Stefan DK7FC is always experimenting at VLF and ULF. Recently he has been radiating a signal at 2.97kHz and he has detected his own signal at 9km. This is not earth mode. He is trying to get reports from much further.
See https://sites.google.com/site/sub9khz/ .
Simple QRP projects, 10m, 8m, 6m, 4m, FT8, 160m, WSPR, LF/MF, sub-9kHz, nanowaves and other random stuff, some not related to amateur radio.
Buy me (a virtual) cup of coffee
This is NOT at all compulsory, but this would help offset some project costs.
Any donations most gratefully received.
https://ko-fi.com/rogerg3xbm
Any donations most gratefully received.
https://ko-fi.com/rogerg3xbm
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Featured post
10m QRPP WSPR (Tuesday)
My 500uW (0.5mW) 10m WSPR beacon has been on all day. UPDATE 1340z: No spots.
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2 comments:
Thanks for your blog Roger.
73 de DK7FC
PS: Meanwhile the 17 km far field distance was crossed, see the emails on the reflector :-)
Stefan - good luck with your experiments. I have amended the 2016 news in the Sub 9kHz Amateur Radio website. See https://sites.google.com/site/sub9khz/vlf-news-2016 . I shall try to add news of your work to my blog and the Sub 9kHz website. You are truly at the "sharp end" of amateur radio - well done.
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