Here is a quote from a user who installed this unit in his Class "C" motorhome.
"An update on testing/installation of my new Artec T3A Pro DTV
converter, which is now done. I cut off the AC brick from the 12V
cord, and soldered the cord to the existing 12V pigtail to the TV -
the Artec works fine from the coach battery. For connection to the TV,
I am using the RF output, since this provides the simplest
interconnect and fewest wires. To disconnect the Artec, I simply pull
three quick-disconnect plugs from the back, and reconnect the two RF
cables to each other with a bulkhead connector. Pull, pull, pull, push
and push, and the TV is reconnected for analog use. The Artec is so
small and unobtrusive, that I will just stash it away when not in use,
and leave it on the table in front of the TV while connected.
I also tested use via the composite video and line-level audio inputs,
and the picture is of course slightly better, but fast a-b testing is
needed to tell the difference. If your screen is significantly larger
than our 13" lcd, you might want to opt for this connection. In our
case, these inputs are already occupied by our DVD player, so it's not
worth the switchover hassle. BTW, the RF ch3 output is apparently in
stereo, as far as I can tell - this is not always the case with
modulator outputs, but may be a federal requirement for these units."
As usual, your mileage may vary