London Shortwave
@londonshortwave.bsky.social
Shortwave Radio Enthusiast based in London, UK. AirSpy+SpyVerter, FCDPro+, Lowe HF/PR-150, Tecsun PL680, DX Engineering NCC1, two Wellbrooks 1530S+, EN/RU/ES. Blog at londonshortwave.com
Pinned
The PiZero 2W spectrum recorder runs for 7 hours on two 18650s & a step-down 5V converter (which doesn’t seem to add measurable noise on HF). And of course the batteries are hot-swappable as the unit has its own small UPS battery. The only limitation is the amount of free space on the MicroSD card 📡
🎙️ One-two, one-two, is this thing on? It’s been a minute! Late to the party but here’s uConsole CM4 running CubicSDR with #AirSpy HF+ Discovery.
August 23, 2025 at 12:31 AM
🎙️ One-two, one-two, is this thing on? It’s been a minute! Late to the party but here’s uConsole CM4 running CubicSDR with #AirSpy HF+ Discovery.
Reposted by London Shortwave
Planning an Activation Rove? Michael recommends Ham-Map.com
Many thanks to Michael (OK7SE) who writes: Hello Thomas. Michal (OK1SIM) has put together an online map that might be useful for activation planning. You might want to check it out: I usually activate "what's available," so I like that I…
Many thanks to Michael (OK7SE) who writes: Hello Thomas. Michal (OK1SIM) has put together an online map that might be useful for activation planning. You might want to check it out: I usually activate "what's available," so I like that I…
Planning an Activation Rove? Michael recommends Ham-Map.com
Many thanks to Michael (OK7SE) who writes: Hello Thomas. Michal (OK1SIM) has put together an online map that might be useful for activation planning. You might want to check it out: I usually activate "what's available," so I like that I can generate a map that aggregates SOTA, POTA, GMA, and WWFF for a target place (e.g., when I go to Austria for a trip) so I can see what's nearby my accommodation, etc.
qrper.com
February 5, 2025 at 11:37 AM
Planning an Activation Rove? Michael recommends Ham-Map.com
Many thanks to Michael (OK7SE) who writes: Hello Thomas. Michal (OK1SIM) has put together an online map that might be useful for activation planning. You might want to check it out: I usually activate "what's available," so I like that I…
Many thanks to Michael (OK7SE) who writes: Hello Thomas. Michal (OK1SIM) has put together an online map that might be useful for activation planning. You might want to check it out: I usually activate "what's available," so I like that I…
Reposted by London Shortwave
I found some pulsed noise this morning and I thought this would be a good demo of SDR#'s Wide Band Noise Blanker (WB NB) and Natural Intelligence Noise Reduction (NINR.) Here's a quick video of the different combinations. Used an Airspy HF+ and a YouTwin Loop.
www.youtube.com/watch?v=5HdU...
www.youtube.com/watch?v=5HdU...
SDR# r1922 WB NR + NINR
YouTube video by prog
www.youtube.com
January 25, 2025 at 11:16 AM
I found some pulsed noise this morning and I thought this would be a good demo of SDR#'s Wide Band Noise Blanker (WB NB) and Natural Intelligence Noise Reduction (NINR.) Here's a quick video of the different combinations. Used an Airspy HF+ and a YouTwin Loop.
www.youtube.com/watch?v=5HdU...
www.youtube.com/watch?v=5HdU...
Thinking of putting up my Twitter archive online somewhere, now that I've officially closed that account. Unfortunately the archive is missing replies from other users and all the other interactions but it's a vault with many good memories of doing radio in the field.
January 25, 2025 at 7:17 PM
Thinking of putting up my Twitter archive online somewhere, now that I've officially closed that account. Unfortunately the archive is missing replies from other users and all the other interactions but it's a vault with many good memories of doing radio in the field.
Reposted by London Shortwave
January 17, 2025 at 11:49 PM
Reposted by London Shortwave
For those following the HFT "High Frequency Trading" on HFBC/Shortwave frequencies debate, I have news! The FCC has sided with legitimate users of the frequencies (eg. SW Broadcasters) this time! A win for #SWL
docs.fcc.gov/public/attac...
docs.fcc.gov/public/attac...
docs.fcc.gov/public/attac...
docs.fcc.gov/public/attac...
docs.fcc.gov/public/attac...
docs.fcc.gov/public/attac...
Order on DPA Mac LLC International Broadcast Station Application
OIA GSN Division grants in part with conditions and dismisses in part DPA Mac, LLC's Application for authority to construct an International High Frequency Broadcasting Station in Maple Park, Illinois...
www.fcc.gov
January 18, 2025 at 12:23 AM
For those following the HFT "High Frequency Trading" on HFBC/Shortwave frequencies debate, I have news! The FCC has sided with legitimate users of the frequencies (eg. SW Broadcasters) this time! A win for #SWL
docs.fcc.gov/public/attac...
docs.fcc.gov/public/attac...
docs.fcc.gov/public/attac...
docs.fcc.gov/public/attac...
docs.fcc.gov/public/attac...
docs.fcc.gov/public/attac...
Reposted by London Shortwave
The QRPer Board: Your QRP Community Hub
In 2022, we created The QRPer Board, a discussion forum hosted at QRPer.net, where QRPers can ask questions, share insights, and explore amateur radio topics in depth. Why use the QRPer Board? The discussion board is the quickest way to get answers to your…
In 2022, we created The QRPer Board, a discussion forum hosted at QRPer.net, where QRPers can ask questions, share insights, and explore amateur radio topics in depth. Why use the QRPer Board? The discussion board is the quickest way to get answers to your…
The QRPer Board: Your QRP Community Hub
In 2022, we created The QRPer Board, a discussion forum hosted at QRPer.net, where QRPers can ask questions, share insights, and explore amateur radio topics in depth. Why use the QRPer Board? The discussion board is the quickest way to get answers to your questions—much faster than sending an email to K4SWL--! Our growing community of active QRPers and field operators provides a wealth of knowledge and guidance.
qrper.com
January 4, 2025 at 11:37 AM
The QRPer Board: Your QRP Community Hub
In 2022, we created The QRPer Board, a discussion forum hosted at QRPer.net, where QRPers can ask questions, share insights, and explore amateur radio topics in depth. Why use the QRPer Board? The discussion board is the quickest way to get answers to your…
In 2022, we created The QRPer Board, a discussion forum hosted at QRPer.net, where QRPers can ask questions, share insights, and explore amateur radio topics in depth. Why use the QRPer Board? The discussion board is the quickest way to get answers to your…
Reposted by London Shortwave
Happy New Year! A Fresh Start and Update on 2024 Correspondence
Good Morning! It's January 1st, 2025, and I'd like to wish you a very Happy New Year! I mentioned on Patreon yesterday that, in a sense, I’m happy to see 2024 in the rear-view mirror. Frankly, it was a tough year for our family in…
Good Morning! It's January 1st, 2025, and I'd like to wish you a very Happy New Year! I mentioned on Patreon yesterday that, in a sense, I’m happy to see 2024 in the rear-view mirror. Frankly, it was a tough year for our family in…
Happy New Year! A Fresh Start and Update on 2024 Correspondence
Good Morning! It's January 1st, 2025, and I'd like to wish you a very Happy New Year! I mentioned on Patreon yesterday that, in a sense, I’m happy to see 2024 in the rear-view mirror. Frankly, it was a tough year for our family in many ways, but even amidst the challenges, there were moments of celebration and joy.
qrper.com
January 1, 2025 at 12:57 PM
Happy New Year! A Fresh Start and Update on 2024 Correspondence
Good Morning! It's January 1st, 2025, and I'd like to wish you a very Happy New Year! I mentioned on Patreon yesterday that, in a sense, I’m happy to see 2024 in the rear-view mirror. Frankly, it was a tough year for our family in…
Good Morning! It's January 1st, 2025, and I'd like to wish you a very Happy New Year! I mentioned on Patreon yesterday that, in a sense, I’m happy to see 2024 in the rear-view mirror. Frankly, it was a tough year for our family in…
New blog post: RNZ Pacific ringing in the New Year
blog.londonshortwave.com/2024/12/rnz-...
#shortwave #dxing #spectrumcapture
blog.londonshortwave.com/2024/12/rnz-...
#shortwave #dxing #spectrumcapture
December 31, 2024 at 6:52 PM
New blog post: RNZ Pacific ringing in the New Year
blog.londonshortwave.com/2024/12/rnz-...
#shortwave #dxing #spectrumcapture
blog.londonshortwave.com/2024/12/rnz-...
#shortwave #dxing #spectrumcapture
Reposted by London Shortwave
🇳🇿 RNZ Pacific welcoming 2025 and some 20m ham band activity recorded with the above set-up.
December 31, 2024 at 2:09 PM
🇳🇿 RNZ Pacific welcoming 2025 and some 20m ham band activity recorded with the above set-up.
December 31, 2024 at 11:14 AM
🇳🇿 Ringing in the New Year with RNZ Pacific @rnz.co.nz.web.brid.gy
December 31, 2024 at 11:11 AM
🇳🇿 Ringing in the New Year with RNZ Pacific @rnz.co.nz.web.brid.gy
Reposted by London Shortwave
6070kHz: Radio DARC farewell to #Moosbrunn. A number of people contributing their memories. One guy - DX tips presenter @ HCJB Germany directly blames AWR mass withdrawal from this & other big transmitters for MOS' demise. Followed by low-key sad version of Blue Danube 💀 #shortwave #DeathOfAMRadio
December 29, 2024 at 10:28 AM
6070kHz: Radio DARC farewell to #Moosbrunn. A number of people contributing their memories. One guy - DX tips presenter @ HCJB Germany directly blames AWR mass withdrawal from this & other big transmitters for MOS' demise. Followed by low-key sad version of Blue Danube 💀 #shortwave #DeathOfAMRadio
Reposted by London Shortwave
Check the latest Release Candidate of SDR# r1921 with tons of improvements ranging from the core DSP to "Quality of Life" tweaks.
Get it here: airspy.com/download
#airspy #sdrsharp
Get it here: airspy.com/download
#airspy #sdrsharp
December 28, 2024 at 11:06 AM
Check the latest Release Candidate of SDR# r1921 with tons of improvements ranging from the core DSP to "Quality of Life" tweaks.
Get it here: airspy.com/download
#airspy #sdrsharp
Get it here: airspy.com/download
#airspy #sdrsharp
Reposted by London Shortwave
Things you find in London.
December 20, 2024 at 5:54 PM
Things you find in London.
Reposted by London Shortwave
Saltwater Activation: Always Wanted to Try This…
I finally got to try something I’ve always dreamed of: proper QRP saltwater ground-planing! This week, we’ve been in Beaufort, North Carolina—a charming coastal town that I can’t recommend enough. As I mentioned in a post last week, I brought along…
I finally got to try something I’ve always dreamed of: proper QRP saltwater ground-planing! This week, we’ve been in Beaufort, North Carolina—a charming coastal town that I can’t recommend enough. As I mentioned in a post last week, I brought along…
Saltwater Activation: Always Wanted to Try This…
I finally got to try something I’ve always dreamed of: proper QRP saltwater ground-planing! This week, we’ve been in Beaufort, North Carolina—a charming coastal town that I can’t recommend enough. As I mentioned in a post last week, I brought along my Elecraft KX2 and KH1 for the trip. On Tuesday, we hopped on a small boat/ferry to Cape Lookout National Seashore (US-0683).
qrper.com
December 19, 2024 at 11:19 AM
Saltwater Activation: Always Wanted to Try This…
I finally got to try something I’ve always dreamed of: proper QRP saltwater ground-planing! This week, we’ve been in Beaufort, North Carolina—a charming coastal town that I can’t recommend enough. As I mentioned in a post last week, I brought along…
I finally got to try something I’ve always dreamed of: proper QRP saltwater ground-planing! This week, we’ve been in Beaufort, North Carolina—a charming coastal town that I can’t recommend enough. As I mentioned in a post last week, I brought along…
Reposted by London Shortwave
For the US friends. While the BBC does not target North America on shortwave, it is not ruled out you might get overspill reception from a transmitter for somewhere else:
www.bbc.co.uk/programmes/a...
I for example receive NHK in Japanese although no shortwave transmitter explicitly targets Europe
www.bbc.co.uk/programmes/a...
I for example receive NHK in Japanese although no shortwave transmitter explicitly targets Europe
BBC - Global Short Wave Frequencies
How to listen to BBC World Service on short wave radio for the region you're in
www.bbc.co.uk
December 19, 2024 at 1:25 PM
For the US friends. While the BBC does not target North America on shortwave, it is not ruled out you might get overspill reception from a transmitter for somewhere else:
www.bbc.co.uk/programmes/a...
I for example receive NHK in Japanese although no shortwave transmitter explicitly targets Europe
www.bbc.co.uk/programmes/a...
I for example receive NHK in Japanese although no shortwave transmitter explicitly targets Europe
Reposted by London Shortwave
Wow. The device we've all been waiting for! RF IQ field recording made ultraportable.
The PiZero 2W spectrum recorder runs for 7 hours on two 18650s & a step-down 5V converter (which doesn’t seem to add measurable noise on HF). And of course the batteries are hot-swappable as the unit has its own small UPS battery. The only limitation is the amount of free space on the MicroSD card 📡
December 18, 2024 at 5:37 PM
Wow. The device we've all been waiting for! RF IQ field recording made ultraportable.
Reposted by London Shortwave
Perfect #opensource solution from programming HT including sound card for #aprs #packetradio #varafm #winlink github.com/skuep/AIOC
December 9, 2024 at 9:57 PM
Perfect #opensource solution from programming HT including sound card for #aprs #packetradio #varafm #winlink github.com/skuep/AIOC
🇰🇷 News bulletin in Korean reporting on MPs voting to impeach President Yoon Suk Yeol. Recorded outdoors on 9740kHz in London, UK on 13/12/24 at 1600 UTC with the Pi Zero 2W recorder, AirSpy HF+ Discovery and Wellbrook UMB130 balun / 2x6m dipole @rdavies6.bsky.social
www.youtube.com/watch?v=PqY2...
www.youtube.com/watch?v=PqY2...
December 14, 2024 at 9:37 PM
🇰🇷 News bulletin in Korean reporting on MPs voting to impeach President Yoon Suk Yeol. Recorded outdoors on 9740kHz in London, UK on 13/12/24 at 1600 UTC with the Pi Zero 2W recorder, AirSpy HF+ Discovery and Wellbrook UMB130 balun / 2x6m dipole @rdavies6.bsky.social
www.youtube.com/watch?v=PqY2...
www.youtube.com/watch?v=PqY2...
Had a great time capturing the 31 meter band for 3 hours this afternoon using my Pi Zero 2W portable recording contraption and @airspy.com HF+ Discovery with the new firmware. Flawless baseband AGC despite a very hot antenna (2x6m dipole) AND the HF preamp being on. #PortableSDR #SDR #Shortwave 📡
December 14, 2024 at 9:33 PM
Had a great time capturing the 31 meter band for 3 hours this afternoon using my Pi Zero 2W portable recording contraption and @airspy.com HF+ Discovery with the new firmware. Flawless baseband AGC despite a very hot antenna (2x6m dipole) AND the HF preamp being on. #PortableSDR #SDR #Shortwave 📡
Very timely post. Being a complete 3D printing noob, I was about to start experimenting with designing and printing an enclosure for my portable spectrum capture unit. I’d no idea that some filaments are hazardous! 😮
I was considering using some @bambulabglobal.bsky.social PLA-CF filament for some prints. But I just watched youtu.be/RLt9l6YxvHk & now I am really not sure I want carbon fibre shards floating around & transferring in to my skin! I wonder if Bambu Labs can offer some guidance and advice?
The Dark Side of Carbon Fiber Filament
YouTube video by Nathan Builds Robots
youtu.be
December 14, 2024 at 1:10 AM
Very timely post. Being a complete 3D printing noob, I was about to start experimenting with designing and printing an enclosure for my portable spectrum capture unit. I’d no idea that some filaments are hazardous! 😮
Reposted by London Shortwave
I really just get my Airspy HF+ updated to the latest firmware. I’m too many versions behind and there are too many improvements not to do this now!
December 13, 2024 at 6:19 PM
I really just get my Airspy HF+ updated to the latest firmware. I’m too many versions behind and there are too many improvements not to do this now!
The PiZero 2W spectrum recorder runs for 7 hours on two 18650s & a step-down 5V converter (which doesn’t seem to add measurable noise on HF). And of course the batteries are hot-swappable as the unit has its own small UPS battery. The only limitation is the amount of free space on the MicroSD card 📡
December 12, 2024 at 12:10 AM
The PiZero 2W spectrum recorder runs for 7 hours on two 18650s & a step-down 5V converter (which doesn’t seem to add measurable noise on HF). And of course the batteries are hot-swappable as the unit has its own small UPS battery. The only limitation is the amount of free space on the MicroSD card 📡