Is it wireless or wired to the monitor? My experience is that is a long way for wireless. Can you park the TV near the back of the trailer or beside it and try the system like that. Once paired it will be more likely to pair on longer distances. I had to put the extra alternative aerial up near the front of my AC unit as it is full of metal and blocked the signal.
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Toyota Tundra towing 2016 Grey Wolf 26RR
24 nights camping & 1450 miles so far (August 17)
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