Propagation

FunkWX - weitere M-Flares möglich

FunkWX - more M-flares possible

The DARC propagation report describes mostly quiet but locally unsettled geomagnetic conditions and moderate solar activity with two minor M-class flares. Further flares are possible, and the ionosphere is slowly returning to normal.

FunkWX - neuer Sonnenfleck mit Flare-Potential

FunkWX – new sunspot with flare potential

Solar wind speed is elevated at about 510 km/s but expected to ease, with geomagnetic activity mostly quiet to unsettled. A new, increasingly complex sunspot facing Earth could raise flare activity.

FunkWX - Sonnenwind hochgestuft

FunkWX - Solar wind upgraded

Solar wind from a coronal hole is rated strong, with speeds above 500 km/s, and should ease from 6 October. Geomagnetic activity is active to stormy, solar flux is moderate, and HF conditions are disturbed.

Propagatienieuws – week 41 2026

Propagation news – week 41 2026

VERON's weekly propagation outlook for week 41 covers HF MUF ranging from about 10 MHz at night to around 24 MHz by day. It also covers tropo, sporadic-E, meteor scatter, aurora and EME conditions.

Where Will Your Signal Go? Explore the RSGB's Online HF Propagation Tools

The Wireless Institute of Australia points readers to the RSGB's set of online HF propagation tools, which help estimate where a signal is likely to be heard on the bands.

FunkWX am Wochenende

Radio weather for the weekend

A predicted coronal mass ejection only grazed Earth overnight, with no lasting effect on propagation. Geomagnetic activity should stay mostly quiet until stronger solar wind arrives around 4 October (Kp 4–5). Flare risk is very low and DX conditions are usable to good.

FunkWX - Magnetstürme möglich

FunkWX - Magnetic storms possible

A coronal mass ejection may graze Earth soon, possibly raising geomagnetic activity to unsettled or active with minor G1 storms. Fast solar wind from a coronal hole is also expected on 4 October.

Ionosondas. Qué son y para qué sirven, por David Altadill

Ionosondes: what they are and what they are for, by David Altadill

David Altadill explains what ionosondas are and what they do. These stations analyse the ionosphere, and their worldwide data feed HF propagation understanding and prediction programs.

Propagatienieuws – week 40 2026

Propagation news – week 40 2026

The week 40 propagation outlook gives HF MUF from about 10 MHz at night to around 24 MHz by day, with rain scatter chances on microwave bands. Meteor scatter and aurora look quiet, and EME losses are decreasing.

Ausbreitungsvorhersage für 10/2026

Propagation forecast for October 2026

DARC's October forecast expects good HF conditions, with 10, 12 and 15 m often open and 20 and 40 m reliable for DX. It uses a smoothed sunspot number of 75; strong geomagnetic storms could degrade conditions.

The ARRL Solar Update

NOAA's Space Weather Prediction Center expects low solar activity through September 25, with occasional C-class flares and a slight chance of M-class events. Nine sunspot regions are visible, including new Region 4541.

Ciclo de charlas: Ionosondas. Qué son y para qué sirven.

Talk series: Ionosondes. What they are and what they are for.

URE streams a talk on ionosondas and their uses on YouTube on 30 September at 17:30 UTC. The speaker is David Altadill Felip of the Ebro Observatory.

Deutschland-Rundspruch 37/2026, 38. KW

Germany Bulletin 37/2026, week 38

DARC's weekly bulletin 37/2026 covers the continuing debate over AST Bluebird satellites and the 430–440 MHz allocation. It also reports ISAR launching two satellites for amateur bands, a new Berlin district board, and contest and propagation news.

Propagatie verwachting

Propagation forecast

VRZA publishes a propagation forecast as an image that readers open on a separate page.

Experimenten en meetactiviteiten voor radioamateurs tijdens de gedeeltelijke zonsverduistering

Experiments and measurement activities for radio amateurs during the partial solar eclipse

Experiments are planned around the partial solar eclipse of 12 August 2026 to study propagation changes. They include an RSGB HF activity on 40 and 80 metres, WSPR and FST4W beacon monitoring, and medium-wave listening tests.