I'm going to shoot your question as to the difference on the above items to a couple of the tech guys at Hunter for an answer. Probably won't get it back until at least tomorrow. There is a certain breaking point on age of the product that changes what will work with what. I have the large Hunter Douglas manual in front of me, but it is very lacking in the retro information and I can't remember the details. Hunter has so many variations I have to re-educate myself on every issue.
So far as controlling with Crestron and not using IR, I would think your only option is the RF. There must be some way with Crestron to control AC on/off to a socket. That's all it takes for the Platinum RF adapter to work.
So far as mounting the stuff under a valance, I have mine hidden and completely enclosed by wood except where the shade pops out of the bottom. Works good. My throw distance from the RF adapter to the shade is only about 8 feet so I have plenty of signal. But, I use the hand sender from about 20 feet with it with no difficulty.
Deane - You're a star. Thanks very much.
The confusion I have with the new satellite eye is that it says it is RF and IR. Is that an either or situation? If both are used, doesn't that mean line of sight is needed?