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Re: LF: To all VLF transmitters

To: [email protected]
Subject: Re: LF: To all VLF transmitters
From: DK7FC <[email protected]>
Date: Sun, 17 Sep 2017 20:47:02 +0200
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VLF,

The carrier is still running but will stop at 20 UTC this evening.

Mike, how does your result look now?

Paul, thanks for the nice peak plot!

73, Stefan

Am 11.09.2017 15:07, schrieb Michael Dennison:
Thanks, Stefan. I will set a receiver up today. I always lock SpecLab to a utility station, but it is a good suggestion to display an Alpha as a check that all is working.
Mike, G3XDV

From: DK7FC
Sent: ‎10/‎09/‎2017 11:55
To: [email protected]
Subject: Re: LF: To all VLF transmitters

Hi Mike,

All right. After the currently running experiment i'll run some carrier
or maybe DFCW-60000. I'll announce it a few days before.
Make sure a 47 uHz window is running to that time, maybe two
Spectrograms, one showing 8270 Hz, the other one showing ALPHA F1,
11904.7619 Hz.
Locking to GBZ or GQD or 1 PPS is a requirement! Maybe Eddie can help
you if necessary.

73, Stefan

Am 09.09.2017 11:51, schrieb Mike Dennison:
> It is really interesting to follow the activities of those using the
> extremely challenging frequencies below 10kHz, but can I make a plea
> for anyone testing on VLF to give a day or two notice when announcing
> transmissions. Not everyone has a permanent VLF receiving set-up.
>
> I am happy to run a VLF receiver but to do so I must stop my 136kHz
> activities, retune the antenna (in daylight), and set up an extremely
> slow spectrogram which will take several hours to show enough
> background noise to prove that it is working.
>
> There must be other stations who would like to join in with the tests
> but are in the same position as me. Sometimes, by the time the
> spectrogram displays anything useful the transmission has stopped or,
> worse, the transmitting station does not say when he has stopped
> transmitting.
>
> Thanks.
> Mike, G3XDV
> ==========
>
>
>
>
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>   

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