How often does SINCGARS hop frequencies?

The correct choice indicates that SINCGARS (Single Channel Ground and Airborne Radio System) hops frequencies 100 times per second. This frequency hopping provides several advantages, primarily enhancing secure communications and reducing the likelihood of interception by adversaries.

By rapidly changing frequencies within a designated frequency band, SINCGARS can maintain secure communication links even in environments where electronic warfare or jamming might be prevalent. The frequency hopping mechanism ensures robust communication by making it difficult for an enemy to jam a single frequency for any extended period since the transmission rapidly moves across multiple frequencies.

The choice of 100 times per second aligns with the design specifications of SINCGARS, which prioritize operational security and resilience in fluctuating communications conditions, factors that are critical in military operations.