Looks like these ARE legal! Go to
>
formatting link
and
> use PZO (letter O) for the Grantee Code. Lots of information comes up.
The devices that repeat cellphone signals inside a structure _are_ legal if properly installed and type-accepted.
The devices which are basically linear amplifiers for the cellphone are _not_ legal. And a number of them have spurs in government bands including the MLS band (a personal favorite).
--scott
"C'est un Nagra. C'est suisse, et tres, tres precis."