ASWFC PRELIMINARY HF RADIO COMMUNICATIONS WARNING 26/30 ISSUED AT 0049UT/31 MARCH 2026 BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

A Coronal Mass Ejection has been observed, and is expected to impact Earth at 31/1600UT +/- 10 hours. Maximum Usable Frequencies are expected to become depressed over the following 72 hours.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED FROM 31 MARCH 2026 TO 02 APRIL 2026

#cme #solar #hf #propagation

Source: https://listserver.ips.gov.au/pipermail/ips-hf-warning/2026-March/001637.html

Holy cow this weekend was insane on HF. I ended up with 142 SSB POTA contacts, on all bands from 40 meters to 10 meters. It was so much fun! The colors are listed in the image's ALT text. I think I need a vacation after all that!

#HF #POTA #hamRadio #amateurRadio #10m #12m #15m #17m #20m #40m #insanity #EFHW

Not1MM Changes since last update

Work All Germany
Dutch PACC
RSGB IOTA
Basic State QSO party logging.
Zone Tracker Window
Rate Window
Poll for A and K indexes and spot counts
Many dead bugs.

#HamRadio #HF #contest #python #linux #macOS
https://github.com/mbridak/not1mm

A fast beacon, Radio Marti, and an EAM all in one waterfall. For your viewing enjoyment.

EDIT: That "fast beacom" may be more than just a beacon. It has some features to it that are more than just the beeps, some tones appear in the spaces between the beeps. I don't see any good explanation on the web yet but I do think it is military.

#hf #shortwave #sigint

I'm not 100% familiar with the frequency of "Sky King" Emergency Action Messages but it seems like they're going crazy today. The one I'm currently listening to, "invictus," sounds suspiciously like it's from an airborne source given the high frequency hum and people talking in the background. I heard at least one "shit."

#shortwave #sigint #hf #iranwar

If this is Radio Republica broadcasting to Cuba from Issoudun in France on 9.49 MHz AM, they have a transmitter problem I can only describe as "WTF that sounds evil."

#shortwave #hf #radio

Oh yeah look at that WAR MACHINE GO!!! OOOOO RAH!!!!!

I thought I might need to rotate my loop antenna but nah.

#shortwave #hf #sigint

Very strong data modem transmission at 14.85 MHz. Gonna be military. Houston, TX.

#shortwave #hf #sigint

Just remember folks, governments gave hams the entire shortwave band because they thought it was useless. Hams figured out how to use it to reach around the world. Governments stole it back in order to wage war.

#shortwave #hf #radio #war #amateurradio