[RFI] RFI Digest, Vol 88, Issue 3

stbradford stbradford at insightbb.com
Wed Apr 7 13:42:52 PDT 2010 

This frequency is being used by,    http://www.fmarc.net/WYFR.htm  ,  
located in Florida.
I first heard it on my Collins 75S3.  It's so strong in Evansville 
Indiana that it passed through the rf section and mixes with the crystal 
oscillator for 40 meters.  Tuning the radio has no effect on the 
signal.  In fact I can remove the vfo oscillator tube and the signal is 
still present.  Maybe a trap in the front of your receiver would help.  
In my case I just don't worry about it because  my 200 hz cw filter 
stops it cold.

Smith Bradford
W9HAK



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> Today's Topics:
>
>    1. RFI "Video" Help (Tony)
>    2. Re: RFI "Video" Help (Tony)
>    3. Broadcast QRM Splatter on 6985 kHz (Jim Brown)
>    4. Re: Broadcast QRM Splatter on 6985 kHz (Jim Brown)
>    5. Re: RFI "Video" Help (Tony)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 06 Apr 2010 21:59:05 -0400
> From: Tony <dxdx at optonline.net>
> Subject: [RFI] RFI "Video" Help
> To: RFI at contesting.com
> Message-ID: <4BBBE6E9.6010000 at optonline.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> All,
>
> I'm getting RFI from a location south east of my QTH. It seems to be 
> intermittent, but it can sometimes go on for long periods of time. I 
> made a video of the interference using a Flex 5000 and the signal is 
> clearly visible in the panadapter. I can null the noise completely on 20 
> meters with the 5 element mono-bander I have so it would seem that the 
> source of the noise is a fair distance away. It shows up across the 
> entire band and sounds like video.
>
> The video / recording is just under 3MB.
>
> Thanks,
>
> Tony -K2MO
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 06 Apr 2010 22:23:31 -0400
> From: Tony <dxdx at optonline.net>
> Subject: Re: [RFI] RFI "Video" Help
> To: RFI at contesting.com
> Message-ID: <4BBBECA3.90607 at optonline.net>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> On 4/6/2010 10:01 PM, Billy Cox wrote:
>   
>> Tony, Try the same test, this time on 10m
>> as the higher in freqency you can hear/see
>> the noise, then the closer it is to you.
>>
>> Hope this helps!
>>
>> 73 de Billy, AA4NU
>>    
>>     
>
> The noise falls off quite a bit on 10 meters Billy.
>
> Thanks for the input.
>
> Tony -K2MO
>
>
>   
>> -----Original Message-----
>>    
>>     
>>> From: Tony<dxdx at optonline.net>
>>> Sent: Apr 6, 2010 8:59 PM
>>> To: RFI at contesting.com
>>> Subject: [RFI] RFI "Video" Help
>>>
>>> All,
>>>
>>> I'm getting RFI from a location south east of my QTH. It seems to be
>>> intermittent, but it can sometimes go on for long periods of time. I
>>> made a video of the interference using a Flex 5000 and the signal is
>>> clearly visible in the panadapter. I can null the noise completely on 20
>>> meters with the 5 element mono-bander I have so it would seem that the
>>> source of the noise is a fair distance away. It shows up across the
>>> entire band and sounds like video.
>>>
>>> The video / recording is just under 3MB.
>>>
>>> Thanks,
>>>
>>> Tony -K2MO
>>> _______________________________________________
>>> RFI mailing list
>>> RFI at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/rfi
>>>      
>>>       
>> __________ Information from ESET NOD32 Antivirus, version of virus signature database 5005 (20100406) __________
>>
>> The message was checked by ESET NOD32 Antivirus.
>>
>> http://www.eset.com
>>
>>
>>
>>
>>    
>>     
>
>
>
> ------------------------------
>
> Message: 3
> Date: Tue, 06 Apr 2010 21:21:56 -0700
> From: "Jim Brown" <jim at audiosystemsgroup.com>
> Subject: [RFI] Broadcast QRM Splatter on 6985 kHz
> To: "RFI List" <rfi at contesting.com>
> Message-ID: <20100407042156.8F20D5962C at gw1.nlenet.net>
> Content-Type: text/plain; charset="us-ascii"
>
> I happened to look at the LP Pan screen that I have hooked up to a K3 and saw 
> massive splatter from a broadcast station on 6985 kHz that extends well into 
> 40CW. The LP Pan rig is new to me, and I'm not absolutely sure that the 
> splatter isn't overload (although I suspect that it's not). Can someone else 
> take a look at this?  It almost looks like digital modulation superimposed on 
> the analog AM. It's a religious broadcaster. Tentatively, I'd guess that it's 
> coming from S or SE of me. 
>
> 73,
>
> Jim K9YC
>
>
>
>
> ------------------------------
>
> Message: 4
> Date: Tue, 06 Apr 2010 21:52:59 -0700
> From: "Jim Brown" <jim at audiosystemsgroup.com>
> Subject: Re: [RFI] Broadcast QRM Splatter on 6985 kHz
> To: "RFI List" <rfi at contesting.com>
> Message-ID: <20100407045259.C7A955962C at gw1.nlenet.net>
> Content-Type: text/plain; charset="us-ascii"
>
> On Tue, 6 Apr 2010 21:44:41 -0700, pfizenmayer wrote:
>
>   
>> I see it on the Orion sweep along with the two major sidebands.
>>     
>
> Thanks Hank. Do you see sidebands extending up to about 7015 or so? 
> The LP Pan display averages, so anything that's on a discrete 
> frequency is going to stick up, but it would be heard as noise. I'd 
> say the sidebands at 7010 are about -40dBC, and often at least 10dB 
> above the displayed noise floor. 
>
> BTW -- they're gone now. 
>
> 73,
>
> Jim K9YC
>
>
>
>
>
>
>
> ------------------------------
>
> Message: 5
> Date: Wed, 07 Apr 2010 02:17:02 -0400
> From: Tony <dxdx at optonline.net>
> Subject: Re: [RFI] RFI "Video" Help
> To: RFI at contesting.com
> Message-ID: <4BBC235E.6000504 at optonline.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Anyone willing to take a look at the RFI  video / audio clip?
>
> Thanks,
>
> Tony -K2MO
>
> On 4/6/2010 9:59 PM, Tony wrote:
>   
>> All,
>>
>> I'm getting RFI from a location south east of my QTH. It seems to be
>> intermittent, but it can sometimes go on for long periods of time. I
>> made a video of the interference using a Flex 5000 and the signal is
>> clearly visible in the panadapter. I can null the noise completely on 20
>> meters with the 5 element mono-bander I have so it would seem that the
>> source of the noise is a fair distance away. It shows up across the
>> entire band and sounds like video.
>>
>> The video / recording is just under 3MB.
>>
>> Thanks,
>>
>> Tony -K2MO
>> _______________________________________________
>> RFI mailing list
>> RFI at contesting.com
>> http://lists.contesting.com/mailman/listinfo/rfi
>>
>> __________ Information from ESET NOD32 Antivirus, version of virus signature database 5005 (20100406) __________
>>
>> The message was checked by ESET NOD32 Antivirus.
>>
>> http://www.eset.com
>>
>>
>>
>>
>>    
>>     
>
>
>
> ------------------------------
>
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> End of RFI Digest, Vol 88, Issue 3
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