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
50DR-068	50 Ohm	70 dB	1 dB	DC-2400 MHz	2 Watt	BNC, N, SMA, TNC
50DR-100	50 Ohm	80 dB	1 dB	DC-2500 MHz	2 Watt	BNC, N, SMA, TNC