Spectrum Analyser for GB?

Hi just wondering if there is a spectrum analyser or plugin available for GB? im trying to do some basic mastering & im wanting to see what some of the frequencies are doing.
cheers

Hi,
Yes, here you go:
http://www.rogernicholsdigital.com/download_Inspector.htm
WH [:c)~
old G4   Mac OS X (10.4)  

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