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3 datasets found

  • Ionograms - Analog

    State of Washington —

    Ionograms are recorded tracings of reflected high frequency radio pulses generated by an ionosonde. Unique relationships exist between the sounding frequency and the...

  • Ionograms - Digital

    State of Washington —

    Ionograms are recorded tracings of reflected high frequency radio pulses generated by an ionosonde. Unique relationships exist between the sounding frequency and the...

  • Scaled Data from Digital Ionograms

    State of Washington —

    All the data contributed come from 1957 through 1990. They have been digitized, reformatted, converted to universal time (the software also can display the data in...
3 datasets found

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