1 Introduction
1.1 Radio frequency observations
2 Space weather sensor systems using radio spectrum
2.1 Sensors observing solar precursor events
2.1.1 Sensors observing the Sun
2.2 Sensors observing the interplanetary medium
2.2.1 Interplanetary scintillation
2.3 Sensors observing the impact of space weather
2.3.1 Radionavigation-satellite service (RNSS) receiver
2.3.2 Radio telescopes for ionospheric observation
2.3.3 Ionosonde
2.3.4 Incoherent Scatter Radar
2.3.5 Coherent scatter radar
2.3.6 Other Radar Systems
2.3.7 Ionospheric Tomography
3 Technical and operational parameters of space weather sensors
4 Appropriate radio service designations for space weather sensors
4.1 Potential radio service designation
4.2 Consideration on space weather sensor system types
4.2.1 Solar flux monitors
4.2.2 Solar spectrographs
4.2.3 Riometers
4.2.4 VLF atmospheric scattering
4.2.5 Scintillation monitors
4.2.6 RNSS-based observations
4.2.7 Ionospheric radars
4.2.8 Ionospheric sounders
4.2.9 Canadian high frequency transmitter - receiver
network
5 Regulatory aspects
Annex 1 Categorization of the RF-based sensors in regards to support of
current space weather products