Originally Posted by
subgrade
However, I have interference from trams (modern ones only, the old models do nothing) - when one is nearby, around 10 m or less, the speed drops to zero. Same happens also at some fixed points along my daily route (not intersections).
I used to get that with an old Sigma computer I had but I've not had it with the Cateye Micro. I'm guessing the modern trams are pumping out a lot of high power RF interference from their very sophisticated power supplies, whereas the older one would just be using resistors, which would have wasted a lot of power by comparison.