DS Instruments design and manufacture unique RF Test Equipment including Signal Generators, Digital Attenuators, Mixers, RF Switches, Tracking Generators, Phase Shifters and Frequency Counters. The products are compact, affordable and reliable, making them attractive to engineers and technicians in aerospace, education, military, communications, and laboratories. The instruments are completely powered by and controllable via USB with a PC GUI, automated SCPI COM port commands, and front panel push-buttons making them some of the most flexible devices on the market. Custom applications can also be written using the Windows .NET environment. All the products are designed and made in Nevada, USA.