<nealb@vmcmail.com> wrote in message
news:1161092912.153339.111940@i42g2000cwa.googlegr oups.com...
>
>
> What does hopping mean???


Older garage door openers send out the same code everytime.

Newer openers change the code on each button press following an algorithm so
that a code grabber can't capture the code and open the door later on. That
is called code hopping.