RE: LF: To all VLF transmitters

[Michael Dennison <mike.dennison@ntlworld.com>]

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

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From: DK7FC
Sent: ‎10/‎09/‎2017 11:55
To: rsgb_lf_group@blacksheep.org
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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