HAARP Campaign Focuses on HF and VLF Propagation

November 15, 2025The following is a press release from the High-frequency Active Auroral Research Program:

The High-frequency Active Auroral Research Program (HAARP) will be conducting a research campaign November 17-22 UTC, with operating times specified in the table below. Operating frequencies will vary, but all HAARP transmissions will be between 2.75 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, Aerospace Corporation, the University of Colorado-Denver, Embry-Riddle Aeronautical University, the University of Florida, Johns Hopkins University’s Applied Physics Laboratory, the Naval Research Laboratory, and the University of Texas-San Antonio. This research is supported by the Subauroral Geophysical Observatory award (#2054361) from the National Science Foundation. Scientific goals of these experiments include studies on the effects of ionospheric conditions on high-frequency radio wave propagation and generation and propagation of extremely low frequency/very low frequency (ELF/VLF) waves. This campaign will also introduce a Rayleigh LIDAR system as a new diagnostic tool for measuring temperature and density at an altitude of 11-85 km. More information on the LIDAR is available here: https://www.gi.alaska.edu/news/new-lidar-advances-atmospheric-science-uaf-research-site

The table below contains some of the frequencies that are expected to be used for these experiments. Note that these are subject to change based on real-time conditions in the ionosphere. The included transmission notice supplement contains information on the frequencies HAARP is authorized to transmit. HAARP transmissions will only occur on our authorized frequencies. There are no specific data collection requests from funded investigators, but reception reports are appreciated and may be submitted to our online form at https://haarp.gi.alaska.edu/form/reception-reports.

November 17

• 1800-2400 UTC
• 2.75, 4.3 MHz

November 18

• 0000-0330 UTC
• 4.29, 5.25, 5.8, foF2 MHz

November 19

• 0030-0530 UTC
• 4.3, 5.25, 9.6, foF2 MHz

November 20

• 0130-0800 UTC
• 3.25, 4.3, 5.25, 9.6, foF2 MHz

November 21

• 0000-0800 UTC
• 3.25, 4.3, 5.25, 9.6, foF2 MHz

November 22

• 0400-1100 UTC
• 3.089, 9.6 MHz

Additional Resources for Reading Ionograms

Understanding HF Propagation and Reading Ionograms from Bootstrap Workbench: https://www.youtube.com/watch?v=oTFKNCo3Cl8

Reading Your Ionogram-Keeping It Simple from John (VE6EY): https://play.fallows.ca/wp/radio/shortwave-radio/reading-your-ionogram-keeping-it-simple/

Source: HAARP open_in_new HAARP

DXLook Launches Realtime View

November 12, 2025The following is a message from DXLook.com.

DXLook Launches “Realtime View — Live HF Propagation at Your Fingertips

DXLook has introduced a brand-new feature called Realtime View, giving amateur radio operators the ability to watch HF propagation unfold live — second by second — anywhere in the world.

If you’ve ever wanted to see where signals are being heard right now, or track a band opening as it happens, this new view makes it possible. Realtime View connects to live reports from PSK Reporter and instantly displays digital mode activity — including FT8, FT4, and more — as colorful arcs showing real signal paths across the globe.

🌎 What You’ll See

• Spots appearing within seconds of real reception
• Live visualization of band openings and activity
• Filters to focus by callsign, grid square, or band
• Works great on mobile and desktop devices

Realtime View focuses exclusively on digital modes, so you’ll see real data from live transmissions — no models or predictions. It’s perfect for testing antennas, chasing DX, or simply exploring what’s happening on the bands right now.

🚀 Try It Now

Visit dxlook.com, select Realtime from the view menu, and click Go — you’ll see HF propagation come alive within seconds.

Source: DXLook open_in_new DXLook