The LDA-802-48 from Vaunix is a 48-channel Digital Attenuator that operates from 200 to 8000 MHz. This bi-directional attenuator provides up to 120 dB of attenuation with a step size of 0.1 dB and an accuracy of 1 dB. It has a switching speed of 2 us, an insertion loss of less than 11 dB, and a VSWR of 1.50:1. This 50-Ohm attenuator is easily programmable for fixed attenuation, swept attenuation ramps, and user-defined fading profiles directly from the included Graphical User Interface (GUI). It brings affordability, functionality, reliability, and simplicity to the microwave test bench.
The LDA-802-48 includes a USB-C interface for power and control and an Ethernet interface for control. The USB port uses a native HID interface to avoid the difficulties inherent in using older serial or IEEE-488 interfaces implemented over USB. This attenuator also supplies LabVIEW drivers, Windows API DLL files, macOS DYLIB files, Linux drivers, Python examples, and more for users wishing to develop their own interface.
The LDA-802-48 is available in a rack-mountable enclosure that measures 17 x 13 x 5.25 inches with SMA-female connectors. It is suitable for Wi-Fi, Wi-Fi 6E, cellular (3G, 4G, 5G, LTE), DVB, microwave radio fading simulators, engineering/production test labs, and automated test equipment (ATE) applications.
