adrian777,
Heh... well... how funny.
All of those receivers you mention are smartcard-less, as in 'they do not use external, swappable smartcards' but instead, have an 'embedded card inside' (with the exception of the DP311, which original revision came with one of the old, blue smartcards. All subsequent revisions of this model were smartcard-less).
All smartcards are linked to their respective receivers in E* system, so like many others have already mentioned, the cards are not interchangeable between devices unless E* re-programs them to be used with a different receiver, and even then, they still are linked to a unique, single device.
Heh... well... how funny.
All of those receivers you mention are smartcard-less, as in 'they do not use external, swappable smartcards' but instead, have an 'embedded card inside' (with the exception of the DP311, which original revision came with one of the old, blue smartcards. All subsequent revisions of this model were smartcard-less).
All smartcards are linked to their respective receivers in E* system, so like many others have already mentioned, the cards are not interchangeable between devices unless E* re-programs them to be used with a different receiver, and even then, they still are linked to a unique, single device.