Ken,
The Pro will transmit RF if you setup correctly in System Properties, AND (here's the rub) your SOURCE codes (not an alias) is in a device set to RF.
If you put all your codes in a single device (an alias ccf) you could set that device to RF in Device Properties, but then ALL codes would be sent RF. You have no ability to pick and choose which gear is RF controlled and which is IR.
If all your codes are presently in a single device, you have 2 fairly easy choices:
1 - Create a new device called RF codes, set Device Properties to RF and drag (don't copy and paste) the panels containing codes which you want to control via RF into it. Leave the other device set to IR as these codes will be sent IR.
2 - Maybe better, drag the code panels for the TV into the TV device, the DVD codes into the DVD device etc, etc. This way, setting DVD Device properties to RF means all the codes will be sent RF.
Sorry if this sounds confusing, but the key is the SOURCE code (ie the target of the alias) not the alias itself must be in a device set to RF. By the way, dragging code panels up and down the tree won't break the aliases, cut and paste will.
Jim L