[amsat-bb] Re: "Birdies" from Linksys Wireless router

[William Liporace - NA2NA]

I have seen some issues with hubs and switches, not usually from routers 
(have had a couple fail). I have not seen too many shielded CAT cables (I 
bet not cheap). You will find that CAT6 or CAT5E will give you the quietest 
cables (tightness of the twisted pairs). The newer cables usually have four 
different twist rates and a way of separating the pair to keep noise off of 
the each other. That was one of the reasons I have suggested these style 
cables.  I do my own wiring, but I do have all of the right tools and I have 
certified my drops. Just a bad work habit  ;-)

Hope that helps
73 Will WC2L

----- Original Message ----- 
From: "Graham Shirville" <g.shirville at btinternet.com>
To: "jeff" <kb2m at comcast.net>; <amsat-bb at AMSAT.Org>
Sent: Wednesday, May 07, 2008 9:28 AM
Subject: [amsat-bb] Re: "Birdies" from Linksys Wireless router


> Hi Jeff,
>
> Same problem here...does anyone use shielded twisted pair CAT 5 cables? 
> Does
> this help at all/a bit/not at all?
>
> thanks
>
> Graham G3VZV
> ----- Original Message ----- 
> From: "jeff" <kb2m at comcast.net>
> To: <amsat-bb at AMSAT.Org>
> Sent: Wednesday, May 07, 2008 12:49 PM
> Subject: [amsat-bb] Re: "Birdies" from Linksys Wireless router
>
>
>> On the other hand  I had a problem with a wired Netgear hub. If I 
>> remember
>> correctly the birdie was S9, and around 145.800 or right on the ISS Mir
>> d/l.
>> I had to unplug the wall wart from the hub to power it off, to work that
>> frequency. It was the hub, not the power supply, or Ethernet cat5 cable.
>> When I switched over to a hybrid (wired and 2.4 gig RF) Linksys router I
>> was
>> able to eliminate the wired hub that was causing the problem. I work AO51
>> L/S no problem. I still run wire to my main computer and also downstairs
>> in
>> my house as it is much faster than the Wireless G. How much faster?
>> According to Speakeasy speed test, wired 28212/2696 kbps, best rf (6 feet
>> away)10094/2646 kbps. BitTorrent notices a big difference!
>>
>>  I also tried several different hubs, from different manufactures, all
>> three of them had the same birdie, the problem went away when I went
>> wireless. Go figure...
>>
>>
>>
>> 73 Jeff kb2m
>>
>>
>> ----- Original Message ----- 
>> From: "Alan P. Biddle" <APBIDDLE at UNITED.NET>
>> To: <amsat-bb at amsat.org>
>> Sent: Tuesday, May 06, 2008 7:31 PM
>> Subject: [amsat-bb] Re: "Birdies" from Linksys Wireless router
>>
>>
>>> Mark,
>>>
>>> If they ever get around to using it, there is also a nice birdie on
>>> 145.870!
>>> My solution is to use ferrites on both the power and Ethernet cables 
>>> from
>>> the router, and also use the mast mounted preamp.  That is far enough
>>> away
>>> that the downlink swamps the birdie.  Since most of the noise goes away
>>> when
>>> you unplug the Ethernet cable to the desktop, I have been considering
>>> switching that to RF as well, as I have an unused PCI card handy.
>>>
>>> Alan
>>> WA4SCA
>>
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