[Lowfer] 18.6 kHz

[Graham]

I would agree with David's observation, looks like one of the Russian 
FSK transmissions. I have noticed them on this frequency before.

Also, 21.1 kHz was active too, you can see a short bit around 11:05:30 
on your screen grab.

Also of note, conditions seems pretty good last night. I was seeing the 
Russian Beta Time signal broadcasts as well. I usually see the 07 and 09 
UTC broadcasts quite well but I also noted at 06 and 10 UTC too. And on 
your screen grab you will see some other unusual activity on the BETA 
Time signal frequencies (25.0, 25.1, 25.5, 23.0, and 20.5) The right 
sequence of frequencies but very short duration.  Perhaps some 
maintenance taking place.

You can see this on my screen grab of about the same time:

https://www.dropbox.com/sh/ahvgr4sekcgg99s/AADVOu-8WVWYLoA7wEkQ5v7Ka/ve3gtcVLFgrab20141222_111423.jpg?dl=0

my VLF grabber can be found here:

https://www.dropbox.com/sh/ahvgr4sekcgg99s/AACd6pWv1hMNk6xvLGxGydKpa#/

Updates every 5 minutes, keeps grabs for two days.

cheers, Graham ve3gtc



On 2014-12-22 07:45, David L. Wilson wrote:
> 18.6 been used by TACAMO (and before that was Jim Creek WA frequency before
> they moved to 24.8.)
> I have heard often a Russian tune up on 18.6 and then apparently sometimes
> switch to 18.9.  Since it switched to what looks like a carrier before going
> off, looks like a Russian is most likely.
>
> --
> David L. Wilson
> dwilson314 at verizon.net
>
>
>> -----Original Message-----
>> From: Lowfer [mailto:lowfer-bounces at mailman.qth.net] On Behalf Of
>> jrusgrove at comcast.net
>> Sent: Monday, December 22, 2014 7:32 AM
>> To: lowfer at mailman.qth.net
>> Subject: [Lowfer] 18.6 kHz
>>
>> Some short term activity this morning ... not sure who owns the signal.
>> Frequency generally associated with US locations.
>>
>> http://www.w1vd.com/VLF122214.jpg
>>
>> Jay W1VD  WD2XNS  WE2XGR/2
>>
>>
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