[Yaesu] Re: [ICOM] Wired vs Wireless Routers for RFI

[Dale McGraw]

I thinks that all situations may have different routers.  Different CAT cables
have more internal twist in the wires than some. Different routers of the same
manufacturer will have different spurs.  So many variables.  When I first put in
my router which was a Linksys B I had so much noise that I hated to turn on the
radio.  The higher bands were the worse.  17 meters and above.  Bought some
shielded cables and 90% of it went away.  Had other ham friends do the same and
it made a big difference at their installation.  Never have heard of the pS
being a problem but anything is possible.  At my second home I am moving into
slowly, the 17 inch Gateway CRT monitor tears up the over the air TV that some
low vhf channels are hard to watch.  The monitor is about 25 feet directly below
the tv antennas.

Good luck , Dale

Dale McGraw wrote:

> I went to shielded ethernet cables at all points and it mad a tremendous
> difference.,  Even on wired only routers.
>
> 73 Dale K0JXI
>
> Avi - Modi'im Orchards wrote:
>
> > I think someone here pointed out that it could be noise from the wall-wart
> > power supply that is giving you the trouble. Perhaps try a different
> > wallwart, or some ferrite cores, or even, temporarily just for the test, a
> > battey pack at the correct voltage.
> >
> > -avi 4X6UA
> >
> > ----- Original Message -----
> > From: "Dave Holford" <holford at cogeco.ca>
> > To: "ICOM Reflector" <icom at mailman.qth.net>
> > Cc: <yaesu at contesting.com>; <ft100 at yahoogroups.com>; <rfi at contesting.com>;
> > <yaesu at mailman.qth.net>
> > Sent: Wednesday, January 09, 2008 22:41
> > Subject: [Yaesu] Re: [ICOM] Wired vs Wireless Routers for RFI
> >
> > Hi John,
> >
> > I installed a D-Link DI-604 wired router a while back, using Cat-5 cables.
> > The router is within 8 feet of multiple receivers, and router and cables
> > are about 20 feet from the feedpoint of an inverted L.
> > I have not noticed any increase in noise or birdies over the stuff that
> > was there before - neighbors TV and stuff!
> >
> > Also there is no evidence of RF to the network on any frequency from
> > 160m to 70cm running 100 Watts on HF and 30-50 Watts on VHF/UHF.
> >
> > Dave, VE3HLU
> >
> > John Geiger wrote:
> >
> > >I have tried 3 different wireless routers(Linksys,
> > >Netgear, and Ativa) and all 3 have put birdies on the
> > >20 meter band (maybe other places, but it is so bad on
> > >20m I gave up and didn't check other bands).  I was
> > >using them in a wired fashion, and all 3 put birdies
> > >on the same frequencies, which makes me think that it
> > >is something related to the workings of the router.
> > >The ethernet wires I have run around the house are
> > >radiating the birdies, as they disappear when I
> > >disconnect the wires.  However, I cannot afford to go
> > >wireless right now with buying all of the wireless
> > >equipment.
> > >
> > >Are wired routers using exactly the same circuitry
> > >(meaning they cause the same birdies) or have people
> > >found wired routers to be quieter RF wise.  I will
> > >probably break down and try one anyways, but thought I
> > >would try to get some feedback first.
> > >
> > >I am back to using my ethernet hub which is quiet with
> > >the ethernet wires running around the house, but the
> > >ISP will only give me 2 IP addresses, so the computer
> > >sitting next to the radio hasn't been connected to the
> > >internet for a couple of weeks.
> > >
> > >73s John AA5JG
> > >
> > >
> >
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