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G7IZU Radio Reflection Detection @g7izu.bsky.social · 22h

For offline mapping I'm using Hamclock and Grid Tracker.

#radiopropagation
#amateurradio
#g7izu
#wspr
#ft8

G7IZU Radio Reflection Detection @g7izu.bsky.social · 22h

I'm currently decoding all WSPR and FT8 bands using two instances of WSJT-X v3, using the HF+ for WSPR and a Yaesu FT857D for FT8, feeding data to https://wspr.aprsinfo.com/ for WSPR and https://shorturl.at/ENYjH (PSK Reporter) for FT8. All HF bands are scanned several times per hour.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 22h

Also on the map is Polish station SQ3XZ on 21 MHz running only 1mW! Offscreen, I'm also receiving VK3QN near Melbourne running 5W. WSPR is a low-power data mode which takes 2 minutes to send a message, usually consisting of just a callsign, locator and power level information.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 22h

Radio Propagation

WSPR and FT8 are incredible modes for plotting radio propagation.

Map showing WSPR stations received by G7IZU. Highlighted is amateur balloon SP6MPL.

Map showing amateur balloon locations with lines showing past track over 24 hours.

Another WSPR map highlighting reception by G7IZU of 1mW station SQ3XZ

Capture of PSK Reporter map showing stations received by G7IZU on all HF bands in the last hour.

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

Storm Amy

Easyjet EZY857D from London Gatwick to Aberdeen is diverting to... London Gatwick!!

Oh dear...

https://www.flightradar24.com/EZY827D/3c802bc9

#stormamy
#g7izu

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

Storm Amy

Ryanair appears to be safely on the ground at Manchester. The Canadian C130 is not far behind.

#stormamy
#g7izu

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

Storm Amy

A second plane (Canadian Air Force C130) is now sqwawking 7700 and is heading towards Manchester.

https://www.flightradar24.com/CFC2955/3c7f7a9c

#stormamy
#g7izu

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

Storm Amy

Ryanair flight RYR7NV squawking 7700 (probably a fuel emergency). The plane attempted to land at Prestwick several times, then once at Edinburgh. It's now headed south towards Manchester.

Track here:
https://www.flightradar24.com/RYR7NV/3c7f91f4

#stormamy
#g7izu

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

Learn more about the basics of radio propagation here:

https://www.electronics-notes.com/articles/antennas-propagation/ionospheric/hf-propagation-basics.php

#radiopropagation
#amateurradio
#g7izu

HF Propagation: Ionospheric Radio Propagation » Electronics Notes

Key concepts behind HF ionospheric radio propagation: ionosphere; D, E, F layers; solar effects; gauging propagation; . . all you need to know.

www.electronics-notes.com

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

Radio propagation

2/2 Compare this to approx12 hours later, where Europe and Africa are now in daytime and are enjoying the higher frequency bands Whilst the Americas (esp N America in this case) are having to use the lower bands to stay in contact.

HF Radio propagation: Daytime over Europe and Africa

Credit: https://www.electronics-notes.com/articles/antennas-propagation/ionospheric/ionosphere.php

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 6d

Radio Propagation

East-west split: Propagation conditions and timing have forced a very defined split of HF frequencies between the Americas and Europe.

The Americas are working the 20-10m bands, whilst Europe is going strong on 40-160m.

#radiopropagation
#amateurradio
#g7izu

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 6d

#jetstream
#g7izuVideo: https://universeodon.com/@g7izu/115306260907713096

𝑮7𝑰𝙕𝑼 𝑹𝙍𝑫 (@[email protected])

Attached: 1 video Terrestrial Weather Storm Amy is incoming and will hit northern Ireland and western Scotland on Friday. Meanwhile, the jet stream across the Atlantic is running at a maximum of around 350km/h! No record, but for comparison, the average winter jetstream speed is around 213km/h. #weather #stormamy #jetstream #g7izu

universeodon.com

G7IZU Radio Reflection Detection @g7izu.bsky.social · 6d

Terrestrial Weather

Storm Amy is incoming and will hit northern Ireland and western Scotland on Friday.

Meanwhile, the jet stream across the Atlantic is running at a maximum of around 350km/h! No record, but for comparison, the average winter jetstream speed is around 213km/h.

#weather
#stormamy

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 6d

Geomagnetic activity has been quite active, with storm levels reaching G3 overnight. Active conditions are expected to continue into tomorrow.

HF radio conditions are mostly poor at the moment.

#spaceweather
#g7izu

G7IZU Radio Reflection Detection @g7izu.bsky.social · 6d

Space Weather

There have been two M1.2 flares during the last 24 hours.

M1.2 @16h48 UT 01 Oct AR4232
M1.2 @02h08 UT 02 Oct AR4226

The flare ay 02h08 UT was accompanied by a Type II radio emission, indicating a potential CME.

Plot of solar XRay flux for the past 24 hours. Two solar flares reaching M1.2 were observed during the period.

Bar graphs from Helmholtz Centre Potsdam showing the HP30 index between midnight and 10h UT 02 Oct. The HP30 index is similar to the kP index, except the HP30 is sampled every 30 minutes instead of every 3 hours.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 7d

Disclaimer: As ever, please consult your official national weather forecaster for up to date and accurate details. This is not an official forecast!

#weather
#humberto
#stormamy
#storm_amy

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 7d

What is left of ex-hurricane Humberto has been named Storm Amy (the first named storm of the season) by the UK Met Office.

Wxcharts.com
10m wind (kts)
Run: 12h UT 01 Oct 2025
Valid: 00h UT 04 Oct 2025

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 8d

Space Weather

Aurora Alert: Mid-latitude aurora is being reported by amateur radio operators down to ~55°N over Europe.

#spaceweather
#aurora
#g7izu

Map showing amateur radio contacts reported as using the aurora.

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 8d

Ireland will take the brunt with winds upto 100mph forecast.

Consult you national weather provider for up to date details of this dangerous storm.

#weather
#humberto

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 8d

Terrestrial Weather

Ex-Hurricane #Humberto will race across the N Atlantic and reach Ireland and UK on Friday, with the deepening extra-tropical low sporting a forecast central pressure of around 950mB or less over Scotland, before dissolving across Germany and Poland early next week.

Hurricanes Humberto and Imelda in the Western Atlantic

Forecast map for NW Europe Fri 03 Oct 2025

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Reposted by G7IZU Radio Reflection Detection

Arnie the DXman @arniedxer.bsky.social · 8d

All stations of Polish Radio are carrying a special concert commemorating 100th anniversary of the public broadcaster.

And by "all"... I really mean that.

Even Polish Radio for Ukraine, normally all-Ukrainian, and Radio Poland - the external service - are carrying it! 😮

podcasty.polskieradio.pl

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 8d

Space Weather

Aurora Alert: Mid-latitude aurora is being reported by amateur radio operators down to ~54°N over Europe.

A moderate G2 geomagnetic storm is in progress.

#spaceweather
#amateurradio
#g7izu

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G7IZU Radio Reflection Detection @g7izu.bsky.social · 8d

Space Weather

There have been two solar flares grater than M0 in the past 24 hours.

M2.6 @09h40 UT 30 Sept
M1.8 @12h26 UT 30 Sept

A geomagnetic storm G1 is in progress.

HF radio conditions are currently "fair" to "poor".

#spaceweather
#g7izu

Plot of solar flux recorded by Goes 19 satellite. Two peaks indicate the solar flares.

Solar disc from Nasa/SDO in filter AIA131. A flare is erupting in the lower right quadrant.

Solar-Terrestrial Data
30 Sep 2025 1230 GHT
SFI: 186 SN: 173
f-Index: 27
K-Index: 5

G7IZU Radio Reflection Detection @g7izu.bsky.social · 8d

s.

#spaceweather
#aurora
#g7izu

G7IZU Radio Reflection Detection @g7izu.bsky.social · 8d

Space Weather

Geomagnetic activity has been on the rise over the last 24 hours. Conditions reached G3 briefly overnight (29/30 Sept) due to the effects of a CME and sustained southward IMF (Bz). A seasonal effect called the Russell-McPherron effect also enhances the southward Bz around the equinoxe

30 minute Hp30 index from Helmholtz Centre, Potsdam

Plots of the solar wind with various parameters as measured by the ACE satellite at the sun-Earth L1 point. Annotation by Dr Tamitha Skov highlights the continuing southward geomagnetic field (Bz) component.

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