The project is aimed to develop a prototype of pulse compression ionosonde for vertical surveys (coded pulse radar) that, based on SDR (Software Defined Radio) devices, makes it possible to realize a programmable instrument that is therefore versatile and innovative compared to classical ionosondes. The programmable ionosonde (AISP) is an evolution of the AIS (Advanced Ionospheric Sounder) ionosonde completely designed and built at INGV and still functioning at the ionospheric observatory in Rome. The AISP ionosonde is an ionosonde for vertical soundings consisting of an SDR device that acts as a transmitter and receiver of the Radio Frequency (RF) signals and generator of all the control signals of the devices necessary for the operation of the ionosonde as the radio frequency (RF)...