JFW produces programmable attenuator systems for many applications
(WorldNews Finland)

JFW offers programmable attenuators ranging from a single unit to a limited-fan-out 24-port transceiver test system. Depending on the model: the maximum attenuation ranges from 0 dB to 127 dB, in steps as small as 0.1 dB. The attenuator is controlled by a combination of digital inputs, an analog voltage or via USB, RS-232, Ethernet or GPIB (the attenuation is controlled externally by an external analog or digital signal, either manually or via a computer. ) The...