Each tuner allows u to tune to one frequency. So the dual tuner allows u to tune to two frequencies. The TV tuner program can allow u to watch/record all the channels that are on the same frequency.
Examples of channels on the same frequency are:
522MHz: Channel U, Channel News asia, okto
538MHz: Suria HD, CH5 HD
554MHz: CH8 HD, Vasantham HD
No, there is only one antenna input for this card. The other port is an output for u to pass the same antenna signal to another card/device, to avoid using splitter.
My reply: I rmb seeing a dual tuner card few years back receiving 2 of the same input so that i can record and watch different channel at the same time, during analog and DVB-T days.
But anyways, so this means for this card, i have one input (interface) that can play channels from 2 frequencies at the same time? For example, I can watch channel 5 and 8 at the same time (based on your example), is that correct?
The TBS6281 and TBS6285 cards are v1.3.1 compliant (at least the ones selling on that website from now). I had to send my TBS6285 to them to exchange for a newer hardware version that supports 1.3.1 but that's just a small blip for me.