Peak transmittance refers to the highest transmittance of a bandpass filter in the passband. The peak transmittance requirement varies depending on the application. In the noise suppression and signal size requirements, if the signal size is more important, hoping to improve the signal strength, this case requires a high peak transmittance rate, if the noise suppression is more important, hoping to get a higher signal-to-noise ratio, you can reduce some of the peak transmittance rate requirements, and improve the cut-off depth requirements.

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