RF power measurement with S.A.

Hello everybody,

Could anybody provide a detailed measurement pocedure about
RF RMS power measurement on dvb-s standard?

The measures we've done give us very different results from different power meters (peak or bolometer) and also Spectrum Analyzer (S.A.).

Now we need to do this measure just using S.A.... we're interested
in the determination of the RMS measurement of the power within a certain bandwidth.
Any measuremente related to QPSK should apply also, right?

Thanks in advance for any help!
RGs
Ciao

http://cp.literature.agilent.com/lit...5966-4008E.pdf

http://zone.ni.com/devzone/cda/tut/p/id/3622

http://www.repeater-builder.com/aero...-analyzers.pdf