The Nanosat-1B Spanish satellite, designed, developed and operated by the Instituto Nacional de Técnica Aeroespacial (INTA), is a nanosatellite which weighs 22 kg. Its main mission is the communication between remote sites like the Antarctic, the Hespérides warship and Spain. The Nanosat-1B has fourteen sides, all of them covered by solar cells but the bottom one where the following antennas are installed: a medium gain Ultra high frequency (UHF) four wire antenna and two patch antennas. On the top side there are four UHF monopoles. The solar sensors and the Vectorsol experiment are located in the middle tray, being all the other equipment and experiments located inside the satellite.