The LMS-271D from Vaunix is a USB signal generator which operates from 0.5 MHz to 270 MHz. It has a fast switching time of 100 microseconds, 100 Hz of frequency resolution and requires no additional DC supply voltage. The signal generator has low noise, fast switching time of 100-microseconds, a resolution of 100 Hz and theability for GUI software to track and control several connected signal generators, simplifying multiple-signal test setups.It is ideal applications for these products include buildingautomated test equipment (ATE), use as a portable LO source, and engineering/production test lab use, both stationary and mobile.