An Amateur/Ham Radio Operator’s Blog, And Several Radio Engineering Websites And Literature About Searching For, And Acquiring Property To Serve As A Commercial Broadcast Radio And/Or Television Transmitter Site About Searching For, And Acquiring Property To Serve As A Commercial Broadcast Radio And/Or Television Transmitter Site:

https://fmscan.org/help-en.htm

https://jwcn-eurasipjournals.springeropen.com/articles/10.1155/2009/821846