[RFI] Wired vs Wireless Routers for RFI
Leigh L Klotz, Jr.
Leigh at WA5ZNU.org
Wed Jan 9 19:02:31 EST 2008
This has been my experience as well. I went one better and purchased 10
megabit fiber on eBay. The dober to 10baseT converters run off 5v
supplies and cost about $30 each. I got some PCI cards with fiber
instead of 10BaseT connectors for $10 each. The ST connector multi-mode
fiber is inexpensive and can often be scrounged from workplaces that
have moved to gigabit single-mode or to more modern connector styles.
For the neighbors I still plan to give the gift of toroids, though.
On Wed, 9 Jan 2008 10:18 am, K4RO Kirk Pickering wrote:
> Hello John,
> I wonder what speed Ethernet you are running?
> I have tried 3 different brands and vinatges of
> wired hubs for my home 10-base-T network. Every
> device tried caused terrible RFI at 100MBPS. I finally
> reverted to using a 15-year old 10-base-T hub, which
> forces all the cards to run at 10 instead of 100MBPS.
> With this hub, I run three servers (Linux) and two desktops
> (one XP and one Mac) in the house with minimal RFI.
> I rarely notice the difference in speed except when
> moving really huge files across the network.
> -Kirk K4RO
> On Wed, Jan 09, 2008 at 09:16:34AM -0800, 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
>> 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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