Is it possible to activate a reciever for a few months of the year, and then deactivate for the rest of the time. In the summer, I'd like to have a reciever activated on my boat (which is in the backyard). But then in the Fall/Winter/Early Spring, I'd like to deactivate it. I don't want to pay the mirroring fee when I'm not using it. Is there any charge (besides the mirroring fee) to do this? I know I'll have to buy another reciever as well. (BTW I have a 4x8 multiswitch - with 3 open ports - so I'm OK there as well).