I have had two rcvrs for many yrs (since dominion network started in '96) and discontinued service lately but would like to start up again after a break in service of about 8 months. Question is this: can I put my two old owned rcvrs - 3900 and DP501 back in service and use one out of the house in my camper in the mountains part of the year? Gets into the often discussed phone line hookup question I guess.