Filzer db4LW and RFI
 

I recently bought a Filzer db4LW computer and went to install it yesterday. Apparently it's sensitive to radio frequency interference. I was installing it on my bike in the family room so I could watch football. Any time it was close to the TV (a large-screen Sony LCD) the computer was registering fast motion (something like 49mph). If only I could actually ride that fast on flat ground!

At any rate, I'll be returning it and getting something else. I just thought I'd mention the problem so others can avoid it.

Skip Montanaro

I've seen several people complain about the functionability of wireless units lately around here...

It's a great idea but honestly one that I'm surprised works at all. My luck, I'd buy one and join a group of riders and someone there would have the same unit.

I'm actually using one of the cheapo schwinn units that so many complain about and it works perfectly for me. Seems very accurate and has almost every function I wanted, and it was under $10 at walmart. Biggest problem I saw with installations was the wire ties eventually cut through the wire if you pull them too tight. I just used some pieces of rubber hose to protect the wire and all seems well.

Good luck with yours there...

I don't understand why interference from a television would be a problem unless you are going to put it on a trailer and pull it behind a bicycle. Please enlighten us on the technical aspects of how television RFI indicates that it will not work on the road.

It's not so much that it's a TV. I suspect like many other modern
televisions mine (a Sony Bravia) is more like a computer with a big
screen than a traditional TV. Computers are everywhere, in the cars
that whiz by or at the local *$s where you stop for your mochachino
after a ride, for instance. Also, the fact that it can't reject noise
from such a common source suggests to me that it's probably got other
flaws as well. My previous wireless bike computer, a Sigma Sport
BC-800, worked flawlessly for several years. The db4LW was
effectively broken out of the box.

Skip

The DB4LW will also suffer RFI from traffic loops. I've since stopped buying/using any of the Filzer wireless comps. The wired ones are 100% though.

Thanks to both of you. By traffic loops are you referring to the sensors in the pavement.