Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Electronics, Lighting, & Gadgets HRM, GPS, MP3, HID. Whether it's got an acronym or not, here's where you'll find discussions on all sorts of tools, toys and gadgets.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 01-11-13, 07:54 PM   #1
sbslider
Senior Member
Thread Starter
 
Join Date: Oct 2012
Location: Santa Barbara
Bikes: 2011 Surly Cross Check
Posts: 288
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Erroneous readings on wireless odometer

Long story short, my CM4.4A wireless odometer appears to pick up signals that cause it to read wheel revolutions that do not occur. I was parked outside a store today and saw my odometer reading between 80 and 110 mph. Is this typical of wireless odometers, do I have a lemon, are there ways to minimize or eliminate this pickup? On the third question, I am sure some appropriate filtering or possibly shielding would help, but modifying consumers electronics is typically not worth the time spent.

Anyway, curious to hear other folks experiences
sbslider is offline   Reply With Quote
Old 01-11-13, 08:10 PM   #2
Doohickie 
You gonna eat that?
 
Doohickie's Avatar
 
Join Date: Sep 2008
Location: Fort Worth, Texas Church of Hopeful Uncertainty
Bikes: 1966 Raleigh DL-1 Tourist, 1973 Schwinn Varsity, 1983 Raleigh Marathon, 1994 Nishiki Sport XRS
Posts: 14,356
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Yes. The anti-theft stuff just inside the door does that. Worse yet, LED bicycle lights also interfere with some of them.
__________________
I stop for people / whose right of way I honor / but not for no one.



Originally Posted by bragi "However, it's never a good idea to overgeneralize."
Doohickie is offline   Reply With Quote
Old 01-12-13, 08:17 AM   #3
mrt2you
Senior Member
 
Join Date: Mar 2010
Location: new berlin wi
Bikes: trek 720 multitrack hybred, 92 trek 2300, 2012 specialized roubaix
Posts: 147
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
check your batteries. when they get low you can get unusual readings, i know mine does.
mrt2you is offline   Reply With Quote
Old 01-12-13, 01:53 PM   #4
Doohickie 
You gonna eat that?
 
Doohickie's Avatar
 
Join Date: Sep 2008
Location: Fort Worth, Texas Church of Hopeful Uncertainty
Bikes: 1966 Raleigh DL-1 Tourist, 1973 Schwinn Varsity, 1983 Raleigh Marathon, 1994 Nishiki Sport XRS
Posts: 14,356
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
But some security systems operate on the same frequency and will mess with it.
__________________
I stop for people / whose right of way I honor / but not for no one.



Originally Posted by bragi "However, it's never a good idea to overgeneralize."
Doohickie is offline   Reply With Quote
Old 01-12-13, 02:26 PM   #5
sbslider
Senior Member
Thread Starter
 
Join Date: Oct 2012
Location: Santa Barbara
Bikes: 2011 Surly Cross Check
Posts: 288
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Kind of thinking it is not the battery, as it works fine most of the time, and is only 4 months old.
sbslider is offline   Reply With Quote
Old 01-12-13, 07:24 PM   #6
seeker333
__________
 
seeker333's Avatar
 
Join Date: Feb 2004
Bikes: yes!
Posts: 3,168
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 26 Post(s)
I had a wired Avocet in the 90s that would sporadically measure excessive speed, ruining the average speed and distance data. Only solution I found was to replace it. I've never had another like it.

I've had 2 or 3 generations of the Cateye Wireless, my current one is the Strada, never had a bit of trouble with these even using a Magicshine headlight mounted only inches away. When the batteries get weak on these, they simply quit working - no erroneous data / weirdness.
seeker333 is offline   Reply With Quote
Old 01-12-13, 09:10 PM   #7
Doohickie 
You gonna eat that?
 
Doohickie's Avatar
 
Join Date: Sep 2008
Location: Fort Worth, Texas Church of Hopeful Uncertainty
Bikes: 1966 Raleigh DL-1 Tourist, 1973 Schwinn Varsity, 1983 Raleigh Marathon, 1994 Nishiki Sport XRS
Posts: 14,356
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
The bike computer I saw that behaved funny with a light was one of the cheap ones.
__________________
I stop for people / whose right of way I honor / but not for no one.



Originally Posted by bragi "However, it's never a good idea to overgeneralize."
Doohickie is offline   Reply With Quote
Old 01-12-13, 11:38 PM   #8
sbslider
Senior Member
Thread Starter
 
Join Date: Oct 2012
Location: Santa Barbara
Bikes: 2011 Surly Cross Check
Posts: 288
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I have an LED headlight I always run on flash during the day and solid on at night, that does not upset the odometer.
sbslider is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 04:59 AM.