![]() ![]() Displays the frequencies and amplitudes of both signals, both third-order products and the values of both third-order intercept points.Spectrum analyzers are essential instruments in the test and measurement of any wireless system design. ![]() TOI ( Third-Order Intermodulation): Measures the third-order intercept point for two signals with the same amplitude and similar frequency.The power of the fundamental must be greater than -50dBm, else the measurement will be invalid ![]() Harmo Dist ( Harmonic Distortion): Measures the power of each harmonic (up to the 10th order) and THD (total harmonic distortion) of the carrier.Displays the carrier power, the noise power and the carrier-to-noise ratio C/N Ratio: Measures the carrier power and the noise power within bandwidths specified by the user.The OBW function also displays the offset between the center frequency of the signal under measurement and the centre frequency of the analyser.ĮBW ( Emission Bandwidth): Calculates the bandwidth of the signal (the EBW) at various levels below the signal peak (the highest point in the span), as specified by the user (e.g. 95%) and the total power measured within the span. OBW ( Occupied Bandwidth): Calculates the OBW based upon the power ratio specified by the user (e.g.When this function is enabled, the span and resolution bandwidth are automatically adjusted to smaller values Chan Pwr ( Channel Power): Measures the power and power spectral density within the channel bandwidth specified by the user.When this function is enabled, the span and resolution bandwidth of the analyser are adjusted to smaller values automatically ACP ( Adjacent Channel Power): Measures the power of the main channel and adjacent channels as well as the power difference between the main channel and each of the adjacent channels.The types of powers available include Peak, Average and RMS T-Power ( Time Domain Power): The system enters zero span mode and calculates the power within a time period specified by the user.The screen will be divided into two windows: The upper window will display the sweep trace and the lower window will display the measurement results. Press 'Meas Fctn' to access the measurement functions. The advanced measurement functions are accessed via the 'Meas' button on the front panel. The measurement mode can be single or continuous and the measurement status can be controlled: Restart, Pause or Resume. The Rigol DSA800-AMK is an Advanced Measurement Kit option containing the following advanced measurement functions: T-Power (Time domain Power), ACP (Adjacent Channel Power), Chan Pwr (Channel Power), OBW (Occupied Bandwidth), EBW (Emission Bandwidth), C/N Ratio, Harmo Dist (Harmonic Distortion) and TOI (Third-Order Intermodulation). ![]()
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