JFW model 75PA-084 F quad channel 75 Ohm attenuator assembly with Ethernet control

75PA-086 F three channel attenuator assembly with Ethernet and serial remote controlBenchtop Attenuator Assemblies (75 Ohm)

Below are our online 75 Ohm programmable attenuator assemblies with benchtop enclosures. The attenuators are step attenuator type with either electro-mechanical or solid-state design. The relay step attenuators are electro-mechanical and have typical lifetime of 1 million operations. The solid-state step attenuators have no moving parts so there are no mechanical wear concerns. Solid-state attenuators have typical MTBF of 250,000 hours.

Remote Control

Our test systems are available with Ethernet, Serial, or GPIB remote control. The remote control features easy to use ASCII formatted remote commands. The step attenuators can be controlled individually (set attenuator command) or as a group (block command, set block command). All test systems with Ethernet/Serial control run out latest generation 3.x.x firmware. Use our Ethernet Test Box to demo the 3.x.x firmware.

Models with Keypad/Display

JFW Model #ImpedanceConfigurationdB TotaldB StepFrequency StartFrequency StopControlRF Connectors
75PA-05275 Ohm2 Attenuators127 dB1 dB450 MHz2150 MHzKeypad, Ethernet, RS-232F
75PA-07675 Ohm2 Attenuators63 dB1 dBDC2150 MHzKeypad, Ethernet, RS-232F
75PA-08475 Ohm4 Attenuators63 dB1 dB5 MHz1650 MHzKeypad, Ethernet, RS-232F
75PA-08675 Ohm3 Attenuators63 dB1 dB5 MHz1650 MHzKeypad, Ethernet, RS-232F
75PA-08875 Ohm2 Attenuators95.5 dB0.5 dBDC1000 MHzKeypad, Ethernet, RS-232F

Models with Manual Levers

JFW Model #ImpedanceConfigurationdB TotaldB StepFrequency StartFrequency StopControlRF Connectors
75PA-09075 Ohm4 Attenuators63 dB1 dB5 MHz1000 MHzLevers, Ethernet, RS-232F
75PA-10375 Ohm1 Attenuator63 dB1 dB5 MHz1650 MHzLever, Ethernet, RS-232F
75BA-004-9575 Ohm2 Attenuators95 dB1 dB5 MHz2150 MHzLevers, Ethernet, RS-232F

Demo Units Available

JFW does stock some attenuator assemblies as demo units.  Contact our sales department for availability.  If you want to try out our firmware, then check out the online Ethernet Test Box running our latest generation firmware.

Custom Models

If you do not find an online model that meets your requirements, please use our inquiry form or email our engineering department. We will respond with a quick cost estimate. JFW does not charge NRE fees for new model designs. A large portion of the RF test systems that we manufacture are per custom requests.