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

[Jerry Moore]

You may try simply grounding the switch. I've resolved much of my station
noise with grounding and some basic shielding. It's an ongoing process.
I started with no proper grounds and am slowly adding them. It's amazing to
see the differences.

Jerry Moore
CDXA, INDEXA, SKCC, Fists
AE4PB, K3S - S.N. 010324
http://www.qrz.com/db/AE4PB
An Amateur is - Considerate, Loyal, Progressive, Friendly, Balanced, and
Patriotic.


-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of John
Shadle
Sent: Thursday, February 04, 2016 1:07 AM
To: elecraft at mailman.qth.net
Subject: [Elecraft] slightly OT -- acceptable network switch (aka Linksys
produces 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
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