There were four circuit boards for frequency synthesis, data in and out and RF conversion and dual helical coil bandpass filters.
32.
A Fourier domain mode locked laser consists of a ring cavity of length L with tunable optical bandpass filter and gain element.
33.
Because radio telescopes almost always pass the signal through a relatively narrow bandpass filter, this assumption is typically satisfied in practice.
34.
The farther apart the bandpass frequency and the image frequency are, the more the bandpass filter will attenuate any interfering image signal.
35.
The advantage of this method of encryption is that none of the original signal is sent, only envelopes of the bandpass filters.
36.
You will need to find a bandpass filter for your photovoltaic cell that blocks most light from the flame but allows the green to pass.
37.
R 1, R 2, C 1 and C 2 form a bandpass filter which is connected to provide positive feedback at the frequency of oscillation.
38.
With Sub-band Coding, the voice signal is split into multiple frequency bands, using multiple bandpass filters that cover specific frequency ranges of interest.
39.
Examples of UV transmission filters are the Baader-U filter or the StraightEdgeU ultraviolet bandpass filter, both of which exclude most visible and infrared light.
40.
That suggests that it's not absolutely crucial-so a bandpass filter might well work OK . You'll have to experiment I think.
