5 Mar 2011

VLF Dreamer's Band video

For those interested, I've made a short video showing my current VLF receiving set-up for 8.7-9.1kHz (antenna, matching, preamp, PC) used in the recent VLF reception tests in which G3XIZ has been copied twice now (45km), DJ8WX all of yesterday (645km) and DK7FC/P twice (629km). I am not claiming it to be fully optimised, but it certainly works.

What I like is that the wire antenna and the preamp cost a few pounds, the software is free (thanks Wolf) and the results mind blowing. In the near future I will try replacing the loop and preamp with a small E-field probe.

This is the link http://www.youtube.com/watch?v=UxEAhqPFBFE

Also, G3XIZ was copied again on 9.0909kHz VLF at 45km. He was also copied by a few other UK stations including G3ZJO and M0BMU.


Anonymous said...

Thanks for taking the time to make this video, very interesting.
I wonder if you could place the Spectrum-Lab .USR file that you use for the 8-9KHz tests on your web page.
I am having trouble getting the settings right. (It's a fantastic program but a little complicated to setup).
I greatly enjoy your blog. Thanks Dave (SWL)

Roger G3XBM said...

Dave, if you visit this link you will find the Spectrum Lab file I've used most recently http://dl.dropbox.com/u/15047843/g3xbm_423uHz_060311.USR.
I agree that this is a very powerful piece of software and I'm hardly an expert! In the UK GBZ is a good signal to lock to.

Anonymous said...

Great...Got it. Thanks Roger