Friday, May 3, 2024

Notice: Upcoming HAARP ionospheric tests from Alaska - 8th to 10th May 2024

High-frequency Active Auroral Research Program (HAARP) is based in Alaska and it's a high-power, high frequency (HF) transmitter for studying the ionosphere.  The principal instrument is a phased array of 180 HF crossed-dipole antennas  capable of radiating 3.6 megawatts  into the upper atmosphere and ionosphere.  Transmit frequencies are selectable in the range of 2.7 to 10 MHz.

The research team have announced that they will be carrying out tests from the 8th to the 10th of May 2024.

The press release is shown below and I've added a map to show location and distance.

Date: May 2, 2024
To: Amateur Radio & Radio Astronomy Communities
From: HAARP Program Office
Subject: Notice of Transmission

The High-frequency Active Auroral Research Program (HAARP) will be conducting a research campaign May 8-10 UTC, with operating times specified in the table below. Operating frequencies will vary, but all HAARP transmissions will be between 2.8 MHz and 10 MHz. Actual transmit days and times are highly variable based on real-time ionospheric and/or geomagnetic conditions. All information is subject to change.

This campaign is being conducted in support of research proposals from the University of Alaska Fairbanks, and is studying mechanisms for the detection of orbiting space debris. Space debris poses a major risk to all space operations, including manned spacecraft and communications satellites. The experiments being performed at HAARP will help identify ways to improve collision detection on satellites. 

For more information on space debris, see the NASA Orbital Debris Program Office’s FAQ at For more information on research at HAARP, see the online HAARP FAQ at

Note that these experiments will operate at frequencies based on the f0F2 frequency from the Gakona ionograms. In general, transmissions will be very close to the f0F2 frequency. There are no specific data collection requests from funded investigators, but reception reports are appreciated and may be submitted to uaf-gi-haarp AT alaska DOT edu or to: HAARP, PO Box 271, Gakona, AK 99586

For updates on ionospheric conditions in Gakona, please consult ionograms from the HAARP
Diagnostic Suite:

Additional Resources for Reading Ionograms
Understanding HF Propagation and Reading Ionograms from Bootstrap Workbench:

The image above is an annotated ionogram from HAARP that describes features that may be of
interest. Note that f0F2 is calculated at the top left.

f0F2 is the critical frequency of the F2 layer of the Earth’s ionosphere. This is the frequency at
which radio signals stop refracting off the ionosphere and begin passing through to outer space.
For certain HAARP experiments that deal with interactions in the ionosphere, transmission
frequencies below f0F2 are desirable, while for other experiments (such as those involving high altitude satellites), staying above f0F2 is required.

Supplement to HAARP Notice of Transmission
General Information for HAARP Radio Enthusiasts:

1) The HAARP Ionospheric Research Instrument (IRI) transmits only in the frequency range 2.695 to 9.995 MHz,with certain frequencies blocked out as specified in the FCC license for call sign WI2XFX. The emission bandwidth may be up to 46 kHz wide, the actual value depending on the frequency and experiment;

2) The lower frequency transmissions many times are based on a harmonic of the local ionosphere's gyro frequency, the actual frequency depending on the experiment. The fundamental gyro frequency above HAARP varies from roughly 1.5 MHz at lower altitudes to 1.2 MHz at higher altitudes.

3) Higher frequency transmissions many times are based on the critical plasma frequency for the F2 region (foF2), which is determined by the Gakona ionosonde. These higher transmission frequencies may be above, below or at the critical frequency depending on the experiment. Mid-range frequencies often are used for artificial airglow experiments. The critical plasma frequency in the vicinity of HAARP varies widely depending on, among other things, time of day, season and sunspot cycle;

4) One or two carriers are transmitted and one or both of the carriers are modulated. The types of modulation varies with the experiment requirements. Modulation may be AM, FM, LFM or a complex waveform or a time sequence of different modulations;

5) Most experiments depend on ionospheric and geomagnetic conditions that are mostly unpredictable. The transmission frequencies for a given experiment may change to track changes in those conditions with little or no notice;

6) A scheduled experiment that depends on certain ionospheric or geomagnetic conditions may be rescheduled or cancelled if the required conditions do not occur;

7) To request a HAARP QSL card, send reception reports to: HAARP, P.O. Box 271, Gakona, Alaska 99586 USA;

8) Additional information can be found on the HAARP webpage at: .

Monitoring HAARP IRI transmissions with a Software Defined Radio Receiver:
1) Listeners with an SDR receiver capable of 8 MHz bandwidth can monitor the entire frequency band noted above;

2) Transmissions most often are programmed to Start at top of the minute, ie, HH:MM:00 but some start at 30seconds, ie, HH:MM:30. Transmissions usually Stop on the 30 second mark, ie, HH:MM:30 to allow time to retune the transmitter/antenna for the next experiment. There may be exceptions to the Start and Stop times;

3) When a carrier is seen to pop up on the SDR’s displayed spectra, the listener can identify the center
frequency using the SDR software and then reduce the bandwidth to further monitor, demodulate or analyze the signal;

4) If two SDRs are available, one can be used in a wideband mode to locate the signals and the other can be used in a narrowband mode to analyze, demodulate or monitor the specific signals;
File: HAARP Transmission Notice Supplement.docx, Revision 1.2, page 2 

5) Since the maximum emission bandwidth is 46 kHz (±23 kHz), SDRs with a 50 kHz bandwidth setting are able to monitor the entire modulated signal after it is located. However, the center frequency may be stepped through a range of frequencies or may change according to experiment requirements to another, far removed frequency;

6) Not all experiments use the full 46 kHz bandwidth, some use only a pure carrier and some use single

7) Some experiments require a transmitter On – transmitter Off cycle. The cycle times and On-Off ratios typically vary from experiment to experiment but Off times typically are minutes or fractions of a minute. Transmission On times can last from a couple minutes to a couple hours;

8) Radio propagation conditions and the IRI beam direction will affect the reception of the IRI transmissions or cause a fadeout at the receiving antenna location. Propagation conditions and beam directions can change significantly and rapidly during an experiment;

9) Some experiments require the IRI beam to be pointed along or near the local magnetic zenith. This means the beam is pointed parallel or nearly parallel to the local magnetic field lines. The magnetic zenith at the HAARP facility is approximately 75° elevation and 16° east of north;

10) Although the HAARP IRI transmits only in the HF range (see above), the transmissions can and some experiments are designed to generate ELF, SLF, ULF, and VLF emissions in the D/E-regions of the ionosphere. Other experiments may not be designed to generate these low frequency emissions but the emissions are generated as a side effect. Modulated heating of the D/E-region electrons by the HF transmissions in turn modulates the plasma conductivity, which generates a virtual antenna at altitudes between 70 and 85 km. Emissions up to 20 kHz have been demonstrated but most are below a few kilohertz. These low frequency emissions can propagate in the Earth-Ionosphere Waveguide or by other mechanisms, depending on frequency, and conceivably can travel great distances. 


  1. Is this why the skies lit up with colour last night?

  2. The colours in the sky are from an aurora which was caused by a solar flare erupting on the sun. It has nothing to do with HAARP.

    1. my bad, you didn't say that, but some people are using your article to say that HAARP is creating the auroras

    2. Watch more tonight since the sun is still flaring.

    3. "Mid-range frequencies often are used for artificial airglow experiments. The critical plasma frequency in the vicinity of HAARP varies widely depending on, among other things, time of day, season and sunspot cycle;"

    4. Nov. 2, 2023

      Alaskans and visitors may be able to see an artificial airglow in the sky created by the High-frequency Active Auroral Research Program during a four-day research campaign that starts Saturday.

      From another article

  3. I just don’t know what to believe!! The incoming CME’s were unprecedented in their volocity and magnitude! We’re in the middle of an intense sun phase atm! Are you saying they used this activity to carry out their tests?

  4. Just a coincidence then John?

  5. Yes, a complete coincidence. HAARP might cause some airglow effects over Alaska, the aurora was seen all over the world.

    The power of HAARP is tiny in comparison to what the sun can do.

  6. The HAARP tests are planned weeks if not months in advance, they have no idea that an earth pointing solar flare is going to erupt 36-48 hours before their tests.

    1. It's like how the nutjobs say haarp contra, weather, makes volcanoes erupt, causes earthquakes, causes tornadoes, but when you ask them to explain exactly how haarp does those things they can't answer.. Lol

  7. Why when I go into the HAARP website there is no info about May 2024 and any experiments but at the top of this page it looks like that is off the HAARP website, but I can't find it on the website???

  8. haarp can cause artificial airglow

  9. Why is this research campaign not listed on the haarp website? The conspiracy ppl think haarp can produce 100 Billion Watts of power... insane.

    1. I am trying to confirm if they can canceled the campaign and that’s why it is not on their site.

  10. Does anyone know if the 5/8-10 campaign was actually canceled? It’s not listed on their website as a campaign.

  11. It was on their website 2 days ago I saw it, they must have removed it???

  12. Here you are:

  13. Here you are:

  14. ...and here: