Many of us will be happy to help you get up to speed on radios. Please be aware though that although we're happy to answer your questions and help point you in the right direction, it is expected that you'll put as much thought and research into your question as you'd like the respondent to do in providing an answer.
For example, a common question we get is a very simple one like 'What is the best <insert item here such as radio, antenna, etc.>?'. It is obvious that very little thought was given to the question so the appropriate answer (using the same amount of thought that went into the question) would be "One that does the job!". Obviously neither the question nor the answer is of much use to either party.
A better question that would almost certainly yield a better answer would be a question that provided specific details on how the item being asked about was going to be used. For example. Instead of simply asking "What's the best antenna?", providing details like "I'm trying to monitor the Podunk, ID 800 MHz system, but I only get a weak signal. I live in a town about 15 miles away in an upstairs apartment so an outside antenna isn't possible. What things should I try to help me get a stronger signal?" would provide the respondents with something to help base their answer.
Good luck expanding your business and hope the RR community is helpful in getting you up to speed.