Hi
Marco,
nice to hear/read from you.
I cant see anything wrong in your
settings.
but "0,95mHz" seems to be vy wide.
did you see my
tranmissions on 8970Hz?
could it be a QRM carrier?
may we see a
screenshot?
I switch my transmission off now at 1618UTC. can you
cnfm?
GL
Uwe/dj8wx
Von:
[email protected]Gesendet:
03.01.2014 14:58
An:
[email protected]Betreff:
LF: Re: 8270Hz
Hello Uwe,
just switched on since
few minutes on this side, and probably made something wrong...
Ant miniwhip like 10m
from the roof (abr 45mabove ground)
RX SpecLab using
configuration "8.97kHz 0,95 mHz 300s MSK locked" I moved to 8270 Hz changing
the the "center frequency" to 8270Hz being no able to QSY in other way (is
that correct??)
The SR calbrator is
moved to 19580Hz GBZ.
So this is the setup
and see a signal just on 8270,0 Hz which is close to 20dB over the noise....ok
this is the dreamer band but I can't believe I'm seeing your
signal...
Can anybody give a
suggestion?
73, Marco
IK1HSS
----- Original Message -----
Sent: Friday, January 03,
2014 1:30 PM
Subject: LF: 8270Hz
OK.
OK. dreamers, the TX is on the air since 1309UTC.
QRG:
8270.000Hz.
WX: continuous rain but not so strong.
when ever the order
comes, I can switch to Op-4H.
GL
Uwe/dj8wx
Von:
[email protected]Gesendet:
03.01.2014 13:21
An:
[email protected]Kopie:
[email protected]Betreff:
Fw: VLF: 8.275 kHz
Paul Nicholson put
forth the important argument that we'd better stay away from 8280 because
it's a multiple of 60 Hz. Mains harmonics tend to drift a bit with the
line frequeny so further away is better.
Thus I retract my
preposition, and suggest instead to stay with the original 8270
Hz.
Uwe, go
ahead!
Best 73,
Markus
PS Direct harmonics
from 16.67 Hz are relatively weak here, even though the railway is only 400
m away. It looks more like carriers from switchmode power
conversion units (eg near 8 kHz), accompanied by the telltale
33 Hz spaced sidebands. Unfortunately these frequencies are not easily
predictable.
Sent: Friday, January 03, 2014 12:56 PM
Subject: Re: VLF: 8.275 kHz
8970 is well placed with respect to harmonics of
both
50 and 60Hz.
8270/8275 not so good in a 60Hz region.
8124 to
8126 would be a good range, considering
harmonics of 16.67Hz, 50Hz, and
60Hz.
Let me know what is decided, I will switch my
spectrogram
over to the new band.
--
Paul
Nicholson
--
