It is necessary because if Moleculo TX's his call on 2m, his call is then TX on his base at 440.
Oh ya, good idea. That would do it.
The problem is that if I am listening to his comms, I cannot tell who is the control op of the repeater.
I may hear both parties plus the repeater and there is no way I could tell who is the control op of the repeater until Moldy's call comes out over 440 on his repeater;
otherwise, it is just an unidentified repeater...
Right. I see your concern.
As "Moldy" puts it though, no one but he and his select followers would even know that it is a reapeater. If all things are functioning correctly, no one would ever be able to tell unless they were tuned into all 3 frequencies. Then they might be able to piece together what was going on, but I think the only conclusion would be is, "Hey, this guy is clever".
Playing the "rules are sufficiently worded" for interpretation card and continue operations sounds like a safe bet. If there is an "auto-id" feature on the repeater station, no harm in using it right?
Mole gets clever points for figuring a way around the id for the 440.00 repeater (or being ballsy enough to just say it like it is). If you are confident that setup is working right and the repeater is not causing some unidentifiable interference, the ID from the HT on 440.00 sounds good.
I would take the easy way out though. Leave the repeater on low power for the 440 side and ID like C2 says on the 2m side. Then you don't need to have the second antenna or duplexer.
Huh. Pretty interesting stuff. I had no idea how or what this cross-band repeater business was until reading here. Turns out it is something I can definitely use.