OnLime TVCard (PCMCIA/CI+) and multiple connection points?

Question

Iron

OnLime-TVCard. Question about multiple connection points.
Actually that's what. The Ci + online card migrated remarkably to the other end of Moscow to another TV set and started working. I took 1 more card - it also worked (tied to the same account). Now the question is - online allows you to use up to 3 devices. Do I understand correctly that they will work just as well at different ends of the city as in neighboring rooms? I want my parents to connect a TV to my account so as not to pay an additional 550 rubles per month.
For reference - DVB is already chasing the antenna cable at both points. Essno no additional wires in the apartment and no need. We are talking about DVB and not about IPTV and VOD