Jim G7FRI
@g7fri.bsky.social
Here for Amateur Radio, Weather, Retro Everything, Future Energy
Reposted by Jim G7FRI
Rainfall totals building up across England and Wales - 61mm at Tafalog since about 1800 yesterday the top number so far.
www.roostweather.com/ukobs/custom...
www.roostweather.com/ukobs/custom...
November 14, 2025 at 2:35 PM
Rainfall totals building up across England and Wales - 61mm at Tafalog since about 1800 yesterday the top number so far.
www.roostweather.com/ukobs/custom...
www.roostweather.com/ukobs/custom...
I rescued this book from a skip outside the library while at University…
November 7, 2025 at 9:33 AM
I rescued this book from a skip outside the library while at University…
Reposted by Jim G7FRI
Bit of a NW'ward shift in the models overnight, in respect of the very deep depression being signalled by all models now.
You can check out my model trend viewer here - www.roostweather.com/models/model...
You can check out my model trend viewer here - www.roostweather.com/models/model...
October 1, 2025 at 8:10 AM
Bit of a NW'ward shift in the models overnight, in respect of the very deep depression being signalled by all models now.
You can check out my model trend viewer here - www.roostweather.com/models/model...
You can check out my model trend viewer here - www.roostweather.com/models/model...
Reposted by Jim G7FRI
We are delighted to announce the debut of the IC-7300MK2 HF/50/70 MHz Transceiver at this weekend's Tokyo Hamfair. For more details click here: icomuk.co.uk/Icom-Unveils...
#Icom #IC7300MK2 #Hamradio #Hamr #AmateurRadio
#Icom #IC7300MK2 #Hamradio #Hamr #AmateurRadio
August 23, 2025 at 1:29 AM
We are delighted to announce the debut of the IC-7300MK2 HF/50/70 MHz Transceiver at this weekend's Tokyo Hamfair. For more details click here: icomuk.co.uk/Icom-Unveils...
#Icom #IC7300MK2 #Hamradio #Hamr #AmateurRadio
#Icom #IC7300MK2 #Hamradio #Hamr #AmateurRadio
There seems to be a date bug which affects some GPS chipsets (started 17th Aug). If your GPS is showing dates around Jan ‘06 then it’s likely the same issue. See QRP Labs forum post here:
groups.io/g/QRPLabs/to...
Another example of the issue:
wahoox.forum.wahoofitness.com/t/wahoo-elem...
groups.io/g/QRPLabs/to...
Another example of the issue:
wahoox.forum.wahoofitness.com/t/wahoo-elem...
August 19, 2025 at 8:05 PM
There seems to be a date bug which affects some GPS chipsets (started 17th Aug). If your GPS is showing dates around Jan ‘06 then it’s likely the same issue. See QRP Labs forum post here:
groups.io/g/QRPLabs/to...
Another example of the issue:
wahoox.forum.wahoofitness.com/t/wahoo-elem...
groups.io/g/QRPLabs/to...
Another example of the issue:
wahoox.forum.wahoofitness.com/t/wahoo-elem...
Reposted by Jim G7FRI
From #Canada to #Europe! The huge plume from the Canadian #wildfires has reached #France, the #UK and Northern European Countries, as shown in the #Copernicus #Sentinel5p CO map on Aug. the 5th. #AirQuality
August 6, 2025 at 10:45 AM
From #Canada to #Europe! The huge plume from the Canadian #wildfires has reached #France, the #UK and Northern European Countries, as shown in the #Copernicus #Sentinel5p CO map on Aug. the 5th. #AirQuality
Reposted by Jim G7FRI
Happy Birthday 6502
Happy Birthday 6502
Hackaday Article
hackaday.com
August 4, 2025 at 2:05 PM
Happy Birthday 6502
I asked AI to create an image of a “Jocky Wilson Trophy” for reasons which are complicated… the result is superb! Presume AI knew it was for a joke so put the darts the wrong way round for comedic effect 🤔
August 2, 2025 at 3:29 PM
I asked AI to create an image of a “Jocky Wilson Trophy” for reasons which are complicated… the result is superb! Presume AI knew it was for a joke so put the darts the wrong way round for comedic effect 🤔
Thank you for a very inspiring and positive day at the #EnergyTechSummit So much thought provoking conversation and proof that we can change things for the better. And the best bar ever! 🥂 😂 @octopus.energy @gjuk.bsky.social
June 23, 2025 at 8:19 PM
Thank you for a very inspiring and positive day at the #EnergyTechSummit So much thought provoking conversation and proof that we can change things for the better. And the best bar ever! 🥂 😂 @octopus.energy @gjuk.bsky.social
I wonder who bought this personalised plate… got to be a retro computer fan surely?!
April 21, 2025 at 6:15 PM
I wonder who bought this personalised plate… got to be a retro computer fan surely?!
Very nice… now I just need to win the lottery!
Are you thinking of treating yourself to a new piece of equipment, or just interested to know how the latest Icom transceiver performs?
The IC-7760 Technical Report (Volume 1) is now available, click here for more details: icomuk.co.uk/IC-7760_Tech...
#ICOM #amateurradio #HamRadio
The IC-7760 Technical Report (Volume 1) is now available, click here for more details: icomuk.co.uk/IC-7760_Tech...
#ICOM #amateurradio #HamRadio
April 3, 2025 at 11:24 AM
Very nice… now I just need to win the lottery!
Magnolia in neighbour’s garden…
March 31, 2025 at 2:56 PM
Magnolia in neighbour’s garden…
Reposted by Jim G7FRI
Writing a GPS Receiver from Scratch
Writing a GPS Receiver from Scratch
Hackaday Article
hackaday.com
March 18, 2025 at 11:04 AM
Writing a GPS Receiver from Scratch
I hope this new law is worded carefully and properly thought through as any transmitter is potentially a “signal jammer”… 🤔
news.sky.com/story/signal...
news.sky.com/story/signal...
Five-year prison sentences for possession of keyless car theft signal jammers under new law
The gadgets are often used by organised crime gangs to steal luxury vehicles.
news.sky.com
February 23, 2025 at 10:54 PM
I hope this new law is worded carefully and properly thought through as any transmitter is potentially a “signal jammer”… 🤔
news.sky.com/story/signal...
news.sky.com/story/signal...
Reposted by Jim G7FRI
Falcon 9 upper rocket stage seen from Herne Bay early this morning.
February 19, 2025 at 9:01 AM
Falcon 9 upper rocket stage seen from Herne Bay early this morning.
Reposted by Jim G7FRI
New blogpost:
"The reentry of a Falcon 9 upper stage over NW Europe on 19 February"
sattrackcam.blogspot.com/2025/02/the-...
"The reentry of a Falcon 9 upper stage over NW Europe on 19 February"
sattrackcam.blogspot.com/2025/02/the-...
The reentry of a Falcon 9 upper stage over NW Europe on 19 February
classified military Space (spy satellites) and Missiles
sattrackcam.blogspot.com
February 19, 2025 at 6:30 PM
New blogpost:
"The reentry of a Falcon 9 upper stage over NW Europe on 19 February"
sattrackcam.blogspot.com/2025/02/the-...
"The reentry of a Falcon 9 upper stage over NW Europe on 19 February"
sattrackcam.blogspot.com/2025/02/the-...
Reposted by Jim G7FRI
Bouncing Signals off of Satellites Other than the Moon
https://hackaday.com/2025/01/24/bouncing-signals-off-of-satellites-other-than-the-moon/
https://hackaday.com/2025/01/24/bouncing-signals-off-of-satellites-other-than-the-moon/
Bouncing Signals off of Satellites Other than the Moon
Hackaday Article
hackaday.com
January 25, 2025 at 3:01 AM
Bouncing Signals off of Satellites Other than the Moon
https://hackaday.com/2025/01/24/bouncing-signals-off-of-satellites-other-than-the-moon/
https://hackaday.com/2025/01/24/bouncing-signals-off-of-satellites-other-than-the-moon/
Went down a YouTube/Wiki rabbit hole on the subject of atomic clocks and frequency standards after watching this video. Amazes me how this was all worked out so long ago by some very clever people. We take so much for granted today.
youtu.be/eOti3kKWX-c?...
youtu.be/eOti3kKWX-c?...
How an Atomic Clock Really Works: Inside the HP 5061A Cesium Clock
YouTube video by CuriousMarc
youtu.be
January 23, 2025 at 1:14 PM
Went down a YouTube/Wiki rabbit hole on the subject of atomic clocks and frequency standards after watching this video. Amazes me how this was all worked out so long ago by some very clever people. We take so much for granted today.
youtu.be/eOti3kKWX-c?...
youtu.be/eOti3kKWX-c?...
Nice video looking at history of Ethernet standards. I remember mid-90s working with legacy “thick net”, “thin net”, UTP Ethernet with hubs (collisions and broadcast storms!), & token ring (FDDI). And a CTO who later bought into ATM to the desktop! What a mess…
youtu.be/f8PP5IHsL8Y?...
youtu.be/f8PP5IHsL8Y?...
TWISTED: The dramatic history of twisted-pair Ethernet
YouTube video by The Serial Port
youtu.be
January 9, 2025 at 9:39 AM
Nice video looking at history of Ethernet standards. I remember mid-90s working with legacy “thick net”, “thin net”, UTP Ethernet with hubs (collisions and broadcast storms!), & token ring (FDDI). And a CTO who later bought into ATM to the desktop! What a mess…
youtu.be/f8PP5IHsL8Y?...
youtu.be/f8PP5IHsL8Y?...
Reposted by Jim G7FRI
This is video celebrating 100 years of the Grimeton radio transmitter. Amazing technology and just fantastic that it still works. www.youtube.com/live/VwINhKc...
YouTube
Share your videos with friends, family, and the world
www.youtube.com
December 4, 2024 at 5:09 AM
This is video celebrating 100 years of the Grimeton radio transmitter. Amazing technology and just fantastic that it still works. www.youtube.com/live/VwINhKc...
Reposted by Jim G7FRI
PlayStation at 30: the console that made video games cool
PlayStation at 30: the console that made video games cool
Launched in Japan in December 1994, the record-breaking PlayStation started out as a CD add-on for the Super Nintendo – but ended up ushering video games into a new era all on its own
If you were an obsessive video game fan in the summer of 1994, you’ll…
www.theguardian.com
December 3, 2024 at 10:16 AM
PlayStation at 30: the console that made video games cool
This may be of interest to the radio community in the UK: Radio4 LW 198kHz switch off date isn’t official from what I can find, but this information from OFGEM says that the “radio teleswitch” (RTS) service is due to end 30th June 2025 which depends on the 198kHz signal.
November 19, 2024 at 9:58 AM
This may be of interest to the radio community in the UK: Radio4 LW 198kHz switch off date isn’t official from what I can find, but this information from OFGEM says that the “radio teleswitch” (RTS) service is due to end 30th June 2025 which depends on the 198kHz signal.