Hi Markus
Well the time I logged in to this RX the map still showing the RX
was in the dark area. May be I express myself in a wrong way, I
meant that at this receiver an erractic carrier was stronger than
I was able to test on european RX (India = nil, Phliliphines only
a square/sawthoot tipical from sort of PLL generation).
Nothing close to this settled state. Yesterday was really evident
the swing.
Now 00:00UTC, Iran Carrier is nice. Some
say it's a 20KW stn.
This is a one drive folder with some captures:
https://1drv.ms/f/s!AqqMI-jtF8uHiJAW_0uWjnEYVVVoQw
73
Marcus
PY2PLL
Em 10/11/2018 21:11, Markus Vester
escreveu:
Hi
Marcus,
yes a GPS 1 Hz comb would surely help. Iran is currently
moving between +259.2 and 259.5 Hz, and might be useful to
identify the right 1 Hz harmonic.
The "swinger" stopped oscillating after 18:20, and after some
erratic drift seems to have more or less settled around +0.3
Hz now. I would be surprised if it really came from East Asia
as it would probably have faded out earlier than 4 UT. Since
21:50, another weak one came up around -0.02 Hz.
Ralph is still steady at +0.411 Hz, plus minus a mHz.
Best 73,
Markus
-----Ursprüngliche Mitteilung-----
Von: Marcus PY3CRX PY2PLL <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Sa, 10. Nov. 2018 23:42
Betreff: Re: LF: 1476 kHz AM
hI ...
The thermostat swinger is "strong" in a Vietnam KiWi SDR
Propagation not ok tonight, no signal from this
"reference" here now ...
I have 3 carriers detected, all stable and close to center
freq (.5Hz differece) so hard to say who's who.
I don't have a GPS reference to verify my own calibration.
May be some comb generator from a pps helps.
73
Marcus
PY2PLL
Em
10/11/2018 19:40, Markus Vester escreveu:
Morning from Alaska - I was a little
late in shoving the North bound beam over the
pole and taking a look at 1476kHz - We have
numerous co-channel stations on Oz, China,
Indonesia and Russia and I tried to reduce them
using the K9AY but I dont think Im seeing
anything yet.
It wasnt a particularly good night .
Ill take another look at sun down in a few
hours. Notice the abrupt turn off for one or
more transmitters, and someone LF of
1476 appears to have a lot of recurring
on/off/wobble about... I also have a 1Kw
station within a mile on 1430 which is putting
out some low freq rumblings which isnt helping.
It does Happen occasionally as Ive
heard Moray Firth and North Sound radios on MW
from this side.
73 Laurence KL7L KL1X
http://kl7l.com/1476.jpg
Hi Lubos, Dave, Chris,
great news! Thank you so much for
listening and reporting.
Chris, I'm pretty sure that Ralph will
love to read about your receiver!
Best 73,
Markus
-
Von
meinem Samsung Gerät gesendet.
After the sad
demise of all
LW and MW
broadcasts in
Germany, a
handful of
pioneers came
up who are
operating
legal
low-powered
medium wave
stations in
the context
of a radio
museum or
for educational
purposes. One
of them is
Ralph (DL2NDO,
one of the
participants
in the
legendary
Donebach 137
kHz activation
in 2002).
He has
obtained a
transmitting
license for
1476 kHz
(former
frequency of
Vienna
Bisamberg), built a
3 Watt AM
transmitter,
and with the
help of a
small team
raised a
quarterwave antenna
on the
Fraunhofer
premises south
of Erlangen
(JN59MN21HF).
Yesterday they
got on air for
the first
time, running
a preliminary
test
transmission
consisting of
switched 1000
Hz beeps (one
second on, one
second off,
audio
frequency
locked to the
RF carrier).
This pattern
will
be continued
for a few
days, before
they will
eventually.take
over the audio
from the local
DAB student
radio
"funklust".
The current
test pattern
is relatively
easy to make
out in the
noise so it
may be a good
chance for
some DX
detections.
At night
we've actually
heard the
beeps
on Twente SDR
and a couple
of German
Kiwi-SDRs. But
I guess
using narrowband
signal
processing
techniques,
the carrier
and coherent
tones could
make it much
further. The
carrier
frequency is
derived from
an OCXO and is
currently at
1476000.411
Hz.
Will anyone in
the group take
the challenge?
Best 73,
Markus (DF6NM)
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