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Re: LF: Re: LF interference

To: <[email protected]>
Subject: Re: LF: Re: LF interference
From: "Gary - G4WGT" <[email protected]>
Date: Tue, 27 Nov 2012 21:45:57 -0000
In-reply-to: <[email protected]>
References: <8CDDC896504242CB8DDE22806560D8EF@GaryAsus> <1FE4925B2A914EFC95A3EB6AE4638594@GaryAsus> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Hi Stefan,
 
I have both active & passive.
 
The interference is there on both & on the passive when the active is switched off.
 
I have eliminated all my own possible sources.
 
Cheers, Gary - G4WGT.
 
----- Original Message -----
Sent: Tuesday, November 27, 2012 9:30 PM
Subject: Re: LF: Re: LF interference

Hi Gary,

What type of RX antenna are you using? Is it passive or active?

73, Stefan/DK7FC

Am 27.11.2012 21:56, schrieb Gary - G4WGT:
Hi All,
 
The interference has just stopped as suddenly as it started.
 
 
73,
 
Gary - G4WGT.
 
----- Original Message -----
Sent: Tuesday, November 27, 2012 8:41 PM
Subject: LF: LF interference

Hi All,
 
For about 7 days or so I have been getting some very strong interference on the 136kHz band. At first it only came on for short periods (up to 1 or 2 hours) but from yesterday it came on early evening & stayed until early today & is there again tonight.
 
The interfering signal sounds like a buzzing noise on my LF Rx & the visual display shows a very unstable form. It starts from about 137.000kHz upwards & fades towards 145kHz.
 
I have placed 3 captures on Dropbox, 2 SpecLab (showing the start time) & 1 HDSDR showing the extent of the interference.
 
 
If anyone can identify this type of interference I would be pleased for comments. I believe I have eliminated all my own gear & household items.
 
Thanks & 73,
 
Gary - G4WGT.
 
 
 
 
 
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