Cable hook-up problem

Sat Prep was the only connector I can find. I spoke to the Tec at local R/V dealer. He said the Sat Prep is connected to the antenna booster and there is a splitter down stream from there just a short distance. He said that it's probably just a crossed or broken connection. I'll dig in to this a few days from now when the temps drop back in to the 80's and humidity comes down some.