Where is the balanced crystal (XTAL) mixer typically mounted?

The balanced crystal (XTAL) mixer is typically mounted in the section of waveguide within the receiver for several reasons. Primarily, the mixer’s primary function is to convert incoming radio frequency (RF) signals to intermediate frequency (IF) signals, which are easier to process and analyze.

By placing the mixer within the waveguide of the receiver, it can effectively interact with the RF signals captured by the antenna. This positioning ensures minimal loss of signal integrity during the mixing process, helping to maintain signal fidelity. The waveguide environment also provides a controlled RF path, which is beneficial for the mixer’s operation, as it allows for efficient signal mixing while minimizing interference from external sources.

Therefore, mounting the balanced crystal mixer in the waveguide section of the receiver directly aligns with its function and optimizes the overall performance of the radar system. Other locations, like the transmitter or control panel, would not facilitate the mixer’s primary role efficiently, making the chosen answer the most suitable.