The Mexican Array Radio Telescope (MEXART) consists of a 64x64 (4096) full wavelength dipole antenna array, operating at 140 MHz, occupying 9,500 square meters (70 m x 140 m) to carry out interplanetary scintillation (IPS) observations. This is a dedicated radio array for IPS observations located in the state of Michoacan (350 km north-west from Mexico City, lat. 19$^$ 48' N, long. 101$^$ 41' W and 1964 m above sea level). The aim of this instrument is to track large-sclae solar wind disturbances propagating between the Sun and the Earth using the Interplanetary scintillation technique. We report the system testings, radio source measurements and the collaboration plans for the International Heliophysical Year 2007.

Proceedings of the 30th International Cosmic Ray Conference; Rogelio Caballero, Juan Carlos D'Olivo, Gustavo Medina-Tanco, Lukas Nellen, Federico A. Sánchez, José F. Valdés-Galicia (eds.); Universidad Nacional Autónoma de México, Mexico City, Mexico, 2008; Vol. 1 (SH), pages 393-396