SAQ transmits CW on 17.2 kHz from Sweden a few times a year using a 1924
Alexanderson Alternator and an enormous antenna system. I can't hear
them here in California on anything I own, but I hear them through a Web
SDR at the University of Twente in The Netherlands, about 400 miles from
SAQ.
I've also used Web SDRs in the USA to listen to some NDBs
(non-directional beacons). There aren't as many as there used to be,
but there are still a few dozen as Skip noted.
Not all Web SDRs cover LF and VLF, but some do and a little exploration
might help you figure out whether you want to obtain a receiver for
those bands and deal with the antenna needs.
73,
Maynard
W6PAP
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On 11/25/23 15:50, don Root wrote:
I have found some here using a Sony ICF-2010 portable, one is not far
from the airport.
These days the main problem is getting away from the noise carried on
the power lines ?and on your house wires from switching power supplies etc
If you want to get real low try an RBL-3 from ww2
*From:*[email protected]
[mailto:[email protected]] *On Behalf Of *Waldo Magnuson via
groups.io
*Sent:* Saturday, November 25, 2023 6:26 PM
¡¡¡¡¡¡¡.
? There are many LF non-directional beacons (hundreds in Europe, dozens
in the US and Canada) in the band from 200 KHz to 550 KHz. ?There is a
forum that has a contest the last weekend of each month logging NDBs.
?Distances range from close (10 miles) to 2 or 3 thousand miles away.
?I use an iCom R-75 receiver, a narrow audio filter (7 Hz BW), a 10
foot diameter amplified loops, and earphones.
Skip Magnuson ?W7WGM
--
don??? va3drl
