[wejones]

You should be able to do that with different receivers, however, I'm guessing that you may have the sats saved as different DiseqC1.2 sat numbers on the different receivers.
Using DiseqC1.2, there is really nothing stored in the receiver. It's only your motor that remembers where the sats are, so it shouldn't matter which receiver sends the command to go to a sat unless you have the sats saved under different sat numbers.. ie if say AMC3 was saved as sat 29 on one receiver, and 30 on another... Ie after the second save, AMC3 might be on position 30, and some other sat might be on position 29, but when you go back to the first receiver, it thinks that AMC3 is at 29, but when it give the goto29 command, it actually goes to some other sat and your channels won't lock in. That's what I'm guessing happened here, so check to see what DiseqC1.2 sat numbers are used on each receiver, because the sat NAME means NOTHING. The motor only knows the number.