Rigol dsa815 tg spectrum analyser 1 5ghz rigol dsa815 tg p this 1 5ghz spectrum analyser from rigol has a unique widescreen display friendly interface and easy to use operations included are the following features p p distinguish the two nearby signals clearly with the 100hz rbw br compare spectrums when changing the rbw settings with different colour trace br zero span to demodulate the am signal br read out the spectrum peak values with the peak table function br measure lower than