Originally Posted by
evblazer
Do you use lights or any other electronics on your handlebar? I found it very irritating for a while fighting with where to position my dinotte and it's wire/battery in respect to the sigma to make it work when I had the light on high and then on low.
I have a homemade headlight that hangs from the handlebar. The light is on the right side of the stem. The Sigma is on the left side of the stem.
Earlier Sigma cyclometers were analog. The BC-2006 sends its information in digital packets. It is supposed to be impervious to any normal magnetic interference. A UFO abduction might be another story.
I have lost my signal a few times. This was usually due to low battery, poor sensor alignment or fit, or the display unit came loose on its mount. Some folks use K-Y Jelly between their chest and the HRM sensor for better contact and wash it afterward.