Note: Your results will vary with campgrounds and possibly from site to site within the campground.. EXAMPLE: where I am currently parked I get two stations strong. both Canadian.. A different site I get like 20 stations, DETROIT, same campground not 300 yards different.. Thanks to dual DVR's I'm not worried about running out of TV to watch I have like 500 hours on the hard drive already. :).
What I use to get TV.. A Winegard Sensar III with added wingman and the Sensar Pro switch module inside (Read on)
What I recommend.. IF YOU HAVE a Sensar II or III add the wingman, IF NOT get the Sensar IV (WIngman included)
Replace the wall switch (This is the wall plate with the 12 volt acc outlet, a Switch, LED and antenna connection) inside the RV with the Sensar Pro.
FORGET the jack,
Now as I said your results will vary. If you are in a deep fringe area like my parent's last house.. Well HEIGHT IS MIGHT (Per a TV engineer we were in a "NO COVERAGE" area with that house but 100' up in the air (plus a bit) sat Channel Master's #2 antenna as I recall (May have been #1) with a mast head amplifer (I installed.. I'm an acro-phobe but I climbed that tower (With a safety harness) and installed the pre-amp) and we got lots of TV up to 100 miles plus away)
My Sensar is good for about 50 miles 60 on occasion.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times