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'73 de Richard - IK7FMO -
JN80OX
----- Original Message -----
Sent: Saturday, January 04, 2014 10:42
PM
Subject: Re: RE: LF: 8270Hz
ehmm sorry forgot the capture..
----- Original Message -----
Sent: Saturday, January 04, 2014 9:30
PM
Subject: Re: RE: LF: 8270Hz
Hello Uwe!
just for fun ... I don't think it is your
signal... but better ask ;-)
have a look to the signal started at 1955UTC
and stopped (at least here) around 2025 UTC
Marco IK1HSS
----- Original Message -----
Sent: Saturday, January 04, 2014 2:21
PM
Subject: Re: RE: LF: 8270Hz
Hi
Paul, Lubos, Peter, Markus es all, tks Paul for the comparison and the
grabber - my main indicator for FS and QRG. today I put one briquet
more on it, means 500Wrms to abt 600Wrms output. Im switching to
Op-4H now at 1420UTC. GL Uwe/dj8wx
Von: [email protected]Gesendet:
04.01.2014 13:20 An: [email protected]Betreff:
RE: LF: 8270Hz
Hello Uwe, Peter, all!
Well ... It is clear now ... :-)
OK, I hope to see your signal again.
73!
Lubos, OK2BVG
Date: Sat, 4 Jan 2014 12:36:57 +0100 From:
[email protected]To: [email protected]Subject:
Re: RE: LF: 8270Hz
Hi
Lubos es all, nice you shifted your grabber. yesterday at 1618UTC I
switched the TX off and now at 1227UTC the carrier is on the air
agn. will Paul Nichelson shift his grabber too? OK. Peter,
some hours later Ill switch to Op.4H. GL Uwe/dj8wx
Von: [email protected]Gesendet: 04.01.2014 10:11 An:
[email protected]Betreff: RE: LF: 8270Hz
Hello Uwe!
I saw your signal on 8270Hz yesterday afternoon. Are you transmitting
now, please? There is a visible signal on 8269.93 on PA1SDB´s grabber, but
it is out of my grabber window (8270 +/- 50mH). Is it your signal or some
QRM?
73!
Lubos, OK2BVG
Date: Fri, 3 Jan 2014 14:30:43 +0100 From:
[email protected]To: [email protected]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 --
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