In Spin Decoupler, the difference frequency circuit provides a means of mixing two signals and a filter to recover which of the following?(a) Low-frequency component(b) High-frequency component(c) Low-voltage component(d) High-voltage componentThe question was posed to me at a job interview.My question is based upon Sensivity Enhancement for NMR Spectroscopy topic in section Nuclear Magnetic Resonance Spectrometer of Analytical Instrumentation

In Spin Decoupler, the difference frequency circuit provides a means o

1.	In Spin Decoupler, the difference frequency circuit provides a means of mixing two signals and a filter to recover which of the following?(a) Low-frequency component(b) High-frequency component(c) Low-voltage component(d) High-voltage componentThe question was posed to me at a job interview.My question is based upon Sensivity Enhancement for NMR Spectroscopy topic in section Nuclear Magnetic Resonance Spectrometer of Analytical Instrumentation
Answer» Right CHOICE is (a) Low-frequency component Easy explanation: In Spin Decoupler, the difference frequency circuit provides a MEANS of mixing TWO signals and a FILTER to recover the low-frequency component. It is included to provide a read-out frequency.

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