Understood. Thanks for your clarification! I have only seen CAMs that support dual descrambling. Are there any cheap Conax CAMs for 2+ channels?In the first case: CAMs have a "hard" limit on the number of channels that they can decrypt simultaneously due to their hardware and/or software design. For example, MortenRS_DK has a CAM that can decrypt 2 channels. Often the limit is 1, 2, 3 or 4 channels.I read those limitations, but couldn't understand the difference between these two you explained?
In the second case: DD have a feature called "MTD" (multi-transponder decoding). This feature enables you to share a CAM between tuners and save money (no need to buy one CAM per tuner). When you use MTD, each tuner can only decrypt 1 channel... even if the CAM can decrypt more than 1 channel. Overall, the CAM hard limit still applies. For example, MortenRS_DK's CAM can decrypt 2 channels; he can share the CAM between 2 of his tuners; each tuner can decrypt 1 channel.
If you still don't understand then I can only suggest that you speak to DD and/or do more reading.