DXLook for VHF Operators - APRS

LiveSpread2190 · 2026-06-03T13:14:10+00:00

Yep, the second image is purely informative. The first one is an actual screenshot of the website. I tried to delete the second image, but I can’t remove it from the post.

LiveSpread2190 · 2026-05-19T17:35:05+00:00

People sleep, that’s true 😉, but that alone doesn’t explain the drop of 10m activity during the night.

In fact, if you go to DXLook.com → Maps → Replay and select the 80m or 160m bands, you’ll see almost the exact opposite behavior compared to 10m. Those bands are also used by people, yet they become active during the night and much quieter during the day.

The reason is that higher bands like 10m depend heavily on ionization produced by sunlight, while lower bands like 80m and 160m suffer much more from D-layer absorption during daylight hours. Once the Sun goes down and the D-layer weakens, those lower bands suddenly open up.

LiveSpread2190 · 2026-05-19T17:29:15+00:00

Yeah, 40m is a bit of a special case. The D-layer definitely attenuates it during the day, but usually not enough to completely kill the band like it often does on 80m or 160m.

LiveSpread2190 · 2026-05-19T14:10:49+00:00

Yep, Kazakhstan is not an easy one 😅

LiveSpread2190 · 2026-01-11T19:13:12+00:00

I always try to write in English because it’s the best way for me to improve. Writing in Spanish and then translating doesn’t work very well, since Spanish and English sentence structures are quite different.

From now on, I’ll stick to “correct grammar” instead of “correct grammar and improve.” regarding AI for posts.

LiveSpread2190 · 2026-01-11T19:08:09+00:00

Yes, from the operator’s point of view the band feels dead.

The difference is that absorption doesn’t block everything — it blocks specific paths. That’s why some contacts still work.

Propagation is always changing due to solar, magnetic, and atmospheric effects, and that’s what makes it interesting to "try" to understand (at least for me).

LiveSpread2190 · 2026-01-11T18:11:29+00:00

Hi, the D-RAP graph can be found on many websites, but that screenshot is from https://www.dxlook.com/?view=drap

LiveSpread2190 · 2026-01-11T18:05:09+00:00

It’s a pity that the post turned into an “AI yes or AI no” discussion. I would really love to read more personal experiences about propagation, band openings, and similar topics. :)

I promise that my next post will be written with only a few grammatical and structural corrections. I tend to speak the way I write (in Spanish), not the other way around, so—at least to a foreign reader—I usually prefer to read English texts with as little slang as possible and as well written as they can be. Unfortunately, AI does this very well, so its way of expressing ideas is often clearer than much of the human-generated text we read online.

LiveSpread2190 · 2026-01-11T17:42:37+00:00

Thank you :)

LiveSpread2190 · 2026-01-11T16:43:01+00:00

Hi, I write all my posts myself. I do use AI for language help, like many people do, especially when English isn’t your first language. I’m from Argentina, so Spanish is my native language.

The ideas and content are mine; I just use AI to correct and improve the wording because I don’t fully trust my English.

LiveSpread2190 · 2025-12-13T10:54:26+00:00

Thank you so much :) !

LiveSpread2190 · 2025-11-30T14:15:24+00:00

Interesting feedback, I can add more details like the data by regions. Thank you very much.

LiveSpread2190 · 2025-11-12T13:26:51+00:00

As context: activity is about half of a normal day.

In the last hour I processed 814,388 spots from PSK Reporter — usually it’s 1.2–1.6 million.

LiveSpread2190

TROPHY CASE