Samples of SIDs from Solar Region 649




18.7 MHz Sudden Ionospheric Disturbances captured from New Mexico.

SIDS noted as chart trace dropouts.










 









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For other solar radio observation pages and sound files click arrow below




Radio :  ICOM R-75
Antenna :  Half wave dipole cut to frequency
Charting  : Radio Sky-Pipe

Thomas Ashcraft


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