weird magnetic field?

Every time I lock up near Clark and  Washington I notice that my wireless bike computer thinks it is travelling fast, like 30, 60 or even 90 mph. The numbers move around as I pick up the device to take it off my bike. The device still thinks it is moving  fast after it is in my hand and no longer  on the bike.  (I bring all loose items such as lights, computer etc, in with me.) My trip from home is a little over a mile longer than what i actually traveled. and the average speed has increased by a few mph. My computer says today's max speed was 80 mph. My watch, which also measures speed, says the max was 18.1.

Does anybody know of some kind of weird magnetic field in the loop?  I have noticed this ever since I got a wireless computer a few years ago. I thought that perhaps it would change with ll the construction on Washington.  No change. Is the CIA or some nefarious group of infiltrators  hacking all our phones? Are aliens going  to beam me up and will they have those  probes? Did some contractor bury something back when  the building was built? Does the hustle and bustle of the loop provide it's own energy? Is there a portal to another dimension atop the Picasso? Or is there a more mundane reason  such as traffic light control or some other public utility thing nestled nearby?

Phantom increase of speed has led to an imaginary expansion of the imagination.

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Replies to This Discussion

Permalink Reply by Tom A.K. on September 30, 2015 at 8:00am
David, yes, aliens, and the coming zombie apocalypse, and Halloween, or also presidential primary time.
Permalink Reply by Rich S on September 30, 2015 at 8:13am

I sometimes get this effect when riding near power lines. 

Permalink Reply by David Barish on September 30, 2015 at 9:21am

Even weirder. The computer is sitting on a table in my office. For a minute it ran  again. My average speed today is 41.8 mph. I am on the  20th floor. My trip  from home is now 89.7 miles. (Funny how i am not all that tired). max speed 143.6. Just zeroed it out to see what the rest of the day brings...

Permalink Reply by Lisa Curcio on September 30, 2015 at 9:45am

Aren't you in the building with that church? :-)

Permalink Reply by Anne Alt on October 1, 2015 at 7:41am

Bizarro!

Permalink Reply by Fai Mok on October 1, 2015 at 6:36am

My old Vetta C80 Wireless computer did that.  I tried resetting the computer and pulling the battery out.  Neither method fixed the problem.  I wind up giving the Vetta away with the Trek OCLV 5200 I sold to my friend.  Problem solved.  You try contacting the manufacturer's technical support line?

Permalink Reply by Mike Schwab on October 1, 2015 at 6:39am

 http://www.washingtonpost.com/wp-dyn/articles/A28217-2004Jul4.html
At least you aren't stuck with a car that won't start.

Permalink Reply by Deet 4.5mi on October 1, 2015 at 6:44am

I have noticed that automatic door openers can set it off. I have had this happen to me at gas stations before. 

Permalink Reply by Jim Reho on October 1, 2015 at 7:00am

Have you tried using a different wireless computer in the same area? 

Permalink Reply by David Barish on October 1, 2015 at 7:17am

Interesting.  I am not riding tomorrow but will carry the computer off of my wife's bike and see if standing in the same area makes it start to move. Mine only does this at this one location. Yes I am in the church. I had not before noticed the computer running while in the building, only on the sidewalk in front of it. yesterday after zeroing out I saw it had 3.3 miles when I was putting the computer back on it's mount to ride home.

Permalink Reply by NYC (7.0 mi) on October 2, 2015 at 7:43am

I noticed a similar problem with my Strava app in the loop.  I assumed it was some kind of GPS problem caused by high-rise buildings?

Permalink Reply by Jon Cunningham on October 2, 2015 at 10:02am

You're not alone David. Both my wife's and my Cateye wireless computers will jump like that at some stoplights, under power lines, or other unknown places during a ride. But it is a fairly rare occurrence. We have different models. Her's has hit maximum speeds in the 90's, and mine has hit as high as 110 mph. Before that happened, I did not realize that the Cateye was even capable of displaying a three digit speed.

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