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Benchtop Manually Variable Attenuators (Enclosure)

Benchtop attenuator with manual rotary attenuatorsJFW’s standard benchtop rotary attenuator models are listed in the table below.  These online models have the RF connectors on the rear panel and the manual knobs on the front panel.

Step Attenuator Design
The benchtop attenuator assemblies use step attenuators internally.  The step attenuators are connected in series with each other.  The attenuation setting of the assembly is the sum of the attenuation indicated by both knobs.

Click the column headers to sort our online models. For your specific application, please contact JFW for assistance or use our Inquiry Form.

JFW Model #ImpedancedB TotaldB StepFrequency StartFrequency StopRF Input PowerRF Connectors
50BR-00150 Ohms110 dB1 dB0 MHz (DC)2000 MHz2 WattsBNC, N, SMA, TNC
50BR-06850 Ohms110 dB1 dB0 MHz (DC)2550 MHz2 WattsBNC, N, SMA, TNC
50BR-09250 Ohms81 dB0.1 dB0 MHz (DC)1000 MHz2 WattsBNC, N, SMA, TNC
50BR-09650 Ohms80 dB1 dB0 MHz (DC)2200 MHz2 WattsBNC, N, SMA, TNC
50BR-10450 Ohms80 dB1 dB0 MHz (DC)2700 MHz2 WattsBNC, N, SMA, TNC
50BR-11250 Ohms110 dB1 dB0 MHz (DC)2700 MHz2 WattsBNC, N, SMA, TNC
50BR-13750 Ohms61 dB0.1 dB0 MHz (DC)100 MHz2 WattsBNC, N, SMA, TNC
50BR-14750 Ohms110 dB1 dB0 MHz (DC)3000 MHz2 WattsN, SMA, TNC
50BR-14850 Ohms80 dB1 dB0 MHz (DC)3000 MHz2 WattsBNC, N, SMA, TNC
75BR-01475 Ohms90 dB1 dB0 MHz (DC)1000 MHz1 WattBNC, F, N
75BR-02375 Ohms70 dB1 dB0 MHz (DC)2150 MHz1 WattBNC, F, N
75BR-03675 Ohms70.75 dB0.25 dB0 MHz (DC)1218 MHz1 WattF Female

If you can’t find a standard benchtop variable attenuator model to meet your requirements, please contact JFW at sales@jfwindustries.com. JFW can integrate any of our manually variable attenuators into a benchtop enclosure. JFW never charges NRE’s for new benchtop rotary attenuator models. We pride ourselves in the ability to offer custom benchtop rotary attenuator models with the same pricing and delivery as our standard benchtop rotary attenuator models.

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