As long as you have one of TechnoRV's Boosters, simply plug it into the Repeater. That's all the installation that is required.
What the repeater does is take the boosted WiFi signal and then repeat it or re-broadcast it over a new local WiFi, kind of like your own WiFi hotspot. Each of your devices then connects wirelessly to this new hotspot and can thereby talk to the boosted WiFi signal and hence the internet. It's very cool. You can even give your hotspot signal a name and password protect it to stop those pesky people from trying to use your cool gear.
Here's a diagram (okay, I know it's a house but your RV is a house, right, it just has wheels):
The only catch is that you do need to tell the repeater what WiFi signal to 'tune in to'. You do that by connecting a computer to the repeater (either by ethernet or wirelessly) and then selecting the appropriate signal. Don't worry, it comes with instructions and we also have a Learning Series that comes with it.
If you look on my website you will see that there are two WiFi Repeaters. The USB WiFi Repeater is $99.95 and the Radio Labs USB WiFi Repeater is $139.95. They both do exactly the same thing, have the same specifications and even use the same internal chipset. The only real difference is that Radio Labs is made in the US and features a strong solid aluminum case whereas the other one is plastic and is made overseas. They both have the same warranty, although the support offered by Radio Labs is not as good in my opinion which is the other reason why we wanted to offer you a choice. So, you get to choose.
If you'd like more info, here's a short YouTube video with me talking about the repeater. I'm using the RadioLabs version as an example, but everything I say applies equally to both models.