Up-conversion is:
A) the process of having the IF frequency in a superheterodyne receiver be higher than the range of RF frequencies being received by the receiver.
B) a technique used to reduce the image frequency problem from occurring in superheterodyne receivers.
C) a superheterodyne receiver design that is feasible due to the availability of VHF crystal filters (30 - 120 MHz) for the IF circuitry.
D) all of the above

Question

Quizplus · Accepted Answer

All the statements describe aspects of up-conversion in the context of superheterodyne receivers, including the use of a higher IF frequency to mitigate image frequency issues and the feasibility of such designs due to the availability of VHF crystal filters.

Up-Conversion Is