommend setting attenuator to the 0dB position before removing the knob.

For your specific attenuation application, please contact JFW or use our Inquiry Form.

JFW Model #	Impedance	dB Total	dB Step	Frequency Range	RF Input Power	RF Connectors
75R-001	75 Ohm	70 dB	10 dB	DC-500 MHz	1 Watt	BNC, F, N
75R-002	75 Ohm	10 dB	1 dB	DC-500 MHz	1 Watt	BNC, F, N
75R-006	75 Ohm	1 dB	0.1 dB	DC-500 MHz	1 Watt	BNC, F
75R-050	75 Ohm	10 dB	1 dB	DC-2200 MHz	1 Watt	BNC, F, N
75R-055	75 Ohm	70 dB	10 dB	DC-1000 MHz	1 Watt	BNC, F, N
75R-056	75 Ohm	10 dB	1 dB	DC-1000 MHz	1 Watt	BNC, F
75R-057	75 Ohm	1 dB	0.1 dB	DC-1000 MHz	1 Watt	BNC, F
75R-089	75 Ohm	60 dB	10 dB	DC-2200 MHz	1 Watt	BNC, F, N