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[Articles Home]  [Add Article]  

RFI Complaint Against Linksys

Jared Sherman (KC2MMI) on May 27, 2004
View comments about this article!

Several eHam members have had problems with RFI coming from the Linksys BEFSR41 home router, which claims to be Part15 Class-B certified as a home computing device.

Simple troubleshooting reveals that the routers are broadcasting heavy RFI directly out of the box, even with no cables plugged in. Linksys responds that this is an "out of warranty" repair issue, and thus not their problem. When I explained to them that there are more rules than their warranty involved, and this may be a manufacturing defect, they were not interested -- at all.

After Linksys made it clear that I was out of warranty, I peeled off the "VOID IF REMOVED" sticker to look inside. There are two small ferrites on the power jack, and a metal hood on the RJ-45 connectors, but no metallized paint inside the plastic shell, no shield over the CPU, apparently no real RFI protection of any kind in this "Part15 Certified Class-B" home computing device.

So, I've formally asked the FCC ( labhelp@fcc.gov ) to investigate whether the device was actually properly certified, and whether they were actually built the same way as the allegedly certified device. It is sadly not unknown for computer equipment makers to simply self-certify and makes no real attempt at compliance.

If anyone else has a similar product from Linksys (now owned by Cisco) please feel free to post your comments. Does your Linksys product create RFI? Do you have an antenna or HT in the same room? Would you like your name and comments added to the FCC inquiry?

The noise is an S3-S7 "frying eggs" across most of 2-meters and 70cm, it is overpowering. It also emits some TVI on VHF TV channels, easily visible on any TV using an antenna in the same room.

Just to clarify the technical issues, this is not being emitted from the Cat5 cabling. Even with NO external cables plugged in, the boxes emit heavy broadband RFI, all by themselves. In comparison, my computers (plural) and DSL-modem emit no RFI at all.

And kudos to Westell, Compaq, PC Power & Cooling, 3COM, and a few other vendors who did their jobs!

Member Comments:
This article has expired. No more comments may be added.
 
RFI Complaint Against Linksys  
by N7UQA on May 27, 2004 Mail this to a friend!
I had one of these and my problem was a horribly nasty broad band white noise that appeared in huge lumps across the 80, 40 and 20 meter bands. Also DO NOT leave any unterminated either net cables lying around (unless you are a glutton for punishment). In my case I replaced the stock unfiltered switcher with one out of an old Apple LC III computer. After that I found that leaving either net cables unterminated were exasperating the problem and creating spurs on 2 meters.



Craig - N7UQA
 
RFI Complaint Against Linksys  
by K9AAV on May 27, 2004 Mail this to a friend!
Jared
I found your comments interesting as I have that same
Linksys router sitting on a shelf in the shack here.
I have an Alinco HT sitting on the same shelf about
2 ft away here in my basement shack monitoring a local
repeater and I hear no abnormal noise from it. After
your article I even opened up the squelch and moved my
HT around but could not hear any RF noise from the
Linksys. My HF rig a FT-1000MP is sitting on my
operating desk about 3 - 4 ft. from the router and I
have not noticed any abnormal rf noise. Note: my
router is connected to a Zoom DSL modem sitting right
on top of the Linksys. Sorry but I guess I can't
help with any comments to the FCC. Don't know if I'm
just lucky here or what. Good Luck.
Denny
 
RFI Complaint Against Linksys  
by N4OZI on May 27, 2004 Mail this to a friend!
I had the same problem with my Linksys right near the ISS downlink at 145.8 MHz. So I replaced it with a D-Link router, and still had the interference. I had to power down the router in order to work the ISS.

One other very odd issue I have is with my wife’s PC in another room. I ran about 75 feet of CAT5 cable to her PC from the Linksys. When ever she turns on her PC the signal strengths on 75 meters drops on my receivers. The noise level doesn’t change that I can tell and the 80 meter dipole is right above the roof of the house near where the run of CAT5 cable runs. If I just turn off her PC the signal strengths come back up. In fact, if I just remove the CAT5 cable from her PC while it’s on the signal strengths come back up also, very odd. The same is true for this D-Link router too.

 
RFI Complaint Against Linksys  
by L1D on May 27, 2004 Mail this to a friend!
First, does powering the linksys from a battery instead of the wall-wart improve the problem?

Second, linksys's response is not unexpected. Google on how they treated the FSF when told that they were in violation of the GPL.
 
RE: RFI Complaint Against Linksys  
by N3HKN on May 27, 2004 Mail this to a friend!
I have not noticed a VHF noise issue. However, I do have numerous quite strong spurs across the 20 meter band (4 S units) and others bands to a lesser degree. The same thing maybe occuring with the poster that has desense problems but slightly out-of-band. In my case it is only one PC that causes the problem. If I remove the Cat-5 cable from the back of the PC the spurs/carriers go away. I was using the motherboard LAN port but installed a Kingston ethernet card and same thing. Changed cables and same thing. Toriods no help. Other PCs (3) plugged into the same port create no problems - 2 Dells and and IBM laptop. The offending PC is "homemade" - 1.6ghz AMD with an ECS motherboard.

Otherwise, no issues with my Linksys unit.
Dick N3HKN
 
RE: RFI Complaint Against Linksys  
by N6KEK on May 27, 2004 Mail this to a friend!
Linksys Router are really not so much the offender as the CAT5 wire is.
6m is particularly inudated with interference from these tings but as I said the cabling is where I have found the offensive interference emanating form.

Have not done it yet but plan to upgrade to Shielded CAT wire and wil post results.

Bob
 
RFI Complaint Against Linksys  
by KB9YUR on May 27, 2004 Mail this to a friend!
I have the same unit here, and no problems, so far. All the computers, radios and other
equipment here are going thru an APC SmartUPS 1000 unit which has it's own line noise
filtering circuit and common ground.

 
RE: RFI Complaint Against Linksys  
by AA4PB on May 27, 2004 Mail this to a friend!
I have a linksys router and a Linksys wireless access point just on the other side of the shack wall. No RFI detected here.
 
RFI Complaint Against Linksys  
by KZ1X on May 27, 2004 Mail this to a friend!
With a high-quality, low cost provided like Netgear around, why would wnyone buy LinkSys crap?

Netgear packages their products in steel housings, with shield-extended RJ-45 connectors for thos e who use shielded Cat 5e ... and their engineering group, led by RF experts, makes certain that gearing up for compliance testing results is only the start of good design.

Around here, it's Netgear, or nothing.
 
RFI Complaint Against Linksys  
by K3BZ on May 27, 2004 Mail this to a friend!
I'm using a Microsoft MN-500 Wireless Router between a cablemodem and my homebrew P4 machine in an all-metal case. I also have a Dell P3 in an all-metal case hard-wired to the router. None of my ethernet cables are shielded (didn't know you could get shielded ethernet cables) Neither of my computer cases are grounded to the main shack ground system, nor are any of the peripherals: 3 monitors, 2 keyboards, 2 mice, 2 speakers, 1 printer, 1 USB hub, 1 cablemodem, 1 router, etc, etc. I haven't noticed any additional noise or RFI, but with RFI the first thing I check out are grounds. I'm not very smart about this stuff, but maybe you are...should all this computer equipment be individually grounded to the station ground as is done with each piece of radio gear? And back to the point: would the RFI problem from the LinkSys router change at all if whatever passes for its "chassis" is grounded?
 
RFI Complaint Against Linksys  
by K3GI on May 27, 2004 Mail this to a friend!
I have the Linksys BEFSR11 and have no problems. I've had it over three years, so it is an earlier model.
 
RE: RFI Complaint Against Linksys  
by W5UX on May 27, 2004 Mail this to a friend!
No problem here.
 
RE: RFI Complaint Against Linksys  
by K0BG on May 27, 2004 Mail this to a friend!
I had one that was given to me. It too leaked. I tossed it in the trash and bought a new one. The problem went away. I suggest you do the same.

Alan, KØBG
www.k0bg.com
 
RE: RFI Complaint Against Linksys  
by AA6E on May 27, 2004 Mail this to a friend!
I have a Linksys WRT54G, Ethernet & WiFi wireless router. It has a cpu running embedded Linux. I get all kinds of HF output when I check with a sniffer probe, but it doesn't affect my HF work at all right now. (Actually, my LCD monitor and CPU were worse than the router before I tamed them.)

[I have had other Linksys gear that was a lot worse. YMMV. We need someone to do real measurements of many products for comparison. ARRL Lab?]

I have put ferrite cores on all wires (5-10 turns) including shielded Cat5. (It's Cat 4.5 after you twist it so much!) My HF antenna is fed through 100+ ft of RG-213. The rig is grounded well also.

I have two suggestions for computer networking in the ham world -

1. Use WiFi (2.4 GHz wireless) instead of Ethernet. This avoids Cat 5 wiring, which can be resonant at HF and cause all kinds of problems. It also prevents ground loops and other kinds of trouble.

2. Observe good grounding and antenna balance practice. No RF on the outside of coax. No RF in the shack. This will minimize pickup from your computer & networking hardware.

-73, Martin
 
RFI Complaint Against Linksys  
by VE3WMB on May 27, 2004 Mail this to a friend!
I have one of these routers and my problems are simliar to N7UQA with big chunks of 40M and 20 virtually unusable due to S6 to S9 frying noise. I had intended one day to get serious about trying to figure out the source of this problem but it appears that you may have done it for me.

I took my FT-817 with a whip antenna and tuned it to 14.050 MHZ where I was hearing what I would classify as my typical noise problem and when I walked over to the Linksys the S meter on the rig went S+, meaning full scale. Likely this garbage is also getting radiated by the unshielded CAT-5 cable that I have in my office as well.

The next step is to try this with my permanent setup, verify that I am receiving noise and power down the Linksys to
see if it goes away, which I am sure it will.

Thanks for posting this article ... you made my day.

Michael VE3WMB

P.S. Looks like it might be time to throw this piece of junk in the garbage and buy a Netgear router!
 
RFI Complaint Against Linksys  
by K8SWL on May 27, 2004 Mail this to a friend!

I've been using the same router for about 2 years. I had RFI all over the spectrum, but it was easily eliminated. First I would the power lead around a split ferrite core right at the end where it plugs into the router. That eliminated about 80% of the noise. Step two was to quit using the walwart and powering it by a good reguated, grounded power supply. Now total silence.
 
RE: RFI Complaint Against Linksys  
by K8LEA on May 27, 2004 Mail this to a friend!
Hey Jared....

(They'll let anybody in here....)

No problems with either a BEFSR41 or the newer "G" router + WAP, but I am seeing occasional hash on 450 that appears to be from the WAP. Not consistent - maybe something is changing channels - but it's there.

Originally I put the WAP down in the family room, and couldn't use my TH-77A down there anymore. When I moved it upstairs, the problem ended in the family room and began in the office.... (Can't think of the "name" of the WAP - it is Linksys, though.)

I replaced the "B" material with "G" a while back with no change in that problem.

I don't see any noise problems with the routers, though. (All VHF, really.)

Stu K8LEA
 
RFI Complaint Against Linksys  
by KF3EG on May 27, 2004 Mail this to a friend!
I had problems with the Linksys router, white noise on 3 HF bands.
My other computer is 15 feet from my shack computer, so what I did was took 50 feet of Cat5 cable and coiled it up like you do for a choke at the base of a antenna. Then I put it under my desk, the other thing I did was used a different power supply, other than a wall wart.
This router was supplied by my service provider and after talking to them last week I am going to switch to Netgear and give them the Linksys back.
Due to the fact that when I key up a 2 meter rig or hand held anywhere near my house it kicks the computers off line and I have to kill power to the linksys and reboot it.
Maybe Linksys is made by a sub company of MFJ, acts like it.
73
Jim
 
RFI Complaint Against Linksys  
by K3JGT on May 27, 2004 Mail this to a friend!
Before officially going on record, I need to run a few tests... But essentially I wasn't able to use my 2 meter handheld with 15' of the wireless router.

Jim
 
RE: RFI Complaint Against Linksys  
by K2WH on May 27, 2004 Mail this to a friend!
Ya know, you guys have to stop using computers to run your lives. My paper log only causing interference with available desk space. My real computer, the Radio Shack Color computer with a 1.7mhz 8080 really doesn't cause any interference.

Why anyone would need a router in their own home is beyond me. Are we too busy? One computer per household is enough. Wait your turn.

K2WH
 
RFI Complaint Against Linksys  
by W7XLR on May 27, 2004 Mail this to a friend!
Have a BEFSR11 makes noise on 6m during any activity, but it's only 3' away. Will try some foil/paint inside case sometime...........
 
RFI Complaint Against Linksys  
by KD7KYU on May 27, 2004 Mail this to a friend!

For those of you who would like more information about modems that put out RFI and related problems copy and paste the following link into your web browser then click on any thread for details:


http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&threadm=dHMR5.24816%240X4.4542902%40typhoon.southeast.rr.com&rnum=1&p


If you prefer look at Google groups Radio and rec.
for an extensive amount of information as well.

Good topic of discussion here on Eham.net!
Thank You!
 
RE: RFI Complaint Against Linksys  
by BD on May 27, 2004 Mail this to a friend!
Honestly, who are you to tell me how many computers I should have in my own home?
 
RE: RFI Complaint Against Linksys  
by W3JJH on May 27, 2004 Mail this to a friend!
I too have had bad luck with Linksys equipment and RFI. That's one of the reasons I stick with Apple AirPorts or AirPort Extremes for 802.11.
 
RE: RFI Complaint Against Linksys  
by K2WH on May 27, 2004 Mail this to a friend!
From BD:

"Honestly, who are you to tell me how many computers I should have in my own home?"

I didn't expect you to be dishonest, but to answer your question, I am that I am.

K2WH
 
RFI Complaint Against Linksys  
by K0RFD on May 27, 2004 Mail this to a friend!
Jared, do you have any information to indicate that the FCC has actually ever gone after somebody for interference caused by Part 15 devices?
 
RE: RFI Complaint Against Linksys  
by W7COM on May 27, 2004 Mail this to a friend!
K2WH:

Ya know, there are some of us that use our radios for our computer hobbies.
 
RFI Complaint Against Linksys  
by KA5IWO on May 27, 2004 Mail this to a friend!
I have a Linksys router and have no RF problems here.
However last Christmas I got a Remington Titanium rechargeable razor. MAN AT THE RF IT PUTS OUT.
It sounds like a sweeping sound. I can here it from 80 meters to 2 meters. It also interferes with a tv with rabbit ears.

Kevin
KA5IWO
 
RFI Complaint Against Linksys  
by WB6SAT on May 28, 2004 Mail this to a friend!

I have my Linksys WRT54G wireless router sitting on a shelf about 6 inches away from the antenna port on my Icom 746Pro and have experienced no RFI at all.



Ed
 
RFI Complaint Against Linksys  
by KY1V on May 28, 2004 Mail this to a friend!
I have a Cisco PIX 515 that emits terrible RFI. I rewired my entire house with new CAT5 home runs to relocate the PIX to another part of the house (about 150 away) and have been able to reduce 97% of the RFI. I still have a few birdies on 20 meters, but now barely detectable.

I tried everything to eliminate the RFI, but the only true way to stop the RFI was to turn off the PIX. I also have a Cisco 3524-XL switch, a media converter for my fiber optic connection to the Internet and a 3COM wireless system and have no other interference problems other than the PIX (and my wife's jacuzzi).

 
RE: RFI Complaint Against Linksys  
by AC9TS on May 28, 2004 Mail this to a friend!
K2WH,

I have a router because I have internet access over cable. Both kids have computers to do homework, etc. I have a laptop in the shack to run my digi-modes which, I believe, you do too. I have another computer in the family room that my wife and I use for general computing/work/video editing/etc. We have a printer that is network compatable.

I suppose I could have simply supplied each computer with a 56K modem and a seperate phone line. This way, they could dial in to a central server to print something on the laser printer in the next room. Better yet, just buy a laser printer for every computer. I just thought having a router would be easier.

As far as waiting your turn, I'll bring that up the next time both kids are doing research for a report and typing it up. I'll add to the mix my wife working from the house so she can be home with the kids. I'll ask 2 of them to wait for third to finish. That's a great idea.............

Tom - AC9TS
 
RE: RFI Complaint Against Linksys  
by K3GI on May 28, 2004 Mail this to a friend!
K2WH had to be using a computer to post here. Is it the old Radio Shack? If so, kudos for keeping it up, going, and useful.

But seriously, ONLY ONE COMPUTER IN MY HOUSE? Perish the thought. I'm working three myself right now. The one I'm typing on, the one at the radio (to my left) connected to the packet cluster, and my laptop on the other desk (I forgot why it's on). Oh, I just couldn't live without them. Not to mention my wife has her own computer, so she doesn't have to come into my domain (the shack), as does my son (so we can be online at the same time). Oh did I mention I'm setting one up for my step-son who is staying with us? Must have computer, must have computer, must have....
 
RFI Complaint Against Linksys  
by WA2E on May 28, 2004 Mail this to a friend!
I have a Linksys WRT54G. Also had HF RFI from it. I haven't checked 2M although I have a scanner running in the shack. No problem there. Sounds like a quality control problem or different hardware versions may account for some having or not having problems. In my case the RFI came from the damn wallwart. Tried it on a regulated 2 amp supply I had lying around and voila, noise gone. I would say most of our problems come from inadaquate power supplies (read cheap crap).

Mike
WA2E
 
RFI Complaint Against Linksys  
by KD5ZNC on May 28, 2004 Mail this to a friend!
Yes!!

All over 440, 2 meters and some on HF I get noise from this Linksys! Either I'm on the internet or using the radio, can't do both at the same time anymore.
 
RE: RFI Complaint Against Linksys  
by K2WH on May 28, 2004 Mail this to a friend!
Man, judging from the replies here, most of you guys are ruled by your computers and the hectic life style you roped yourselves into. Sounds like the tail wagging the dog.

No I am not using the RS computer at home but writing this on a 486, 33mhz machine in the office. Windows 1.0, and 20 megs of ram with a 500 meg hard disk.

A little slow but it works. I guess I have been in the woods too long but, multiple computers, while probably nice to have, seems like a bad idea.

MY Life:

I get up in the morning, pet the dog, kiss the wife (maybe do a little more), and have my coffee on the way to work. At work, I shuffle some papers around make a few phone calls to customers and oh yes, every now and then check on the 1 or 2 emails I may get a day.

When the day is done, get in the mobile, work some DX on the road, get home and make a big decision to go swim in the lake, go to a movie in town, go fishing or put to sea in the sailboat. Decisions, decisions.

Somehow, this sounds to be a whole lot better living then being tied to computers all the time. To each his own.

K2WH


 
RFI Complaint Against Linksys  
by K0DG on May 28, 2004 Mail this to a friend!
K2WH ....

Move over, buddy .... I'm on my way!!!

:-)
 
RFI Complaint Against Linksys  
by K0DG on May 28, 2004 Mail this to a friend!
PS To all ...

I use one of those Linksys hubs and a WRT54G router (or something like that) to tie five or six computers together in the shack.

I still have my original Mark II computer (or was it a Mark V?) that I built from a Radio Electronics article back about '74 with an 8008 processor, 1K of static memory, and 4 parallel ports, but I couldn't find a network card for it anywhere. I used to keep it busy running my CW key and TTY test signals in years gone by. Haven't fired it up now for about 20 years, though ... Maybe one of these days ...

Configuration now is a 166 MHz Packard Bell Pentium, 300 MHz IBM Thinkpad, Homebuilt Athlon 1+ GHz, Hewlett Packard 2 GHz, Fujitsu 2 GHz laptop, and miscellaneous friend's laptops, etc., when they come to visit and/or operate contests and such.

The desktop machines are wired together with CAT5 cable, and the laptops all use the WIFI interface. The internet hookup is via Cox Cable wideband, shared by all.

In operation, the Athlon usually runs SATSCAPE continually to an LCD Flat Panel Display. I love this program, and it is usually the most impressive part of the station when demonstrating operations to visitors (along with the colorful QSL card plastering the walls).

The HP machine runs Scott, N3FJP's logging and contest software, which has a built-in interface to the packet cluster via the internet, a really nice feature when just browsing around the bands and leisurely whacking out a little DX, and, of course, watching for 6 meter openings. We also use Writelog for some multi-op contests, using one machine as the server, and several others for logging, keeping track of scores and sections worked, and spotting by a second operator.

The HP also runs the Yaesu rotor using "LP Rotor" to turn a Tennadyne T-12 Log Periodic at 55 feet, and interfaces to the FT-1000MP to provide automatic logging of band and frequency with Scott's program.

Scotts program is also interfaced to the FT-847, primarily for 6 meter work, but also in combination with the home made FODTRAK controller to a Yaesu AZ-EL rotor driving the satellite antenna array (The Satscape program also automatically accounts for doppler shift on the FT-847).

The FT-100 and TS-930 are occasionally used in "old fashioned" mode for spotting during contests, or once in a while just to remind me what it was like in the olden times hamming without computers (external computers, I should say).

The Packard Bell 166 is used to back up the critical files on the other machines, and sometimes the TV card is used to watch TV on the monitor when something exceptional is going on (like the 9/11 attack).

The laptops are WIFI, and let me keep in touch with my e-mail, E-Ham, research (like designing and constructing antennae), and E-Bay activities from anywhere in the house, which I do lots of times sitting on the couch with the XYL while she watches some dumb thing on the cable ... It at least gets me out of the shack and physically closer to her once in a while, which cuts down on her QRM about never crawling up out of the basement.

All the "stuff" is connected to a single-point ground system from a single copper entrance panel in the utility room, and so far, I've had absolutely no RFI from any of the equipment, or at least not a detectable amount.

The point of all this is simply to illustrate how ingrained computer usage has become in my shack, anyway, and I can't for the life of me fathom how I used to operate Navy Mars TTY in the old days with a TS-520, GLA-1000, several miscellaneous two-meter rigs, and a couple of ASR-28's, 15's, and various tape readers and punches, etc. Back about '78 I built my first "real" computer, a Heathkit H89 "All-in-one" unit, as you old timers might recall, and within 6 months I had programmed all the manual TTY stuff out of existence ... computers have been an integral part of the shack ever since.

But the sailboating and fishing sounds like a pretty good deal, too ... :-)
 
RE: RFI Complaint Against Linksys  
by AB2MH on May 28, 2004 Mail this to a friend!
>>Ya know, you guys have to stop using computers to run your lives. My paper log only causing interference with available desk space. My real computer, the Radio Shack Color computer with a 1.7mhz 8080 really doesn't cause any interference.

Why anyone would need a router in their own home is beyond me. Are we too busy? One computer per household is enough. Wait your turn. <<

1. I have only one desktop PC that I use. However, I also have my notebook, and I can't haul my desktop outside. Hence, I need at least two connections. (The notebook is wireless, however, 802.11a/b dual band)

2. I have other devices that use my internet connection, namely a Cisco ATA-186 for Vonage VoIP and my TiVo. I don't know about you, but I love paying $15/month for local+long distance, and no one is making me give up my TiVo.

3. I have other people come over here with their laptops and connect wirelessly, for study sessions, or to do homework. We all can't share one computer.

4. I hope you're joking, because if you aren't, it reflects the sad state of technical non-progress n the hobby.
 
RFI Complaint Against Linksys  
by N5XYO on May 28, 2004 Mail this to a friend!
I run a router, WiFI cards in 3 machines...all linksys....no RFI at all.
 
RFI Complaint Against Linksys  
by WA2EZE on May 28, 2004 Mail this to a friend!
The best retort to K2WH:

Tell the average ham he can only have --ONE-- radio.

He wants to use all different bands and modes?
Guess he'll have to sell each rig and purchase a new one with the proper capabilities for each band.....going portable?Sell the base and get an ht..at home?..Sell the ht,Buy another base,etc,etc....."waiting his turn"....

Next you'll be telling I can only own ONE caliber at a a time......
 
RE: RFI Complaint Against Linksys  
by K3GI on May 28, 2004 Mail this to a friend!
I think we need a symbol that shows when someone is posting "tongue-in-cheek."
 
RE: RFI Complaint Against Linksys  
by K2WH on May 28, 2004 Mail this to a friend!
Man, here we go. This is now a bragging session to see who has the most toys.

My phone bill, (a real one), is about $ 25.00 a month. No internet voice stuff or what is known as voip, I have no cell phone (never owned one), and only (1) HT. Big rigs, thats another matter I collect boat anchors and restore them.

My house has no air conditioning (don't need it), and I have well water. I live in a house on the lake, have a bunch of cats, dogs and rabbits and make a ton of money at my job. Oh, my neighbor has chickens and we cannot feed the black bears. I am not kidding either this is the real world. The biggest thing that happens around here is when the bear eats the chickens.

As to the state of technological advancement, I'm right up there but, computers are not radios. Computers are an accessory that can be used to enhance ham radio by well..... ummm - keeping a log (oohh), watch a fake satellite go in a circle around a fake earth (nice graphics), but they really are just a golly gee whiz thingy.

So, you guys can just go on and strut your stuff and brag about all the chips you got in your stuff and the 3-4 letter made up words for the stuff. Me, I'm gonna go cut the grass and then make myself a Margarita.

K2WH

 
RE: RFI Complaint Against Linksys  
by K8LEA on May 28, 2004 Mail this to a friend!
I'm an Independent Computer Consultant....

I need a network (and more than one machine) to test network issues for clients - software, hardware, etc.

I use a wireless network for my notebook so I can test wireless networks for clients, and (if you don't believe that [grin]) for convenience in using the two notebooks in the house.

There's also a desktop for the kid. When she was little, it was there so I could use _mine_ when work needed to be done and she wanted to play a game. Now she uses it for homework and AOL. There's no way we could share....

(I brought home a brand new 486 one evening and got everything loaded on it when the HD croaked. The kid wanted to run "Barbie" for a half-hour before I could do any diagnostics....)

She also has one of my old notebooks (wirelessly linked to my network) for when she doesn't feel like getting out of bed to check her e-mail. WTH, it's got a bad MB, and will croak unexpectedly, so why not have a little fun with it.

I also have a junk Pentium in the back room for testing boards & such (it's on the network too 'cause it's running Win98 and everything of consequence is running XP now), and a 386SX-25 notebook with Win3.1 on it, just in case somebody calls. (A former employee of my #1 client called from home one night with a Win3.1 problem. "Wait a minute while I fire up my Windows 3 machine" _really_ impressed him.

They're here, we use 'em. I actually get paid for it....

I relax by punching holes in paper targets or yakking on 147.000.

Stu.

(Or hanging around here....)
 
RE: RFI Complaint Against Linksys  
by K6TLA on May 28, 2004 Mail this to a friend!
I've had the BEFR-41 running in the shack for about 3 1/2 years now along with a 24 port switch also from Linksys. Several machines are fed w/ Cat 5 from the router and the other two are wireless. Add a print server and an NDAS hard disk to that, no problems at all. Now add a Samlex switching power supply or the Radio Shack equivalent to the mix and there is junk everywhere.

73 de K6TLA
 
RE: RFI Complaint Against Linksys  
by DUPANOUS on May 28, 2004 Mail this to a friend!
Linksys equipment caused too many RFI problems for me too. I've switched to a Netgear router and all is well.

Linksys stuff is absolute garbage.
 
RFI Complaint Against Linksys  
by WB2GOF on May 28, 2004 Mail this to a friend!
I have both a Linksys BEFSR41 & a Linksys WAP. The only signals I am detecting are coming from the expected 2.4 GHz range. No problems here.
 
RE: RFI Complaint Against Linksys  
by K4JSR on May 28, 2004 Mail this to a friend!
K2WH IS A DUDE!


:-D


 
Hey, It's About Ham Radio Stupid!  
by K2WH on May 28, 2004 Mail this to a friend!
Yeah, just look at this posting, it is all about computers, routers, printers and other stuff I don't even recognize. I thought this was a ham radio forum.

If your blender interfered with a rig would one start a post about blenders? Then we would get a list of all the electrical kitchen items people have to see who has the most.

Let's see, my 2nd Margarita. Come on over here baby!

K2WH

 
RE: Hey, It's About Ham Radio Stupid!  
by NE1Z on May 28, 2004 Mail this to a friend!
You got to love it.. so angry about progress

Computers & radios aren't related? Is that why he is banging on a keyboard telling everyone else to keep it to ham radio ONLY?

Seems to me that this attitude is represented by too many hams who doom us all to a cheap demise.

2.4GHz stuff rocks & thanks for pointing out RFI isn't related to radio either, if it comes from a computer.

You're right, How stupid...
 
RFI Complaint Against Linksys  
by K9FTB on May 28, 2004 Mail this to a friend!
Jared - by golly you've solved it for me. I have the same router plus an 8 port switch as well. All the CAT 5E cables were disconnected, including the 8 port switch, and I had the QRM. Unplugged the router and viola!!

I've driven myself crazy for 2 years with several HTs and the egg frying QRM especially on 2 meters.

So I guess, the solution is buy a Cisco professional router? Better get a home equity loan for that piece of gear!

I might also add the router has the latest firmware update (can't recall the version from the Linksys website).

Thanks for pointing this out.

73's,
Dean, K9FTB
Fairport, NY
 
RFI Complaint Against Linksys  
by KD7WLM on May 28, 2004 Mail this to a friend!
This topic is totally applicable to the hobby and has every right to be posted and discussed. Already we have seen it help others. I don't have a router, nor do I operate on HF, but I still enjoyed it.

If K2WH had his way we would all be like him, sitting around with grass cuttings on our shoes getting slowly bombed and deriding others for enjoying this diverse hobby in their own way.

K2WH, Your individuality is what makes you great. Let others enjoy their life the way you enjoy yours, by choosing it themselves.
 
RE: RFI Complaint Against Linksys  
by KD5JFT on May 29, 2004 Mail this to a friend!
Uh Oh, I have a Linksys BEFW11S4 WAP/4 Port Switch & Router, a Linksys EFSP42 2 Port Print Server/4 Port Switch, a Linksys cable modem, two PDA's, two functional computers (one homemade, one laptop), three non-functional computers (thinking that if I combine the parts, I can get one working), and NO RFI!!! Just lucky I guess. I also have six radios (two are handhelds). I only have a tech license so tx/rx is 50Mhz and above, I can only listen on HF. I have no problems with 6M, 2M, or 70cm on all modes. Of course this is just in my shack. My son also has a computer (and a radio). My wife also has a computer. Yes, they are all networked (all but one wirelessly (some of the other stuff predates WiFi networking). Computers and radios are my hobbies. My work involves driving fast and convincing bad guys that if I shoot them it will hurt real bad. I like to relax with radios and computers at home. At the lake, I like to relax with radios and a fishing pole. I do take a computer to watch dvd's in case it rains (hi hi). Easier to cart around than a tv. From the nature of this thread, I guess I have too many computers, radios, and fishing poles. Guess I just need to get rid of all of my hobbies, lest they interfere with each other.

Wonder if I hold the fishing pole near my antenna while crossing my eyes, I can get a few more db's.

Sorry for the waste of bandwidth.
 
RFI Complaint Against Linksys  
by KY1V on May 29, 2004 Mail this to a friend!
K2WH's Life:

I get up in the morning, pet the dog, kiss the wife (maybe do a little more), and have my coffee on the way to work. At work, I shuffle some papers around make a few phone calls to customers and oh yes, every now and then check on the 1 or 2 emails I may get a day.

When the day is done, get in the mobile, work some DX on the road, get home and make a big decision to go swim in the lake, go to a movie in town, go fishing or put to sea in the sailboat. Decisions, decisions.

Somehow, this sounds to be a whole lot better living then being tied to computers all the time. To each his own.
----------------------------------

Nambaba's Life

He gets up in the morning, pets his lion, kisses his wives (perhaps does a little more), drinks some water on his way to work. He throws a few spears, skins a few animals and checks on a few traps he has around the camp.

When the day is done he walks back to camp, stops to look at a beautiful sunset, enjoys the sound of the wild and takes a moment to take a deep breath and think about how peaceful his life has been. Decisions, decisions.

Somehow, this sounds to be a whole lot better living then being tied to lawn mower all the time. To each his own.
----------------------------------

My Life:

I get up in the morning, I kiss my wife (maybe a little more), I pet the cat, and I have a glass of ice water. I don't have to go to work because I run a web hosting company remotely from home using several computers networked together and routed over my fiber optic connection to the Internet.

Because I don't leave the house, I get to bounce each one of my children on my knee each day while a take a few phone calls and answer a few emails. Heck, ocasionally I will turn on one of the radios and make a few contacts. Decisions, Decisions.

When the day is done, I walk out of the office into the kitchen, add a little extra spice to whatever my wife is cooking, give her a kiss and pick up whichever kid is clinging to my leg at the moment.

I may go play hockey or just sit out by the fish pond and relax as I watch the sun set across my beautiful yard that someone else mowed early that day. Once a year I will take a young ham on a DXpedition just to make his dream come true.

Somehow, this sounds to be a whole lot better living then being tied to a car in traffic all the time or mowing grass. To each his own.
-------------------------------

I think my point is quite clear.

David, KY1V

 
RE: RFI Complaint Against Linksys  
by N3ZKP on May 29, 2004 Mail this to a friend!
K2WH:

I agree with you. I have one G4 Mac in the shack and that's it. Do packet, check eMail and all the rest on the one machine.

With all due respect to the rest of you, do you use computers to help you play radio or have a radio attached to give you an excuse to play computers? :)

Lon
 
RE: RFI Complaint Against Linksys  
by AB2MH on May 29, 2004 Mail this to a friend!
>>My phone bill, (a real one), is about $ 25.00 a month. No internet voice stuff or what is known as voip, I have no cell phone (never owned one), and only (1) HT. Big rigs, thats another matter I collect boat anchors and restore them. <<

I would be hard pressed to find phone service that cheap here in NYC. With Vonage, my total cost is about $16-$17 including all the taxes and all features including Caller ID. Caller ID is a necessity, because despite all the best efforts of lawmakers, I still get telemarketing calls. Therefore, if the phone rings, I need to know exactly who it is or I don't answer. Local phone service in NYC with caller ID cost me around $40/month with Verizon.

Also, I call my mom in Florida pretty often. Therefore I need long distance. I get 500 minutes of US and Canada long distance included with my Vonage IP phone service.


>>My house has no air conditioning (don't need it), and I have well water. I live in a house on the lake, have a bunch of cats, dogs and rabbits and make a ton of money at my job. Oh, my neighbor has chickens and we cannot feed the black bears. I am not kidding either this is the real world. The biggest thing that happens around here is when the bear eats the chickens. <<

My apartment doesn't need air conditioning, but I have two window units for when it gets hot outside. I make a decent living (I wouldn't say I make a ton of money yet), however I go to college. I need to. You have no idea how much the computer is used in the classroom, for homework, and for communicating with professors and students you have to work with. In fact, all students are required to have a laptop.

Therefore, my needs are different to yours. So, it's not really right to say that everyone should line up at one computer, because not everyone has the luxury of having nothing to worry about. Some of us are getting there, but most of us aren't there yet.


>>As to the state of technological advancement, I'm right up there but, computers are not radios. Computers are an accessory that can be used to enhance ham radio by well..... ummm - keeping a log (oohh), watch a fake satellite go in a circle around a fake earth (nice graphics), but they really are just a golly gee whiz thingy. <<

Wow. No wonder hams are stuck in ancient history.

You may not realize it but computers are pretty much a part of everything now. Forget keeping logs, forget satellite tracking apps.

What about propagation forecasting. What about automated contesting. What about PSK31, packet radio or any of the digital modes? What about going beyond those? We have part 15 wi-fi hotspots (on ham spectrum) everywhere yet I'm yet to see an organized effort for hams to have a wireless high speed computer network of their own.

Engineering courses in school these days revolve around computers and computer programming. In my school everyone is required to take at least one computer programming class, and many majors have to have at least an understanding of object oriented programming in C++.

 
RE: RFI Complaint Against Linksys  
by AB2MH on May 29, 2004 Mail this to a friend!
>>With all due respect to the rest of you, do you use computers to help you play radio or have a radio attached to give you an excuse to play computers? :)<<


Why can't we do both?

I see nothing wrong with playing radio AND computer.
 
RE: Hey, It's About Ham Radio Stupid!  
by AB2MH on May 29, 2004 Mail this to a friend!
>>Yeah, just look at this posting, it is all about computers, routers, printers and other stuff I don't even recognize. I thought this was a ham radio forum.

If your blender interfered with a rig would one start a post about blenders? Then we would get a list of all the electrical kitchen items people have to see who has the most.

Let's see, my 2nd Margarita. Come on over here baby! <<

Oh, but this is relevant to radio. Directly relevant, in fact.

Most 802.11b equipment can operate on the ham bands, stock. If I am to use this Linksys router to operate as a piece of ham gear I want to make sure it interferes as minimally as possible with everything else.
 
RE: Hey, It's About Ham Radio Stupid!  
by K2WH on May 29, 2004 Mail this to a friend!
Hey, to each his own. Lots of what I am saying is "Tongue in Cheek" as another poster surmised. I love computers and do use them extensively for ham radio (research. However, I do not and will not connect a computer to an amateur rig except,,, except, for the digital modes and technically, thats only the sound card, no control functions. Oh the Radio Shack computer bit the dust a long time ago.

But, if you are a young ham posting in this thread or just reading this, you will find out as you age (I'm 54), how irrelevant and how un-important most of this stuff is or was in your life. If you let computers dominate your ham radio activities, then eventually, ham radio will become exclusively internet radio, BPL will dominate the air waves and HF radio will be gone. I truly believe this. Perhaps the ones with all the computer gear will come out ahead when the demise of ham radio comes. People like me, who hold onto the past will be the losers.

Oh, btw, I don't drink Margaritas (although I could learn), I do love however, Daquiris and other slushy drinks. Ain't life grand. I said to the wife the other day, sweetheart, I think that my life was probably lengthened by at least 10 years being married to you. She just shook her head and said "Say it ain't so".

K2WH
 
RE: Hey, It's About Ham Radio Stupid!  
by NE1Z on May 29, 2004 Mail this to a friend!
If I were a youngster reading this subject, I'd stick with my computer geek friends who use processors at higher frequencies than 99.999% of ham stations & give hams like K2WH the finger driving down the freeway for not knowing better.

Everyone knows K2WH is on his license plate!
 
RE: Hey, It's About Ham Radio Stupid!  
by K2WH on May 29, 2004 Mail this to a friend!
Everyone thinks they know better. See, NE1Z starts this stuff "the finger". Can't be civil and have fun. And btw, I would expect the youth of today to give me the finger for my comments. Yes I would and it would mean nothing. It would just show their immaturity and how little they know.

K2WH
 
RE: Hey, It's About Ham Radio Stupid!  
by K2WH on May 29, 2004 Mail this to a friend!
Ya want to know whats wrong with todays world, we forgot how to laugh. Laugh with other and laugh at ourselves. And......... I am a dude.

Hey, anybody know the ingredients to mixe a Cosmopolitan?

K2WH
 
RE: Hey, It's About Ham Radio Stupid!  
by NE1Z on May 30, 2004 Mail this to a friend!
My comments were tongue in cheek too. See how it feels?
 
RE: Hey, It's About Ham Radio Stupid!  
by K2WH on May 30, 2004 Mail this to a friend!
OK, point taken

K2WH
 
RFI, Linksys, Part 15  
by KQ6XA on May 30, 2004 Mail this to a friend!
A device can be within technical compliance with Part 15 emission limits of FCC rules, and easily be heard several blocks away on a ham receiver.

Bonnie KQ6XA
 
RE: RFI, Linksys, Part 15  
by K2WH on May 30, 2004 Mail this to a friend!
That's why BPL needs to be defeated at all costs. BPL right now as we speak can be in compliance within part 15 radiation limits and still wreak havoc on the ham bands.

All you guys experiencing interference from your equipment right now, imagine the same thing not just in your shack but everywhere you go.

BPL needs to be defeated! Support ARRL with a check.

K2WH
 
RE: RFI, Linksys, Part 15  
by NE1Z on May 30, 2004 Mail this to a friend!
"BPL needs to be defeated! Support ARRL with a check."

There you go with the tongue in cheek stuff again. BPL is here & was here so there is no 'defeat' possible.

I'd send a check only if there was credible defense effort. I don't see it & others who have pointed things out have been attacked for doing so. You can't be 100% against anything & never offer alternatives!

I know you resent technology but it is shot, get over & move on. Move to support wireless data without the overhead of callsigns & content. It's called 802.11 & such!
 
RFI Complaint Against Linksys  
by KC4GMY on May 31, 2004 Mail this to a friend!
I bought a Linksys WET111 wireless bridge which was defective right out of the box. Coming to this conclusion was even more frustrating as I talked with three different persons from Bombay who, in their broken English, finally exhausted their perfunctory lists. Never again will I deal with Linksys!

I do have a Netgear access point which works flawlessly and has no RF noise. I should have bought the ME101 Netgear wireless bridge...

Now for those who are against computers in the shack: Check out the latest eHam survey. (Best Ham Shack Accessory)
 
RFI Complaint Against Linksys  
by W4LGH on May 31, 2004 Mail this to a friend!
Interesting...as I sell Linksys routers everyday and have never had any RFI problems with them. Most of them are of the wireless models, including in my own shack. I did have the "ege frying type noise, but traced it back to the Westell DSL modem, and the freq was in the 40 meter band, not 2meters. I have not sent and emails to Westell as of yet, and figured they wan't do anything about it, so I built a screened cage and put the modem in it. Helped greatly, but did not totally cure the issue.

73 de W4LGH - Alan
www.w4lgh.com
 
RE: RFI Complaint Against Linksys  
by KG4VPV on May 31, 2004 Mail this to a friend!
Same problem on two meters for me. Especially around my favorite repeater frequency.
 
RFI Complaint Against Linksys  
by N7CAV on June 1, 2004 Mail this to a friend!
I still don't understand how they were licensed to use amateur freq's on WAP's . . . Hmmm . . .
 
RFI Complaint Against Linksys  
by WA4ET on June 1, 2004 Mail this to a friend!
I have both Linksys wirless B & G router hubs, as well as a cable moden and have expireanced NO problems with them.

maybe these are isolated events?

DAvid
 
RE: RFI Complaint Against Linksys  
by K4JSR on June 1, 2004 Mail this to a friend!
HEY K9FTB;
Throw away all of that computer garbage, close up
your house and sell it, move back to Georgia and take
all of my harrassment like a man!!!
I might even split a Varsity Hot Dog with ya!
WH, FTB is the *DUDE* that got me back into ham radio about 34 years ago. He is now retired, like me,
and deserves to come down South, grab the bull by the tail and face the music squarely!!! ;-P
Besides that, Dean is big, like me, and a worthy Belly
Bucking competitor!!
73 Cal K4JSR

PS. WH, give up on those Margaritas! Have a real man's drink; Two shots Tequila, one shot prune juice, and one shot of Milk of Magnesia. Mixed and
stirred with ice. It is called a "Mexican Stand-off"! ;-)

 
RE: RFI Complaint Against Linksys  
by W6TH on June 1, 2004 Mail this to a friend!
Geez, no problem here as my RS color 3 128 is going strong. No RFI and more speed than what I need.

NO! It is not for sale.

.:
 
Did you look at the wall wart?  
by KE4PJW on June 2, 2004 Mail this to a friend!
The power supplies that come with most of Linksys's equipment are switching supplies. I would suspect they are not of the quality you would like to have in an environment with radio equipment. Try running it off of a linear supply or battery.

BTW: The person having trouble with the WET11, download the latest firmware. It fixes many problems.
 
RE: Did you look at the wall wart?  
by AB2MH on June 2, 2004 Mail this to a friend!
>>The power supplies that come with most of Linksys's equipment are switching supplies. I would suspect they are not of the quality you would like to have in an environment with radio equipment. Try running it off of a linear supply or battery. <<

Actually that's true of many different types of computer gear these days. The wall warts are all very light, semiconductor based switching power supplies.

 
RFI Complaint Against Linksys  
by WB2TPS on June 2, 2004 Mail this to a friend!
I have been using a BEFSR41 and WAP11 for about four years.
There are two desktops on CAT-5 (one connected to the rig for logging and contesting) and two laptops on the WAN.
I run a KW from 160 to 10 Meters and 100W on 6&2 M SSB/CW, also FM on 2 & 440.
I have never had RFI into or out of the network.
The network physical arraingement was recently changed and preliminary tests indicate no problems with longer CAT-5 cable.

Jim
 
RFI Complaint Against Linksys  
by AB5WG on June 2, 2004 Mail this to a friend!
I had one of these beasts, really nasty on the RFI. Called Linksys (now owned by Cisco) and got nowhere with customer service. Sent the box to the ARRL for emissions testing (conducted emissions is all they could test)and it passed! Problem is emitted RFI radiation, not conducted. Trashed mine. Best bet is to go to the computer store and get the sales clerk to power up several different models while you listen to it with a hand held SW scanner. I did this and selected a NetGear router, no emission problems from it. All quiet in the HF spectrum now.

Ron, AB5WG
 
RFI Complaint Against Linksys  
by W9DZ on June 3, 2004 Mail this to a friend!
I've had one of the BEFSR41's for a couple years and have never really noticed any RFI. However, all my antennas are coax fed and at least 65'from the house.

<Why anyone would need a router in their own home is beyond me.>

I would have a router even if I only had one computer. Most are NAT (Network Address Translation)boxes which make your PC invisible to the internet. They can also be set to ignore attempts to ping your IP address adding to the invisibility. While not as fancy as a true hardware firewall they do the job. BTW, Linksys is owned by Cisco.
 
RFI Complaint Against Linksys  
by YN2EJG on June 3, 2004 Mail this to a friend!
I had a similar RFI problem with my Linksys 2.4 Ghz router. There were birdies up and down the 20 mtr band.

I then changed the CAT-5 cable that connects the router to the card in my computer with a CAT-5 "shielded" cable. The RFI totally disappeared. I suggest you look in your local computer stores for shielded CAT-5 cables.

73
ed
w5gcx
 
RFI Complaint Against Linksys  
by K9FTB on June 4, 2004 Mail this to a friend!
Well, I purchased a Netgear router and removed my Linksys router / switch and outboard switch. Viola! All RFI is gone on both VHF and HF.

Dean, K9FTB
 
RFI Complaint Against Linksys  
by NL7GB on June 4, 2004 Mail this to a friend!
What a bunch of characters! You manage to put drama, product reviews, humor, political action statements, RF and electrical engineering, the philosophy of life, modding info, a pi$$ing contest, and a small war into a thread about LeakySys. A terrific read! Thanks for the edutainment.

Obligatory contest entries follow.

COMPUTER CONTEST
First computer built: IMSAI 8080, 1978
Fastest computer built: Athlon-64 2200+, 2004
Total computers built: >60
Current computer inventory: 31 units
Working computer inventory: 26 units
Networking prowess: 3000' Cat 5 installed to approx 40 drops, 52 switched ports available, 2 wireless routers.
I win first place!

HAM CONTEST
1 Drake SW-1 receiver
Amateur License: Expired.
I come in dead last!
 
RE: RFI Complaint Against Linksys  
by K8DXX on June 5, 2004 Mail this to a friend!
N6KEK,

Could you describe your 6 meter spurs and what you traced them to? At or near my QTH (even on an FT 817 sitting in the back yard, I have spurs/birdies, whatever across the CW/SSB portion of 6. I am about 25 miles away from local TV stations (used to be a problem). We have 4 Dells in the house, 3 desktops and 1 laptop. We have cable internet and use an SMC 802.11B wireless router. The spurs have been here at least a few years (and many PCs).

Thanks and 73.

Bill / K8DXX
 
RFI Complaint Against Linksys  
by K7NA on June 5, 2004 Mail this to a friend!
I recently installed a Dlink wired router for my high speed cable internet connection and I have noticed interfering carriers across the six meter band. Through a process of elimination, I traced the interference to my Dlink router in my house. Removing the Cat-5 cables seemed to make no difference in the noise. Only when the unit was disconnected from power did the noise disappear.
After reading this thread and specifically comments by KZ1X, I purchased a Netgear RP614 wired, four-port router and placed it into service. The multiplicity of empty carriers across the 6-meter band continued and were traced to the router. It was returned to the store where it was purchased.
A saleman told me there were two metal encased wired, four-port routers available: a Netgear RF114 and a Linksys NRO41. The Netgear unit does not seem to be available locally but Fry's Electronics has a supply of the Linksys metal encased routers. I am at a loss to decide how to proceed. I ask KZ1X and others: which Netgear model are you using? Would the metal-encased Linksys perform as well? Is there a well engineered unit that is silent on the 6-meter band? I'm not concerned about interference on other bands-----only 6-meters for now. Suggestions are much appreciated. And yes, I did try using ferrites on the various cables etc etc to no avail.

Vince K7NA
 
RFI Complaint Against Linksys  
by K7NA on June 5, 2004 Mail this to a friend!
I recently installed a Dlink wired router for my high speed cable internet connection and I have noticed interfering carriers across the six meter band. Through a process of elimination, I traced the interference to my Dlink router in my house. Removing the Cat-5 cables seemed to make no difference in the noise. Only when the unit was disconnected from power did the noise disappear.
After reading this thread and specifically comments by KZ1X, I purchased a Netgear RP614 wired, four-port router and placed it into service. The multiplicity of empty carriers across the 6-meter band continued and were traced to the router. It was returned to the store where it was purchased.
A saleman told me there were two metal encased wired, four-port routers available: a Netgear RF114 and a Linksys NRO41. The Netgear unit does not seem to be available locally but Fry's Electronics has a supply of the Linksys metal encased routers. I am at a loss to decide how to proceed. I ask KZ1X and others: which Netgear model are you using? Would the metal-encased Linksys perform as well? Is there a well engineered unit that is silent on the 6-meter band? I'm not concerned about interference on other bands-----only 6-meters for now. Suggestions are much appreciated. And yes, I did try using ferrites on the various cables etc etc to no avail.

Vince K7NA
 
RFI Complaint Against Linksys  
by N9DWG on June 6, 2004 Mail this to a friend!
I have a Linksys BFSR41 router.
No problems with RFI on HF.
I did have some problems with 2 meters.
Noise on receive signals.
Antenna is about 60 feet away, radio in same room.
Putting a RF suppressor on the CAT5 cable to PC cured it. Suppressor is one of those split ferrite units about 1" long, snaps nicely over CAT5 cable.
 
RE: RFI Complaint Against Linksys  
by AC7RX on June 6, 2004 Mail this to a friend!
My Linksys router is an offender also. However it is a great broadband noise source for testing VHF/UHF directional antennas. No kidding, I use it for that all the time while constructing and testing yagis for the upper bands.

Its even better (its so broadband as a source!) than all those other offenders in the consumer product world: compact fluorescent lights, switching power supplies, laptops, montiors, leaking/ arcing power system insulators, etc. Its a mess out there! And here comes BPL...
 
RE: RFI Complaint Against Linksys  
by K7NA on June 7, 2004 Mail this to a friend!
I just won an Ebay auction for a metal encased Netgear RP-114 wired, four-port router. The refurbished unit cost me $14.95 plus shipping. The seller has multiple auctions currently underway for additional RP-114 refurbished units. When I receive it, I plan to compare it against my plastic encased D-Link router to ascertain whether my 6-meter interference situation improves. I hate spending the money but I've got to do something to get rid of all the carriers across the 6-meter band. I haven't even really checked 2-meters yet.
 
RE: RFI Complaint Against Linksys  
by K7NA on June 7, 2004 Mail this to a friend!
Just won an auction for a metal- encased Netgear RP-114 wired, four-port router which I will compare against the interference made by my plastic- encased D-Link Dl604. The price was only the price of the minimum bid plus shipping. The Ebay seller has several more of these refurbished units currently on auction, in case anyone is interested. Once I receive the unit, I will see if a metal encased router is significantly quieter on 6-meters than one housed in plastic. I am hoping it will be.
 
RFI Complaint Against Linksys  
by WA2JJH on June 8, 2004 Mail this to a friend!
lINKSYS is the cheapest WLAN gear around. To make matters worse they are sold at Radio-SCHLOCKS.

So they have a large share of the market for home networking.

Yup, they have a minimal of shielding. Glad to see somebody put in a complaint.
 
RFI Complaint Against Linksys  
by KC2LVC on June 8, 2004 Mail this to a friend!
I have that same model, the BEFSR41, and have had it for a few years now. I have alot of RFI issues with it. All across 2m and 440. Even when in the other room with my HT, it's still a problem. I also thought it was the cat5 at first, since I only have regular cable and not shielded. But like you said, I have tested with no cat5 plugged in, and same deal.
 
RE: RFI Complaint Against Linksys  
by KC2MMI on June 13, 2004 Mail this to a friend!
K2WH-
<Why anyone would need a router in their own home is beyond me. Are we too busy? One computer per household is enough.>

Actually? I bought a router originally to use with ONE COMPUTER. The BEFSR41 is not just or simply a router, the lines and definitions blur these days. It also provides PPPoE to TCP/IP translation, which means you can plug it into a DSL bridge (also incorrectly called a "cable modem" or "dsl modem") and translate the phone company's DSL signal, which uses the PPPoE protocol around here, into a TCP/IP protocol that the computer uses.

If you are not running XP, your computer is unable to use PPPoE without running another software layer. The original PPPoE software distributed by Verizon and others, written by Wind River, was horribly buggy and it made NT systems crash under certain circumstances. So, in order to have a stable compter and get the miserable translation layer off my computer--I bought a mini-router.

As a side effect, most mini-routers will also provide NAT, network addess translation, which is a very effective security (firewall) tool, among other options. A mini-router today does a lot more than simply connecting multiple computers. Even if it happens to do that too.<G>

You sound like a matron of the 20's, asking why anyone would want more than one telephone in their house, and why on earth ANYONE would let anyone except the butler answer it when it rang. You may not need, want, or appreciate some of the uses for the new gizmos, but I'd bet you have more than one telephone and probably more than one TV in the house as well, right?<G>

And then, a surprising number of us work from home, and have a computer tied up, by itself, working by itself, while we're working on another one. Just like a two-car family, some folks need more than one. Be glad you don't. As Will Rogers might have said "The only good computer is a dead computer!" Especially some of the ones made by Linksys and sold as routers.<G>
 
RE: Did you look at the wall wart?  
by KC2MMI on June 13, 2004 Mail this to a friend!
Hi Ryan.
<Actually that's true of many different types of computer gear these days. The wall warts are all very light, semiconductor based switching power supplies. >

Maye on the new stuff, but on the BEFSR41 it was still a conventional wall wart with a transformer inside. That's a 5(?) year old design and at least in my case a 4-year old wall wart, not a new switching supply. I'd expect the transformer designs are still cheaper to buy so they won't be going away quite yet. Somebody, somewhere, is probably knocking them out of scrap metal in a low-tech factory in the 3rd world at prices that can't be beaten. That they waste gobs of power and sometimes start fires...that's what is called "not our problem" by the folks who need to sell them as cheap as they can.
 
RFI Complaint Against Linksys  
by W8NSI on October 11, 2004 Mail this to a friend!
I had one of those routers and had a lot of problems with it. I bought a new Linksys WRT54G 4 port + 802.11g wireless and have not had any problems with this one. I have two machines on CAT5 ethernet cables and two on wireless including the one I am using right now in the ham shack.
The router is located on the next floor above where I am sitting right now. It is causing no noise on HF or VHF for my installation.

73 de W8NSI Jim W8NSI BBS <telnet://rogueriver.tzo.com>
 
RFI Complaint Against Linksys  
by G6YFF on October 15, 2004 Mail this to a friend!
Not a router problem but a 10/100 hub from Linksys (Model EFAH05W). Much RFI from 20m up. Disconnecting power resolves the RFI so I do this when on HF.

I thought about painting the inside covers with aluminium paint - any other suggestions?

73 Graham...
 
RFI Complaint Against Linksys  
by JTHORN on March 19, 2005 Mail this to a friend!
I, too, recently discovered that my four-year old LinkSys BEFSR41 wired router is a RFI source. It serves four computers and a cable modem. I have isolated the source down to the router by selectivity removing the CAT5 cables to the computers and modem, turning off the computers, modem, printers, scanners, room lights, etc., and the RFI never disappears until the router is turned off. My receiver is a Kenwood R-5000 approximately ten feet across the room and I used a battery-power portable receiver to eliminate any other sources. As a long-time SWL, I first noticed the RFI on 11955 kHz. LinkSys’ tech support has been of no value in trying to resolve this problem. They always content that their product meets FCC’s Part 68. I noticed that their current product version is 3 and I assume that mine must be a 1, as its label doesn’t list a version number. Are there RFI complaints on the version 3’s or in other words did LinkSys fix the problem in versions 2 or 3?
 
RFI Complaint Against Linksys  
by C90 on April 27, 2005 Mail this to a friend!
Hi, i am from the UK and have been suffering very bad noise/interference on most of the HF bands especially 10m. it started just before xmas and is there every day but can start and dissapear at different times. i have tried everything and i mean everything to try to find the cause and put an end to it. i know it is not coming from any equipment in my home because i have even switched the mains electricity off in the house and ran the radio from a battery. it was still there just the same. i do not have a router but i know the neighbours do use one. after reading these messages i am convinced this is also where the interference is coming from. if i stand outside the neighbours house with a handheld receiver the noise is bad. also if i point the recivers antenna towards their house it is also worse. i thought at first it was a tv set as i've heard plasma tv's cause this. the interference stops around 11 - 11.30pm probably when they switch off to go to bed. I understand there is no protection here in the uk from interference like this.
 
RE: RFI Complaint Against Linksys  
by CJ5 on August 11, 2005 Mail this to a friend!
Yeah, I am fed up with my LinkSys BEFSR1. It garbles up all my public safety digtal bands, and hangs my scanners at various times of the day. I've wrapped the entire router in aluminum foil, didn't help. I've, only been successful in unplugging the darned thing (vilently shakes fist at an imagined LinkSys), and that clears things up profoundly. I am tossing it after my NetGear arrives.
 
RE: RFI Complaint Against Linksys  
by CJ5 on August 11, 2005 Mail this to a friend!
Yeah, I am fed up with my LinkSys BEFSR1. It garbles up all my public safety digtal bands, and hangs my scanners at various times of the day. I've wrapped the entire router in aluminum foil, didn't help. I've, only been successful in unplugging the darned thing (vilently shakes fist at an imagined LinkSys), and that clears things up profoundly. I am tossing it after my NetGear arrives.
 
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