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10-20-09, 10:29 PM
I'm new to Bike Forums (2nd post) but have been lurking for a couple of months. There's so much good info here, I haven't needed to ask any (dumb!) questions.
I've got a Specialized Roubaix with a Specialized Speedzone Sport wireless computer, a Polar F55 HRM, and a Blackburn Flea light (used to have a NiteRider UltraFazer 3). You can probably guess where this is going...light interfering with computer (I've seen speeds of 89) and HRM (HR has been as high as 264!). These problems generally occur only when light is flashing. The LBS traded the NiteRider for a Blackburn Flea. I'm hoping that a different light will help. But, the thing the Flea may offer is the ability to mount it on the fork, even low on the fork. The mounting strap is clever and allows more mounting flexibility than most lights. Since all I want the light for is to be seen, this may move the source of dirty RF away from the computer and HRM. We'll see and I'll post results.
Now for a Question. When it's time to get a real computer, one that integrates computer and HRM functions, I'd like to stick with a model that operates at 2.4 Ghz to reduce interference problems with lights. I could go wired, but I'd like to see more about what can I do with wireless. I understand that several Cateye models, the Blackburn Neuro, NiteRider Rebels operate at 2.4 Ghz, which seems not to have the interference problem of analog wireless protocols. So, do the Sigma Rox, Garmin 305 or Polar CS400 operate at 2.4 Ghz? What are other computers that integrate computer and HRM functions and operate at 2.4 Ghz?
I've got a Specialized Roubaix with a Specialized Speedzone Sport wireless computer, a Polar F55 HRM, and a Blackburn Flea light (used to have a NiteRider UltraFazer 3). You can probably guess where this is going...light interfering with computer (I've seen speeds of 89) and HRM (HR has been as high as 264!). These problems generally occur only when light is flashing. The LBS traded the NiteRider for a Blackburn Flea. I'm hoping that a different light will help. But, the thing the Flea may offer is the ability to mount it on the fork, even low on the fork. The mounting strap is clever and allows more mounting flexibility than most lights. Since all I want the light for is to be seen, this may move the source of dirty RF away from the computer and HRM. We'll see and I'll post results.
Now for a Question. When it's time to get a real computer, one that integrates computer and HRM functions, I'd like to stick with a model that operates at 2.4 Ghz to reduce interference problems with lights. I could go wired, but I'd like to see more about what can I do with wireless. I understand that several Cateye models, the Blackburn Neuro, NiteRider Rebels operate at 2.4 Ghz, which seems not to have the interference problem of analog wireless protocols. So, do the Sigma Rox, Garmin 305 or Polar CS400 operate at 2.4 Ghz? What are other computers that integrate computer and HRM functions and operate at 2.4 Ghz?