Overnight signals at IO92ng http://g3zjo.bplaced.net attached
73
Eddie G3ZJO
On 27/11/2011 00:01, Stefan Schäfer wrote:
Paul, VLF,
Am 27.11.2011 00:16, schrieb Paul:
Stefan,
I register here your signal on the new frequency.
That is fine. Of course i am watching your "grabber" but saw that
the
signal seems to be weaker since 20 UTC. Is this due to the rising
noise? I would think so...
Overnight I expect your S/N here to decline, may even lose
the signal in the noise. Expecting that as the noise comes
up at Marlton, so will the signal. We shall see.
Yes. Here, these days the noise has its maximum just before 0 UTC
so it
may become even better here!
Laurence/KL7UK and Bill/VE2IQ are running their grabbers too. They
use
GPS locking (with SpecLab, which seems to work well) and loop
antennas.
See http://kl7uk.com/VLFAlaska.html
and
http://www.magma.ca/~ve2iq/grabs/index.htm
Attached provisional uncalibrated spectrum from Marlton 17:00
to 21:00 in one integration.
That looks quite clear. I still can't belive it completely. Does
all
that mean we have done the first transatlantic detection of a
non-commercial generated signal on VLF? If so, please write a good
explaning webpage as you did 2010 (it was very nice to read,
especially
the conclusions ;-) ), so that i can post the link on the LF
group!
After first hour on new frequency, the peak on Marlton's
spectrum has moved from 8970.0 to 8970.005. Will send
phase data in later email.
Which would confirm what is actually done and so it rises the
proof
that this is my signal! Wow!
Will you change frequency again at say 02:00 in order to
complete a 'K' ?
No, i will now stay on 8970.005 until at least 9 UTC which should
allow
some further integration times to get a better detection. Maybe
some
signals will come up in Alaska too. Laurence often reported that
DHO38
is strongest just before my local sunrise and has a sudden drop
then.
This is my first over-night transmission so i am optimistic to get
some
more interesting results and propagation phenomena can be
observed.
BTW, there is room for another 3...6 dB ERP here...
73, Stefan/DK7FC
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