AIS rack portatile1

AIS-INGV (Advanced Ionospheric Sounder) is an HF band radar designed and built at the Istituto Nazionale di Geofisica e Vulcanologia to study and monitor ionospheric dynamics through vertical ionospheric probing. AIS-INGV responds to the need to have a simple and efficient tool to investigate the Earth's ionosphere. It was designed using the most advanced radar techniques, with the result of reducing RF power, weight and dimensions while maintaining a highly reliable measurement capability even in noisy environment. The instrument is completed by the Autoscala software which analyzes the ionogram deriving the main ionospheric characteristics along with the density profile and TEC. The instrument built in various sample is installed in the following ionospheric observatories:

  • Rome and Gibilmanna (Italy)
  • Mario Zucchelli station (Antarctica)
  • San Miguel de Tucuman (Argentina)
  • Bahia Blanca (Argentina)
  • Juan Carlos I, Spanish base at Livingstone Island (Antarctica)


digisonde photo large1

The DPS (Digisonde TM Portable Sounder) produce by of Massachusetts Lowell’s Center for Atmospheric Research (UMLCAR) is an ionosonde for probing the terrestrial ionosphere through the vertical and oblique sounding techniques. It exploits the modern radar techniques, such as pulse phase coding, digital pulse compression and Doppler integration, to obtain a small, compact low power system to monitor and study the ionospheric dynamics. Based on a multiple antennas and multiple receivers arrangements it is able to perform interferometric analysis of the received signal to support the basic vertical sounding with ordinary and extraordinary rays recognition, Doppler measurements and sky map facilities. The system is completed by Artist software able to scale ionograms automatically providing ionospheric parameters, density profile and TEC measurements.


polar rxs  polar rx5s

The PolaRxS and the newest PolaRx5S are multi-frequency multi-constellation receiver able to track GPS L1CA, L1P, L2C, L2P, L5; GLONASS L1CA, L2CA; Galileo E1, E5a, E5b, E5AltBoc; COMPASS B1, B2; SBAS L1. They are equipped with a low-noise OCXO oscillator and stores, for every satellite in view and for every available frequency, the raw phase (in cycles) and post-correlation I and Q samples acquired at a sampling rate of 50/100 Hz. They are able to provide, with a 1-minute resolution, the amplitude (S4) and phase (sF) scintillation indices, together with the Total Electron Content (TEC) and its rate of change (ROT).



NovAtel’s GPStation-6 technology combines a rugged enclosure with an ultra-low phase noise OCXO and advanced OEM628 receiver, providing a modernized GNSS Ionospheric Scintillation and TEC Monitor (GISTM) receiver. With the 120-channel multi-constellation, multi-frequency OEM628 measurement engine at its core, the GPStation-6 provides advanced GISTM algorithms for Ionospheric Scintillation Monitoring (ISM) and Total Electron Content (TEC) measurements for all tracked signals. Depending on the GPStation-6 model, ISM and TEC measurements are output for a combination of the following GNSS constellations and signal types: GPS L1-C/A, L2-P(Y), L2C, L5; GLONASS L1, L2; Galileo E1, E5a, E5b, AltBOC; SBAS L1, L5; COMPASS; QZSS


GSV4004A and GSV4004B

The GSV4004A or the following GSV4004B are the receivers that constitute the “GPS IONOSPHERIC SCINTILLATION & TEC MONITOR (GISTM)” The primary purpose of the GISTM is to collect ionospheric scintillation and TEC data for all visible GPS satellites (up to 10), and up to 3 SBAS-GEO satellites, and output data logs, called “ISMR”. The GISTM’s data logging operation can be controlled to collect the ISMR data logs that are generated every minute. Raw 50-Hz phase and amplitude data logs are also available as GISTM output.