In AGILE operation, by how much is the magnetron frequency varied around the selected frequency?

In AGILE operation, by how much is the magnetron frequency varied around the selected frequency?

• A. +/- 200 MHz around the selected frequency
• B. +/- 20 MHz around the selected frequency
• C. +/- 2 GHz around the selected frequency
• D. +/- 100 MHz around the selected frequency

Answer: (A)

In AGILE operation, the magnetron is deliberately varied around the chosen center frequency to create spectral spreading and make the signal less predictable. The standard swing is about ±200 MHz, giving roughly 400 MHz of instantaneous bandwidth around the selected frequency. This range provides meaningful agility while staying within practical tuning limits of the magnetron and the system’s band constraints. Smaller swings like ±20 MHz or ±100 MHz wouldn’t give enough spectral diversity, and a swing as large as ±2 GHz is usually impractical for the hardware and band allocations.

In AGILE operation, the magnetron is deliberately varied around the chosen center frequency to create spectral spreading and make the signal less predictable. The standard swing is about ±200 MHz, giving roughly 400 MHz of instantaneous bandwidth around the selected frequency. This range provides meaningful agility while staying within practical tuning limits of the magnetron and the system’s band constraints. Smaller swings like ±20 MHz or ±100 MHz wouldn’t give enough spectral diversity, and a swing as large as ±2 GHz is usually impractical for the hardware and band allocations.