shorten range of

GPS/GNSS Development Boards
1

Hi there,

I have a adxrs150 breakout board module from sparkfun.

see, http://www.sparkfun.com/commerce/produc … cts_id=396

it is weird to notice that the datasheet says http://www.analog.com/UploadedFiles/Dat … XRS150.pdf

that the minimum dynamic range is plus/minus 150 degrees but I cannot see range. the typical sensitivity is 12.5mV/degree/sec

but from what we can see (the attached)

[<LINK_TEXT text=“http://aycu02.webshots.com/image/33401/ … 008_th.jpg”>http://aycu02.webshots.com/image/33401/2001551470870293008_th.jpg</LINK_TEXT>

  1. the maximum voltage NEVER goes to 5V. i suppose that i have a lt1013 op amp voltage follower in place and that might be the reason

  2. i do not notice any (the notorious) significant drift? i am sampling at 200hz and for about 30 sec.

  3. i don’t see that the min dynamic range of 150 degree. I was shaking the gyro in my hand. and as we can see (4.359-2.601)V/12.5mV/degree/sec=140degree/s.

and i dont see that i can shake my right hand at more than 90 degrees. so where is the 50 extra degree coming from??

please advise. [/img]](http://allyoucanupload.webshots.com/v/2001551470870293008)