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RE: LF:unknown carrier on 472.5 [was: OM1II loud]

To: <[email protected]>
Subject: RE: LF:unknown carrier on 472.5 [was: OM1II loud]
From: "Clemens Paul" <[email protected]>
Date: Sun, 4 Nov 2012 08:51:56 +0100
In-reply-to: <[email protected]>
References: <00a701cdb9f4$3da16ac0$0501a8c0@xphd97xgq27nyf> <00c301cdb9f5$81dc7fd0$0501a8c0@xphd97xgq27nyf> <D9318030DF9D4BC6A88777911BAEB63E@SV8CSHP> <[email protected]> <8B6DF9B1D2684ACD8ADBD10ABB0002E6@SV8CSHP> <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Thread-index: Ac26I/PE8oa58qHYRUO5ph1pWThOZgAPH0NA
I noticed that carrier too last evening and was wondering about its origin.
Now I remember that it has been reported recently on the list.
As Stefan says,perhaps some IMD2 calculations might help in finding the
culprit. 

73
Clemens
DL4RAJ  

>-----Original Message-----
>From: [email protected] 
>[mailto:[email protected]] On Behalf Of wolf_dl4yhf
>Sent: Sunday, November 04, 2012 1:29 AM
>To: [email protected]
>Subject: Re: LF: OM1II loud
>
>
>
>Am 03.11.2012 22:07, schrieb Stefan Schäfer:
>> Lubos,
>>
>> I can hear OM1II on 472.5 again. But there is the QRM trace which is 
>> stronger in the evening. I don't think it is local.
>
>Zigactly. I have that carrier on 472.5 too, since a couple of 
>months, but these days it's very audible and annoying. I tried 
>to find an ID (modulation sideband) symmetrically around that 
>carrier, but didn't find anything related to that frequency.
>
>The SV beacon was sometimes audible here, and even on Joe's frequency
>(504.1 kHz) there was a sometimes audible signal. But 
>suspiciously the signal was switched off at 23:00 UTC, so I 
>guess it was something else. 
>The signal looked like a carrier, some seconds long, 
>interrupted at regular intervals by a CW ID (which I couldn't 
>read by ear). I have a screenshot of a spectrogram on the 
>'portable' computer if anyone is interested.
>
>
>All the best,
>   Wolf .
>
>
>
>
>-----
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>Ausgabedatum: 03.11.2012 
>



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