Re: LF: carrier on 136.7

["Markus Vester" <markusvester@aol.com>]

The unid carrier source seems to have reappeared, morphed into noise bands with same timing:

https://dl.dropboxusercontent.com/u/26404526/df6nm_150302_0445.jpg

 

Still visible in daylight on Stefan's qrss-10 grabber:

http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_LF_Grabber.html

 

73, Markus (DF6NM)

From: Markus Vester

Sent: Wednesday, February 18, 2015 9:25 AM

To: rsgb_lf_group@blacksheep.org

Subject: Re: LF: carrier on 136.7

Andy,

 

I've been wondering about that one too. It seems to be an intentional transmission as the frequency is constant (136697.3 Hz), and timing is reproducably 100 s duration and 6 minutes repetition, starting yesterday 1700. It's about 5 uV/m here and coming in from west or southwest.

 

Best 73,

Markus (DF6NM)

From: rn3agc

Sent: Wednesday, February 18, 2015 8:36 AM

To: rsgb_lf_group@blacksheep.org

Subject: Re: LF: carrier on 136.7

Laurence,

This signal is also present on the grabber DF6NM.
The signal was there at night and now there.

73
Andy


> Looks like switchmode or similar annoying noise Andy
>
> Laurence KL7L
 
> From: rn3agc@mail.ru
> To: rsgb_lf_group@blacksheep.org
> Date: Wed, 18 Feb 2015 02:48:35 +0300
> Subject: LF: carrier on 136.7
>
> Hi LF,
>
> Who is this? What is it?
>
> 73
> Andy