USB Attenuator (50 Ohm Solid-State)

The USB attenuator has become a popular choice for companies and universities with its small size and ability to be easily controlled using the USB port of a computer. The attenuator models listed below are all bi-directional solid-state step attenuators with 50 Ohm impedance. These attenuators are ideal for fade testing cellular or Wi-Fi devices. Our test software can control multiple USB attenuators simultaneously allowing for handover testing from a single GUI menu.  For your specific application, please contact JFW for assistance or use our Inquiry Form.

Test Software for USB Attenuators

Every USB attenuator from JFW ships with our GUI test software. The test software will auto-discover any JFW USB attenuator that is connected to the computer. The test software can control multiple USB attenuators simultaneously. The test software requires Microsoft Windows Vista or greater. Our test software manual details all of its functionality like built-in attenuator fade and dual attenuator handover.

Python Library Available

JFW has a Python library (jfwusb.py) that allows our USB attenuators to be integrated into the test scripts.  Contact our engineering department for the Python library and examples.

USB Attenuators

JFW Model #	Impedance	dB Total	dB Step	Frequency Start	Frequency Stop	Switching Speed	RF Input Power	Control	RF Connectors
50P-2013	50 Ohm	63 dB	1 dB	200 MHz	6000 MHz	3 uS	+27 dBm	USB	SMA
50P-2014	50 Ohm	95 dB	1 dB	200 MHz	6000 MHz	4 uS	+27 dBm	USB	SMA
50P-2038	50 Ohm	31 dB	1 dB	200 MHz	6000 MHz	3 uS	+27 dBm	USB	SMA
50P-2042	50 Ohm	63.5 dB	0.5 dB	30 MHz	3000 MHz	3 uS	+27 dBm	USB	SMA
50P-2055	50 Ohm	95.5 dB	0.5 dB	20 MHz	3000 MHz	4 uS	+27 dBm	USB	SMA
50P-2058	50 Ohm	31.75 dB	0.25 dB	30 MHz	3000 MHz	3 uS	+27 dBm	USB	SMA
50P-2103	50 Ohm	63 dB	0.5 dB	100 MHz	18000 MHz	1 uS	+24 dBm	USB	SMA
50P-2057	50 Ohm	95.5 dB	0.5 dB	200 MHz	6000 MHz	4 uS	+27 dBm	USB	SMA
50P-2107	50 Ohm	63 dB	0.5 dB	200 MHz	8400 MHz	1 uS	+24 dBm	USB	SMA
50P-2111	50 Ohm	95 dB	1 dB	200 MHz	8400 MHz	4 uS	+24 dBm	USB	SMA

4 Channel USB Attenuators

JFW Model #	Impedance	dB Total	dB Step	Frequency Start	Frequency Stop	Switching Speed	RF Input Power	Control	RF Connectors
50P-2089	50 Ohm	95 dB	1 dB	200 MHz	6000 MHz	4 uS	+27 dBm	USB	SMA
50P-2137	50 Ohm	95 dB	1 dB	30 MHz	3000 MHz	4 uS	+27 dBm	USB	SMA
50P-2138	50 Ohm	95 dB	1 dB	1 MHz	1000 MHz	4 uS	+18 dBm	USB	SMA
50P-2142	50 Ohm	63.5 dB	0.5 dB	30 MHz	3000 MHz	4 uS	+27 dBm	USB	SMA
50P-2141	50 Ohm	63 dB	1 dB	200 MHz	6000 MHz	4 uS	+27 dBm	USB	SMA