[Top] [All Lists]

Re: [RFI] Computer birdies

To: rfi@contesting.com
Subject: Re: [RFI] Computer birdies
From: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Tue, 26 Jun 2012 17:25:44 -0400
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
On 6/26/2012 4:56 PM, Phil wrote:
> On Jun 26, 2012, at 2:45 PM, Jim Brown wrote:
>> On 6/26/2012 11:49 AM, charlie@thegallos.com wrote:
>>> I personally found, with my router and computers that the computer was the 
>>> really bad end, but putting cores on both ends helped too, as there was 
>>> some low level stuff coming from the router
>> Yes. Each end of a cable connected to ANY digital electronics should be
>> viewed as a potential noise source, but as several have noted, some
>> products are much noisier than others.
> As a quick check/test I found some likely Ethernet RFI crud close to 50.120 
> and 3.770.
> Shut computer down - 50.120 E'net crud stops as computer shuts off.
> Disconnected E'net cable from computer & router then powered computer back up 
> and switched it over to it's wireless interface.
> 50.120 & 3770 crud still gone.
> With the availability of reasonably  priced wireless routers along with 
> plugin wireless adapters for computer ethernet and USB ports not sure why it 
> makes sense to still fuss with using wired Ethernet networks in home/shack 
> and then need to install toroids, shielded cables, etc. to rid the radio of 
> Ethernet RFI crud.   Maybe one short e'net cable needed between the router 
> and upstream cable/DSL/etc. modem and thats it.

One problem...the wireless is too slow by far and requires more 
attention to security.  Apparently more than half of personal Wi-fi 
networks/connections are unsecure.

Even with a gigabit CAT6 network and 5 computers it takes hours to back 
them up

Wireless networks are getting faster, but have a ways to go.


Roger (K8RI)

> 73 Phil NA4M
> -. .- ….- --
> Phil Duff
> Georgetown, TX
> _______________________________________________
> RFI mailing list
> RFI@contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi

RFI mailing list

<Prev in Thread] Current Thread [Next in Thread>