John, You changed power supplies.
You changed cables. You changed................ No telling what "fixed" the issue. Jim W6AIM -----Original Message----- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Ahrendts Sent: Friday, February 5, 2016 5:16 AM To: sha...@katzenfisch.com Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] slightly OT -- acceptable network switch (aka Linksysproduces birdies) John, I’ll concur with Larry. I have several D-Link gigabit switches using CAT6 cable with no apparent noise, and I believe their “green” technology actually shuts off unused ports when not in use. Amazon. David A., KK6DA, LA > On Feb 5, 2016, at 1:48 AM, Larry Gauthier (K8UT) <k...@charter.net> wrote: > > John, > > I had a similar situation here with a LinkSys switch. Tried a NetGear switch > and the birdies moved - but were still present. Solved the problem by moving > all networked devices from cat5 10 mb to cat6 1000t gigabit ethernet. > > -larry (K8UT) > -----Original Message----- From: John Shadle > Sent: Thursday, February 04, 2016 1:07 AM > To: elecraft@mailman.qth.net > Subject: [Elecraft] slightly OT -- acceptable network switch (aka > Linksysproduces birdies) > > I just completed my K3S build and initial configuration. Woohoo. I was > tuning around the bands, and I noticed birdies *everywhere*. Every > 20-30Hz on 40m there was one -- and it was LOUD. I thought that > something was up with my build, but then started doing an internet search for > "K3 birdies". > I saw one person (from a 2010 post on this list) note that the birdies > could be coming from network devices (routers). A-ha! > > Initially, I thought it had something to do with my ASUS wireless > router being extremely close to my operation location. I unplugged it, > and the noise went away. Then I plugged it back in and removed, one by > one, the connections to various devices (network storage, my shack > computer, and the line that runs to my upstairs office). It just so > happens that I had installed a network switch recently (produced by > Linksys, and on sale at Best Buy last week). I unplugged the cable > going to that switch, and the noise went away. I then plugged it back > in, and went to the office and disconnected the power from the Linksys > switch. Noise is gone again. > > So, I'm looking for a new network switch. Does anyone have advice on > what has worked for them? > > Alternately, any idea on how to get the network switch from producing > these awful birdies? > > I'm *not* looking for a new router -- but just a switch. > > Thanks. > -john NE4U > Madison, WI > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > k...@charter.net > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > davidahren...@me.com David Ahrendts davidahren...@me.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to jbol...@outlook.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
