Howtosignalprocessing
- Why is SINAD not important?
- What is a SINAD meter used for?
- How do you calculate SINAD?
- What is 12 dB SINAD?
Why is SINAD not important?
Since SINAD is a ratio to the sum of noise and distortion, it can be 'dominated' by one of the two if it is much higher. Because a 20dB difference is a tenfold change, the ratio doesn't change much between an amplifier with -80dB THD and -100dB noise, and one with -80dB THD and no noise at all.
What is a SINAD meter used for?
SINAD is a measurement that can be used for any radio communication device to look at the degradation of the signal by unwanted or extraneous signals - in particular noise and distortion. However the SINAD measurement is most widely used for measuring and specifying the sensitivity of a radio receiver.
How do you calculate SINAD?
SINAD equals the RMS sum of THD + SNR. For the computed / entered SINAD, the corresponding RMS noise and the equivalent number of bits are shown in an output field at right.
What is 12 dB SINAD?
A SINAD value of 12 dB, corresponds to a 4:1 SNR or a signal containing 25 percent distortion. THE SINAD RECEIVER MEASUREMENT. To make the SINAD measurement a known signal, a 1 kHz audio tone is typically used to modulate the carrier frequency for which the receiver is tuned for proper demodulation.
