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G7IZU Radio Reflection Detection

@g7izu.bsky.social

170 followers 73 following 920 posts

Space Weather, Amateur Radio, Flight Simulation, Sciency stuff 📡 Long posts may be split after being forwarded from Mastodon. G7IZU Radio Reflection Detection Website: https://www.tvcomm.co.uk/g7izu/ #spaceweather #amateurradio #aurora #g7izu

www.tvcomm.co.uk

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 17m

Broadcasting: Celebrity Traitors (BBC)

These bits usually end up as out-takes on the cutting room floor, but I'm so proud that the BBC left this one in! 👃

#broadcasting
#celebritytraitors2025
#bbc
#g7izu

Video: https://universeodon.com/@g7izu/115380442687894468

G7IZU Radio Reflection Detection @g7izu.bsky.social · 3h

🤣🤣🤣🤪😀🤭🫣

G7IZU Radio Reflection Detection @g7izu.bsky.social · 4h

This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

#spaceweather
#g7izu

G7IZU Radio Reflection Detection @g7izu.bsky.social · 4h

Space Weather

An M1.1 flare peaked at 14h10 UT 15 Oct.

A 10cm radio burst was observed at 15h21 UT. A noise burst upto 10 GHz was observed on the Owens Valley Solar Array.

Owens Valley solar array observation of a radio burst reaching up to ~10 GHz.

G7IZU Radio Reflection Detection @g7izu.bsky.social · 4h

Space Weather

An M1.1 flare peaked at 14h10 UT 15 Oct.

A 10cm radio burst was observed at 15h21 UT. A noise burst upto 10 GHz was observed on the Owens Valley Solar Array.

G7IZU Radio Reflection Detection @g7izu.bsky.social · 5h

Space Weather

An M1.1 flare peaked at 14h10 UT 15 Oct.

A 10cm radio burst was observed at 15h21 UT. A noise burst upto 10 GHz was observed on the Owens Valley Solar Array.

G7IZU Radio Reflection Detection @g7izu.bsky.social · 12h

Space Weather

Movie of AR4246 producing flares this morning.

NASA/SDO AIA131

#spaceweather
#g7izu

Video: https://universeodon.com/@g7izu/115377648540213655

G7IZU Radio Reflection Detection @g7izu.bsky.social · 13h

Radio conditions on HF are going to be noisy. There may be some disruption of GPS signals in some areas during geomagnetic storming.

#spaceweather
#amateurradio
#aurora
#g7izu

G7IZU Radio Reflection Detection @g7izu.bsky.social · 13h

Space Weather

Solar Flare Alert: The sun has really woken up this week! We have been getting some sizable Earth-directed flares since 11 Oct.

This morning: AR4246 fired an M4.8 flare peaking at 04h15 UT 15 Oct. AR4246 also launched an M3.7 flare which peaked at 07h18 UT 15 Oct.

NASA/SDO AIA131 image of M4.8 flare from AR4246

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 23h

I think the outage was mostly confined to Vodafone and a few mobile carriers.

G7IZU Radio Reflection Detection @g7izu.bsky.social · 23h

Turns out it was a Vodafone issue which also affected a few mobile providers who use Vodafone to pipe their services. When I posted the message Down Detector was showing a spike in reports for many providers. I'm presuming you are not on Vodafone so we're ok.

G7IZU Radio Reflection Detection @g7izu.bsky.social · 1d

Space Weather

More images of the limb eruption at 20h30 UT 14 Oct. AR4246 is in the foreground.

#spaceweather
#g7izu

G7IZU Radio Reflection Detection @g7izu.bsky.social · 1d

A large prominence erupted from the north-west limb at around the same time. More pictures to follow.

#spaceweather
#g7izu

G7IZU Radio Reflection Detection @g7izu.bsky.social · 1d

Space Weather

An M3.2 flare peaked at 20h38 UT 14 Oct. An R2 radio blackout affected the eastern Pacific region. The flare again originated from AR4246.

Multiple CMEs (coronal mass ejections) from AR4246 are inbound to Earth. Geomagnetic storms are predicted between 15-17 Oct.

Plot of solar flux and dashboard items showing solar data.

D-layer absorption map (D-RAP) indicating with bright colours the area of an R2 radio blackout.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 1d

Space Weather

An M2.0 flare erupted from AR4246 and peaked at 00h41 UT 14 Oct.

#spaceweather
#g7izu

Plot of solar XRay Flux. The M2.0 flare is highlighted.

Nasa/SDO image of the sun using filter AIA131. The M2.0 flare is seen in the centre of the image.

G7IZU Radio Reflection Detection @g7izu.bsky.social · 2d

#g7izu

G7IZU Radio Reflection Detection @g7izu.bsky.social · 2d

Space Weather

An M1.3 flare peaked at 13h18 UT 13 Oct. A type II radio emission was observed, indicating the potential for a CME being launched.

The flare originated from Earth-facing active region AR4246, which has been responsible for several flares during the last 24 hours.

#spaceweather

NASA/SDO image using filter AIA131 of an M1.3 flare erupting from AR4246 at 13h18 UT 13 Oct 2025.

G7IZU Radio Reflection Detection @g7izu.bsky.social · 2d

Good news, we're back online!

G7IZU Radio Reflection Detection @g7izu.bsky.social · 2d

The outage is now entering its third hour. I'm only getting this message out because the connection at work is ok.

G7IZU Radio Reflection Detection @g7izu.bsky.social · 2d

As a consequence the propagation maps on my website are not updating. Please check back periodically for further updates.

https://www.tvcomm.co.uk/g7izu/

#broadband
#bt
#o2
#g7izu

G7IZU Radio Reflection Detection @g7izu.bsky.social · 2d

Service outage

Vodafone in the UK and most major UK internet and mobile providers are currently suffering a major outage with broadband service. Basic mobile voice and text appears still to be working. I'm not yet aware how widely this outage has spread.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 2d

Increasing solar activity has increased noise on the HF bands. Conditions on HF are mostly "fair" at this time.

#spaceweather
#amateurradio
#radiopropagation
#g7izu

G7IZU Radio Reflection Detection @g7izu.bsky.social · 2d

Space Weather

An M2.7 flare peaked at 09h19 UT from almost Earth-facing region AR4246. A minor R1 radio blackout affected eastern and southern Africa.

An M1.9 flare also erupted from AR4246 at 05h27 UT 13 Oct.

Image of the sun taken by NASA/SDO using filter AIA131. An M2.7 flare erupted from active region AR4246 at 09h19 UT on 13 Oct 2025. AR4246 is slightly north-east of the centre of the solar disc.

DRAP (D-layer absorption) map during the M2.7 flare. Bright colours indicate that a minor R1 radio blackout occurred over Africa during the flare.

Plot of solar xray flux during the last 6 hours.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 2d

Oh, now I am!

G7IZU Radio Reflection Detection @g7izu.bsky.social · 2d

It's curious that I'm not hearing any FT8 from that direction tonight. Propagation is a fickle thing!