FYI - W3LPL posted some very useful coax tables many years ago. They are
available on K1TTT's excellent site. In addition to the standard db loss per
100 feet numbers, Frank added loss numbers for specific frequency ranges we
care about, and did some very interesting tabulation to help determine when
it's worth going to a higher cost, lower loss cable.
Some of the newer cables are not listed in these charts, but one can easily add
them with information available on the web. One could also take these tables
into Excel and modify, update, add pricing info etc etc etc.