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Wave of silence as pandemic silenced HF RFI

Discussion in 'Amateur Radio News' started by K7JOE, Jul 24, 2020.

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  1. K7JOE

    K7JOE Ham Member QRZ Page

  2. W0PV

    W0PV Ham Member QRZ Page

    Last edited: Jul 25, 2020
    WQ4G likes this.
  3. WL7PM

    WL7PM Ham Member QRZ Page

    "high frequency noise fell by 50% in the weeks before lockdown".... Please note that when SEISMOLOGISTS speak of " High Frequency" they are not talking about RADIO.
    For amateur radio, " High Frequency" spans 3 Megacycles through 30 Megacycles... which has naught to do with audio frequency and INFRA-Sonic compression waves sensed by seismographs.
     

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