The Vaisala AVAPS Lite Dropsonde Receiving System is a one-channel dropsonde receiving system for atmospheric researchers who require targeted, detailed, accurate and real-time atmospheric profiles of pressure, temperature, humidity (PTU) and wind.

The Vaisala AVAPS Lite is a smaller, lighter, one-channel version of the full-scale Vaisala AVAPS. It receives data from a single dropsonde at a time and can be operated with a laptop PC. The Vaisala AVAPS Lite sounding software receives and displays the raw dropsonde data on the PC in real-time. The data is stored in ASCII format on the hard drive, where it can be post-processed and displayed with programs written by the user or with dedicated data processing software. The Vaisala AVAPS Lite uses the same sounding software and data processing hardware as the Vaisala multi-channel AVAPS: the data outputs and post-processing programs are compatible.