Hi Justin,

thank you for your quick response.
So if I want to align a the TX of a DMR TRX @ 440 Mhz f.e. or maybe show that it is not meeting the specs I would use the SA44B in frequency difference meter mode or I think better Modulation analysis with my 1ppb Timebase and that would lead me to an accuracy of about +- 0.01ppb = 0.0044 Hz of the TX´s center frequency and the corresponding 4FSK points?

sorry for being a pain but Im just getting into Spectrum analysis –
I understand the ingredients but still cant bake the cake

thank you

Sebastian

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