Showing posts with label sferics. Show all posts
Showing posts with label sferics. Show all posts

8 Jul 2025

VLF Sferics RX

 Listening to the natural emissions at VLF can be fascinating.  Not much is needed as this video shows. Of course, if the recorder does not provide DC power, you will need a source. In this case DC is provided by the recorder, so only 3 parts are needed.

I think this audio recorder is available on Amazon. On the DXexplorer site is another sferics receiver to drive headphones.



4 Mar 2010

UK on-line VLF Receiver

There is an on-line VLF receiver on which you can hear natural emissions such as sferics, tweeks and whistlers located at Todmorden in the north of England. As well as a real-time audio stream, it has an interesting way of plotting received signals so you can see the direction of arrival of sferics.

26 Feb 2010

First sub-9kHz NoV application with OFCOM

G7NKS has already submitted his application for an NoV to operate below 9kHz. Mine will be prepared in the next few days. Approval (or rejection) may take some time as OFCOM has to consult with the Met Office first. The Met Office monitors <9kHz for sferic activity to track storms and lightning.