Final answer:
Two improvements that can be made to a radar set to make it more sensitive are increasing the antenna size and implementing advanced signal processing techniques.
Step-by-step explanation:
There are two improvements that can be made to a radar set to make it more sensitive:
Increasing the antenna size: A larger antenna allows for a greater capture area, which results in a stronger signal reception and improved sensitivity. This enables the radar to detect objects at longer ranges.
Implementing advanced signal processing techniques: By using sophisticated algorithms and filters, the radar can enhance the received signals, improving the signal-to-noise ratio and increasing the ability to detect faint signals.
Both of these improvements work together to enhance the sensitivity of a radar set and enable it to detect objects at longer ranges.