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A quick receive check is whether you can
actually hear the most distant Alpha transmitter as well,
ie. all three dashes on 11.905 kHz during the evening.
Another test is whether you can occasionally
see -40 dB modulation sidebands in a milliHz-resolution spectrogram.
These appear irregularly (often for a few hours around 6 UT),
and are caused by phase alterations on some of the Krasnodar
dashes. This is probably some sort of coded information, piggybacked on the
navigation system.
Best 73,
Markus (DF6NM)
Sent: Thursday, January 20, 2011 7:07 PM
Subject: Re: LF: Dream 9
Horst
I likewise am getting around 30 dB sig above noise
with a non resonant antenna.With my 137 Khz array resonated on 9 Kcs the
improvement is at least 20 dB
better, unfortunately there is so little Dreamers
acty diverting the system is not worth while.
73 de Mal/G3KEV
----- Original Message -----
Sent: Thursday, January 20, 2011 4:29
PM
Subject: Re: LF: Dream 9
I've got the
Alpha with -60 dB and about 25-30dB over noise. Maybe I'll soon catch the
first "dreamer".
I am still not sure if my configurations are allright now.
But trying some antenna locations around my house brought the best result at
the postition I have fixed the MiniWhip now.
I hope, it's good enough.
Otherwise I will have to quit thinking about receiving at
home.
Horst
Von: "mal hamilton" <[email protected]>
Gesendet:
20.01.2011 16:37:38
An: rsgb
<[email protected]>
Betreff: LF: Dream 9
VLF
I had some spare
time today and checked VLF Alpha on 11905 minus 65 dB and loud with 150
metres non resonant inv L.
My rx has a 1 Khz
bfo offset and on speclab the calibration looks ok for normal acty but at
QRS600 it might be a different story!!
RX af is LSB/USB
selectable at 3 Khz and 20 Hz
No signals visible
on 8.9 Khz, nice clean screen
Anyon active
?
de
mal/g3kev
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