[Moon-Net] Ethernet Interference

Jim Sanford wb4gcs at wb4gcs.org
Sun Sep 8 01:03:46 CEST 2019


Try this:

http://www.w5zn.org/files/Slaying%20the%20Grim%20Reaper%20of%20Internet%20Router%20Noise%20on%206%20Meters.pdf

I haven't "treated" every ethernet spigot, but this has made a difference.

Good luck & 73,

Jim

wb4gcs at amsat.org


On 9/7/2019 3:17 PM, Edward R Cole via Moon-net wrote:
> Trevor,
>
> A few years ago I tried reducing 2m birdies and tried some clampon 
> ferrites with no noticeable improvement, but then I bought some Cat6 
> shielded cable jumpers which did help a little.  My main internet 
> cable is 25-foot of cat5e from another room that has the router, so 
> that might still radiate some.
>
> Most of my birdies were RF from surrounding area coming in antenna 
> cables.
>
> BTW I am using Cat6 shielded cable with my digital angle encoders on 
> my eme antennas which eliminates RFI to my digital display.
>
> 73, Ed - KL7UW
>
> At 10:22 AM 9/7/2019, MR TREVOR DUNNE via Moon-net wrote:
>> Hi All
>>
>> I seen a post somewhere recently explaining that it was a waste of 
>> time putting ferrite on either utp or stp Ethernet cables, I can't 
>> remember which, or where I read it, I am trying to remove some 
>> birdies on 2m caused by home network,
>>
>> Anyone have any pointers, I have a large amount of cat cable around 
>> my house so don't want to replace it with the wrong type,
>>
>> Thanks
>> Trevor
>> EI2GLB
>> _______________________________________________
>> Moon-Net posting and subscription instructions are at 
>> http://www.nlsa.com/nets/moon-net-help.html
>
> 73, Ed - KL7UW
>   http://www.kl7uw.com
> Dubus-NA Business mail:
>   dubususa at gmail.com
> _______________________________________________
> Moon-Net posting and subscription instructions are at 
> http://www.nlsa.com/nets/moon-net-help.html
>
>

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