with
other Netgear router. My point is, when all else fails, try another brand
or model. Good luck.
Terry, W0FM
-Original Message-
From: Mike K2MK [mailto:k...@comcast.net]
Sent: Tuesday, November 16, 2010 5:03 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3: Are the birdies really
Birdies are mainly an issue for me on VHF+ where I am involved with
copying super-weak signals; bain of all eme stations. If 28-MHz is
impacted I will have to work on that as I am running the K3 with
transverters that output 28-32 MHz. Of course the output signal
level may be high enough not
There's a very interesting item in December's QST The Doctor is In feature
(page 48 right column). Receiver birdies turned out to be caused by a noisy
router. I have learned to live with 10 meter birdies on my K3. But lately
I've been active on 12 meters and there is an S5 birdie at about
Mike,
OK, you are finding good information about the source of the birdies
(which are not really birdies, but real signals).
If you can locate your antenna away from the router and ethernet cables,
your problem will diminish. My computer network is confined to the
inside of a stucco covered
Hi Mike,
They're not birdies, but real signals. See what happens when you disconnect
your antenna. If they were birdies, therefore originating from within the
radio, you'll still hear them.
I have two routers in my house, and both wreak havoc for me! I still
haven't found a good way to
On Nov 16, 2010, at 3:02 PM, Mike K2MK wrote:
Moving the shack CAT 5 cable away from other radio related cables is having a
positive effect. Next I'm going to try a shielded CAT 5 cable from the wall
to the shack PC.
I can attest to the effectiveness of shielded Ethernet cables (for me
Try hosting the neighborhood wireless RAP at the top of your tower [in
exchange for free, pretty-high speed Internet in an area with no DSL, no
CATV, and no sewers. OK the last doesn't count]. Truthfully, the
number of external signals I hear are fewer and of lower amplitude than
I thought I
I long ago diagnosed several of my RFI problems on ethernet devices
throughout the house. I tried everything to get rid of it including making
special ethernet jumpers I put at the source devices with ferrite and
by-pass capacitors between the offending pair of wires (the TX/RX wires).
Of course
Hi,
I am still working on mine. My main problem is that I have yet to find a
source of ferrites that are big enough to thread cables with connectors
through (the snap-on ones are totally useless) and effective on HF. I have
borrowed ferrites from the kits we have at work but they are only
Don and James,
You are both correct. I was pretty sure the S5 router noise was a birdie as
I had already switched to my dummy load. But now I disconnected the PL259
from the back of the K3 and the router noise on 12 meters is down to S1. So
it is probably being picked up by the 4 cables between
On 11/16/2010 4:05 PM, Kok Chen wrote:
After fighting with Ethernet noise, I finally swapped out all the Ethernet
switches in the house with ones that have metal enclosures (Netgear GS
series), and replaced all UTP CAT-5 cables to STP CAT-6 cables. The shielded
switches by themselves
On 11/16/2010 4:23 PM, ab2tc wrote:
I am still working on mine. My main problem is that I have yet to find a
source of ferrites that are big enough to thread cables with connectors
through (the snap-on ones are totally useless) and effective on HF.
See Appendix One of
Don't forget the PC and the monitor AND your new HD TV. Now that many are
using flat panel monitors and have HD TV's you have a whole new set of
frequencies to work around.
My PC LCD display went bad a few months ago, and being a good ham I salvaged
as many good parts as possible. In addition
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