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Author Topic: 7MHz LSB with carrier, alarm sound  (Read 6043 times)

Robot Matrix

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    • West-central, MO, USA
7MHz LSB with carrier, alarm sound
« on: January 29, 2025, 0311 UTC »
0309 UTC 29 JAN 2025
Hearing this alarm sound right now.  Sounds like a 2nd faint echo as well. Any idea what this is?

« Last Edit: January 29, 2025, 0330 UTC by Robot Matrix »
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eQSL: [email protected] THANKS!
NESDR Smart V5, Ham It Up upconverter v1.3, WEB-888 SDR, (tr)uSDX, Raddy RF760, Inverted L Antenna 20' up and 30' over with adjustable base loading coil, and various other antennas to cover 1kHz-1+GHz. Unless otherwise noted, all signals or broadcasts are received at my QTH with my own gear.

Token

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Re: 7MHz LSB with carrier alarm sound
« Reply #1 on: January 29, 2025, 0315 UTC »
This is HAARP, out of Alaska.  They started on this freq at 0130 UTC, but this specific waveform started at 0230 UTC.

Moved form the Mystery forum as it is not a mystery anymore.

T!
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T!
Mojave Desert, California USA

Robot Matrix

  • Sr. Member
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  • Posts: 338
    • West-central, MO, USA
Re: 7MHz LSB with carrier alarm sound
« Reply #2 on: January 29, 2025, 0329 UTC »
Quote from: Token on January 29, 2025, 0315 UTC
This is HAARP, out of Alaska.  They started on this freq at 0130 UTC, but this specific waveform started at 0230 UTC.

Moved form the Mystery forum as it is not a mystery anymore.

T!

Thanks!
Logged
eQSL: [email protected] THANKS!
NESDR Smart V5, Ham It Up upconverter v1.3, WEB-888 SDR, (tr)uSDX, Raddy RF760, Inverted L Antenna 20' up and 30' over with adjustable base loading coil, and various other antennas to cover 1kHz-1+GHz. Unless otherwise noted, all signals or broadcasts are received at my QTH with my own gear.
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