iiinova — where your digital self keeps evolving

London Shortwave @londonshortwave.bsky.social · 24/08/2025

SIM card ejector! Sensitive SDR 😃

London Shortwave @londonshortwave.bsky.social · 23/08/2025

🎙️ 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.

282

Reposted by London Shortwave

prog @airspy.com · 25/01/2025

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...

youtube.com

SDR# r1922 WB NR + NINR

YouTube video by prog

072

Reposted by London Shortwave

prog @airspy.com · 21/01/2025

The #YouTwin, ladies and gentlemen.

1133

London Shortwave @londonshortwave.bsky.social · 25/01/2025

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.

172

Reposted by London Shortwave

DRMNA.info @drmna.bsky.social · 18/01/2025

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...

fcc.gov

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...

082

Reposted by London Shortwave

qrper.bsky.social @qrper.bsky.social · 01/01/2025

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…

qrper.com

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.

092

London Shortwave @londonshortwave.bsky.social · 01/01/2025

About 11 years I would sometimes hear them on 783 kHz. Are they still using that frequency?

110

London Shortwave @londonshortwave.bsky.social · 31/12/2024

New blog post: RNZ Pacific ringing in the New Year blog.londonshortwave.com/2024/12/rnz-... #shortwave #dxing #spectrumcapture

092

Reposted by London Shortwave

London Shortwave @londonshortwave.bsky.social · 31/12/2024

🇳🇿 RNZ Pacific welcoming 2025 and some 20m ham band activity recorded with the above set-up.

063

London Shortwave @londonshortwave.bsky.social · 31/12/2024

🇳🇿 RNZ Pacific welcoming 2025 and some 20m ham band activity recorded with the above set-up.

063

Reposted by London Shortwave

Arnie the DXman @arniedxer.bsky.social · 29/12/2024

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

142

Reposted by London Shortwave

prog @airspy.com · 28/12/2024

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

294

Reposted by London Shortwave

Keith - G0FEA @g0fea.bsky.social · 20/12/2024

Things you find in London.

2478

Reposted by London Shortwave

qrper.bsky.social @qrper.bsky.social · 19/12/2024

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…

qrper.com

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).

062

Reposted by London Shortwave

Tarmo Tanilsoo @es5nhc.ee · 19/12/2024

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

bbc.co.uk

BBC - Global Short Wave Frequencies

How to listen to BBC World Service on short wave radio for the region you're in

0151

Reposted by London Shortwave

pd0swl @pd0swl.bsky.social · 18/12/2024

Wow. The device we've all been waiting for! RF IQ field recording made ultraportable.

091

London Shortwave @londonshortwave.bsky.social · 19/12/2024

Thanks Paul, I’m still refining it, but a blog post on this and a GitHub page are in the works! Hopefully it will be easy to build your own 😃

120

Reposted by London Shortwave

Ondra OK1CDJ/OL0M🇨🇿/SV0SYH/J42T🇬🇷 @ok1cdj.bsky.social · 09/12/2024

Perfect #opensource solution from programming HT including sound card for #aprs #packetradio #varafm #winlink github.com/skuep/AIOC

1103

London Shortwave @londonshortwave.bsky.social · 15/12/2024

It’s a huge file but here’s a video of SDR# playing it back: www.youtube.com/watch?v=PqY2...

youtube.com

KBS World Radio received in London, UK

YouTube video by London Shortwave

020

London Shortwave @londonshortwave.bsky.social · 14/12/2024

Amazing, looking forward to hearing about your lesson tomorrow!

110

London Shortwave @londonshortwave.bsky.social · 14/12/2024

🇰🇷 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...

youtube.com

KBS World Radio received in London, UK

YouTube video by London Shortwave

2103

London Shortwave @londonshortwave.bsky.social · 14/12/2024

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 📡

181

London Shortwave @londonshortwave.bsky.social · 14/12/2024

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! 😮

031

Reposted by London Shortwave

Robin Davies @rdavies6.bsky.social · 13/12/2024

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!

061

London Shortwave @londonshortwave.bsky.social · 12/12/2024

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 📡

0111

Reposted by London Shortwave

TheOperator @hb9vqq.bsky.social · 08/12/2024

I have to admit that there is very little room for improvement, the #Airspy HF+ Discovery is an excellent #SDR out-of-the-box. #HF conditioning trials so far have not shown any significant improvement in #hamradio reception. I'll keep trying anyway #swl

0163

London Shortwave @londonshortwave.bsky.social · 09/12/2024

Yes! It’s also in my vCard, encoded as a QR code and printed onto the back of the card.

020

Reposted by London Shortwave

Robin Davies @rdavies6.bsky.social · 07/12/2024

George @m1geo.com Wellgood loop amplifier has been a hot topic over the last few days with plenty of interest in constructing an active loop antenna with one. Anecdotal and empirical measurements (esp from hb9vqq) have shown it to be an excellent performing antenna

181

London Shortwave @londonshortwave.bsky.social · 07/12/2024

🇮🇳 I miss having All India Radio's English language service in abundance on shortwave! This is a recording from 17/08/2015 at 1900z on 11670 kHz, received indoors using a FunCube Pro+ dongle and a Wellbrook ALA1530SP loop antenna.

030

London Shortwave @londonshortwave.bsky.social · 07/12/2024

Bluesky Roast 😂😅 Shortwave Shakespeare: An Enthusiast’s Frequency Of Witty Waves Tune in for the delightful broadcasts of London's very own shortwave sage! Vibe Check "A charming mix of nerdy passion and down-to-earth commentary, wrapped in radio waves." blueskyroast.com/roast/london...

030

London Shortwave @londonshortwave.bsky.social · 07/12/2024

🇨🇺🇨🇺🇨🇺🇨🇺 (11760 kHz - 02/07/2015 2323z)

140

London Shortwave @londonshortwave.bsky.social · 06/12/2024

🇨🇺 I've been digging through my old archives and my very first spectrum recordings. Here's Radio Habana Cuba's broadcast on Fidel Castro's 89th birthday (11670kHz - 06/08/2015 0101z). I captured this indoors with a Wellbrook ALA1530-SP antenna and FunCube Dongle Pro+. #Shortwave #SDR #SpectrumCapture

081

London Shortwave @londonshortwave.bsky.social · 06/12/2024

Just realised this as you posted this, re-uploading as there's no edit function.

110

London Shortwave @londonshortwave.bsky.social · 05/12/2024

🇧🇷 Rádio Nacional da Amazônia on 04/12/24 at 2200z on 11780 kHz. Captured with the battery-powered Pi Zero 2W, AirSpy HF+ and 2x6m dipole in a local park. #PortableSDR #SpectrumCapture #Shortwave #HF #DX #AirSpy #PiZero2W #PiZero

051

Reposted by London Shortwave

Arnie the DXman @arniedxer.bsky.social · 04/12/2024

Rechecking this broadcast today following a sudden turmoil in #Korea yesterday. It's back to talk, although I can't make out the topic as I don't speak Korean😆 But I assume it must be about #MartialLaw. Not // KBS 1 TV, which still rolls the news, and pres. not // KBS 1 Radio. #shortwave #SouthKorea

042

Reposted by London Shortwave

Alex KR1ST/PA1ST @kr1st.bsky.social · 02/12/2024

This is a recording I just made of the #ISS school contact with Woodland Middle School in South Carolina today: youtu.be/J_K_woB1aaQ The excellent questions the students asked are in the description of the video. #ARISS #hamradio #AmateurRadio

youtu.be

Woodland Middle School ISS Contact 12-02-2024

YouTube video by The Ham Lab

1133

London Shortwave @londonshortwave.bsky.social · 01/12/2024

2/2 In the next version I will add a settings page where you'll be able to change the capture bandwidth, switch wifi on and off (to conserve more power) and to shut the recorder down gracefully. 👨‍💻

130

London Shortwave @londonshortwave.bsky.social · 01/12/2024

1/2 After a few charge and discharge cycles, the 4xAA Eneloops support the built-in battery for longer: the recorder kept going for 4 hours and 10 minutes. That's long enough for most of my park outings! Here's the resulting capture from last night. The system is good to go! 🚀

171

London Shortwave @londonshortwave.bsky.social · 01/12/2024

2/2 setting the centre frequency and starting the recording:

020

London Shortwave @londonshortwave.bsky.social · 01/12/2024

1/2 Just playing around with recording some medium wave spectrum off my YouLoop installation on the balcony. Testing power-on and boot-up:

120

London Shortwave @londonshortwave.bsky.social · 30/11/2024

Final version of the UI (for now). Battery indicator, remaining recording time available & the duration of the current recording (in hh:mm). The Pi boots into this UI and triggers airspyhf_rx to record with the selected parameters if a HF+ is connected. The screen has minimal 🔋 impact when sleeping.

1102

London Shortwave @londonshortwave.bsky.social · 30/11/2024

Experimenting with a new physical interface for the spectrum recorder. Added an option to switch off the backlight to save battery (& when I send the UI to “sleep” this way, I also change the controller polling interval from 0.1s to 1s to reduce Python’s CPU usage). These things matter on Pi Zero 2W

0102