🎙️ 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.
| Website | https://londonshortwave.com |
London Shortwave
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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
Had a great time capturing the 31 meter band for 3 hours this afternoon using my Pi Zero 2W portable recording contraption and AirSpy 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📡
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 📡#PortableSDR #SDR #HF #Shortwave #SpectrumCapture #SpectrumRecording #AirSpy
🇮🇳 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. #Shortwave #SDR #SpectrumCapture #AllIndiaRadio #RadioArchives
🇨🇺 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
🇧🇷 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
4/4 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! 🚀
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. 👨💻
3/4 setting the centre frequency and starting the recording:
2/4 Just playing around with recording some medium wave spectrum off my YouLoop installation on the balcony. Testing power-on and boot-up:
1/4 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.
#SDR #HF #Shortwave #SpectrumRecording #PortableSDR #Mediumwave
