I can describe the systems I added to my Escape 17B, although I'm sure there are other successful approaches. I added a
WirEng Boat Antenna to the trailer located just in front of the driver's side rear window (I have an amplified FM antenna mounted at the rear side of the same window). The WirEng antenna is run to the upper front cabinet where I had Escape install a 12V receptacle. I have a Sleek cell amplifier in the cabinet in which I place my Verizon Hotspot if I need the amplifier. While the Sleek is no longer available, Wilson now sells a similar product - the
WeBoost Drive. They also make a
couple of devices that do not require placing a phone or Hotspot in a cradle (making it difficult to use as a phone, and only allowing one device at a time). While some have had good luck with them, others have found the short distances between the outside & inside antennas (and radio frequency transparent fiberglass roof) to be a problem. I prefer the cradle.
For WiFi, I have a
WiFi Ranger Mini. This is a device that produces more power than the standard WiFi in most laptops, and lets you connect to the campground (or other) WiFi signals, then relay the WiFi to your devices. Useful when the campground WiFi is weak, but doesn't make up for typical overloaded campground systems.
A couple of things to think about - be sure that what ever you install for a cell antenna can be changed. New frequencies are being made available to the cell industry, and may require a different antenna in the future.
If you go with a repeating cell system (outside & inside antenna) be sure to provide as much separation between the antennas as possible. Too close & you will get feedback that shuts down the amplifier.
Both cell & WiFi signals can often be improved with height. A number of individuals have added masts to raise the antenna above other RVs, trees, etc. One problem is you probably won't be able to use the mast while driving; there are times I use the amplified Hotspot in the trailer to feed a WiFi signal to my truck.