Programmable Attenuator Assemblies in Benchtop Enclosures

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Below is a sortable table containing our online benchtop programmable attenuator assembly models. These models have evolved from over 30 years of designing and delivering custom RF test systems. If you can’t find a model that fits your needs, please email your requirements to our test system engineers (jfwengr@jfwindustries.com). JFW does not charge NRE’s and our pricing for custom models is in-line with our catalog models.

JFW has a wide selection of variable attenuators that we can use to manufacture a remotely controlled variable attenuator assembly for you. JFW can take any of our catalog programmable attenuator models (solid-state or electro-mechanical) and integrate it with a variety of remote and manual control options.

Inquiry Form				Ethernet & RS-232 Commands				Sample Test Programs
Capabilities & Options				GPIB Commands				Manuals for Download

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

JFW Model #	Impedance	Configuration	dB Total	dB Step	Frequency Start	Frequency Stop	Control	Documents	Buy or Quote
50PA-505	50 Ohms	4 Attenuators (Solid-State)	63 dB	1 dB	200 MHz	6 GHz	Manual Ethernet RS-232	Specs Drawing	Quote
50PA-506	50 Ohms	8 Attenuators (Solid-State)	63 dB	1 dB	200 MHz	6 GHz	Manual Ethernet RS-232	Specs Drawing	Quote
50PA-517	50 Ohms	4 Attenuators (Solid-State)	95 dB	1 dB	200 MHz	6 GHz	Manual Ethernet RS-232	Specs Drawing	Quote
50PA-521	50 Ohms	8 Attenuators (Solid-State)	95 dB	1 dB	200 MHz	6 GHz	Manual Ethernet RS-232	Specs Drawing	Quote
50PA-547	50 Ohms	4 Attenuators (Solid-State)	127 dB	1 dB	800 MHz	3000 MHz	Manual Ethernet RS-232	Specs Drawing	Quote
50PA-575	50 Ohms	4 Attenuators (Solid-State)	127 dB	1 dB	200 MHz	3000 MHz	Manual Ethernet RS-232	Specs Drawing	Quote
50PA-580	50 Ohms	2 Attenuators (Solid-State)	127 dB	1 dB	200 MHz	3000 MHz	Manual Ethernet RS-232	Specs Drawing	Quote
50PA-628	50 Ohms	12 Attenuators (Solid-State)	63 dB	1 dB	200 MHz	6000 MHz	Manual Ethernet RS-232	Specs Drawing	Quote
75PA-052	75 Ohms	2 Attenuators (Solid-State)	127 dB	1 dB	450 MHz	2150 MHz	Manual Ethernet RS-232	Specs Drawing	Quote

Capabilities & Options

Custom Models

The models listed in the above table showcase some of our standard programmable attenuator assemblies. However, most of JFW’s test system business involves custom designed models. JFW does not charge NRE’s for custom models. We encourage you to email us your specific requirement(sales@jfwindustries.com). We will respond with a ROM (rough order of magnitude) quote in 1-2 days. Please include a block diagram with your request if the test system involves multiple RF components.

Remote Commands

JFW has standard remote commands for GPIB, Ethernet, and RS-232 controlled models. The command syntax is simple and allows easy control of the programmable attenuator settings. In addition to our standard commands, JFW can also provide customer specific commands upon request.

Test Software

JFW provides a GUI test program with all Ethernet and RS-232 controlled test systems. The test software for programmable attenuator assemblies has all of the remote commands built in for easy testing. In addition to the remote commands, the GUI test program has additional functionality such as keypress, handover, and indefinite handover. Check out our sample test programs to see for yourself.

Options
Attenuators:		Electro-mechanical (DC-18GHz) or Solid-State (0.001-6GHz)
Remote Control:		Ethernet, RS-232, GPIB, or TTL
Manual Control:		Keypad (w/ LCD) or toggle switches
Enclosures:		Benchtop or 19", 23", 24" rack enclosures
Supplied Power:		AC, Dual redundant AC, or DC powered
RF Connectors:		BNC, TNC, SMA, N, etc.
Impedance:		50 Ohm or 75 Ohm

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