This requirement implies that a radio astronomer must restrict signals through a bandpass filter.
Because radio telescopes almost always pass the signal through a relatively narrow bandpass filter, this assumption is typically satisfied in practice.
In part, a decoder is a narrow bandpass filter.
The Sun has an illumination power of about 50 watts per square meter after the optical bandpass filter.
They can also be used in conjunction with a low-pass filter to make a bandpass filter.
Exploit the fact that the pass and stop bands of bandpass filters would always be separated by transition regions.
A modulator and carrier signal are sent through a series of these tuned bandpass filters.
These harmonics can be selected by a bandpass filter.
Hence, one might say "A dual bandpass filter has two passbands."
Such a crossover would then have a bandpass filter for the lowest-frequency driver.
Wörterbuch für Elektronikbegriffe