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@btinternet.com To: "jeff" kb2m@comcast.net; amsat-bb@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@comcast.net To: amsat-bb@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@UNITED.NET To: amsat-bb@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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Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb