Fred,
To answer your other question about controlling a rotator and amp; yes, you could use a PC at the station controlled by something like VNC or Teamviewer.
If you do not wish to run a PC at the radio location, you can forward the serial ports over the internet. There are essentially three ways to do this:
1) Use the two serial port servers built into the RemoteRig RRC's. With normal operation, COM2 is usually used to carry the CAT signal, so COM1 is available for control of other devices. If running one of the Twin configurations, COM2 is used to connect the two RRC's already, so to have local CAT one must use a special mode on the control RRC that brings this CAT signal to COM1 as well. In that case, both serial ports are already used by the RRC's and are unavailable for other devices.
2) You can use a standard serial port server, such as one from Lantronix or other companies. These allow you to install a virtual serial port on your control location's PC and use these serial ports for your software as if they are local.
3) If you have a supported device, RemoteRig offers a separate device that allows web-based control over the internet. See
http://www.remoterig.com/wp/?page_id=636 for further details. Note that the RemoteRig guys plan to add a virtual serial port to these devices in the future to allow use of serial control software on the PC in the control location.
73,
Mitch DJ0QN / K7DX