SPECTRUM MONITORS
Culgoora (Australia)
![](../../movil/icono_ips.jpg)
Culgoora spectrograph, IPS Radio and Space Services (18-1800 MHz). Last hour data.
Hiraiso (Japan)
![](../../movil/icono_nict.jpg)
Hiraiso Solar Observatory spectrograph (25-2500 MHz). Last 6 hours data.
Humain (Belgium)
![](../../movil/icono_sidc.jpg)
SIDC Callisto spectrograph (45-387,6 MHz). Last 15 minutes data.
Noise Storms
![](../../movil/icono_noaa.jpg)
Last solar radio bursts and storms in HF, VHF and UHF.
ABSORPTION IN THE HF BAND
HF current fading (IPS)
![](../../movil/icono_ips.jpg)
Current fading in the HF band caused by solar X-rays. Updated every 5 minutes.
Last fading event in HF (IPS)
![](../../movil/icono_ips.jpg)
Last HF fadeout event (check the date). Updated in accordance with solar activity.
NOAA DRAP2 Global
![](../../movil/icono_noaa.jpg)
Global D-region absorption prediction. Highest affected frequency by 1 dB absorption.
NOAA DRAP2 North Pole
![](../../movil/icono_noaa.jpg)
Highest affected frequency by 10 dB absorption.
North Pole radio paths.
NOAA DRAP2 South Pole
![](../../movil/icono_noaa.jpg)
Highest affected frequency by 10 dB absorption.
South Pole radio paths.
IONOGRAMS
El Arenosillo (Huelva, Spain)
![](../../movil/icono_inta.jpg)
Latest ionogram from El Arenosillo station (INTA). Updated every 15 minutes.
Roquetes (Tarragona, Spain)
![](../../movil/icono_obsebre.jpg)
Latest ionogram from the Ebro Observatory. Updated every 2 minutes.
Digisonde Global Station List
![](../../movil/icono_umlcar.jpg)
Digisonde Global Station List, CAR, Univ. Massachussetts Lowell.