[BC] Arbitron

[towers at mre.com]

They use the motion sensing to determine if the panelist is actually
wearing the sensor.  If it's motionless for more than a certain number of
hours, it shuts down and phones home. I want to say it was 10 hours.  The
reason 10 hours was selected as they wanted to insure the unit was "alive"
when morning comes around and anyone waking to a radio is properly
monitored and stations credited at those early hours.

Otherwise, people could simply leave them in their docking station.

MM

>
>> I found it interesting the decoder ( hands of listener) has a motion
>>  detector.  Lack of movement an d it stops logging.
>
> That's the part that makes no sense to me. What does Arbitron think
> moving about have to do with listening to radio?
>
> Dave Dunsmoor