OK, iPad has been around long enough that surely this issue has been addressed:
For the summer I live in an RV park which provides wifi service. However, my iPad2 has a reception of poor to none. How can I boost my wireless connection?
And yes, I have spent hours on google but can't sort out all the technical mobo jumbo. I do have a booster for my laptop that works fine but it requires uploading a 3" disc. Problem is, I don't always feel like lugging the laptop home from work and would prefer to use my iPad.