What type of operations does the SINCGARS radio support?

The SINCGARS (Single Channel Ground and Airborne Radio System) radio supports both Single Channel (SC) and Frequency Hopping (FH) operations, which is why the correct answer is C.

In Single Channel operations, the radio transmits on a fixed frequency, which is straightforward and can be effective for short-range communications. Frequency Hopping operations, on the other hand, involve rapidly switching between different frequencies during transmission. This enhances security and resistance to jamming, as it makes it difficult for an adversary to intercept communications.

The capability to perform both types of operations allows SINCGARS radios to be versatile, capable of adapting to various battlefield scenarios and communication requirements. This dual functionality is essential for military operations, where flexibility and secure communications can be crucial for mission success.