[Elecraft] slightly OT -- acceptable network switch (aka Linksysproduces birdies)

[David Ahrendts]

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) <K8UT at 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 at 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 at 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 k8ut at charter.net 
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at 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 davidahrendts at me.com




David Ahrendts   davidahrendts at me.com