In agile operation, the magnetron frequency is commonly varied to what range?

In agile operation, the magnetron frequency is commonly varied to what range?

• A. +/- 50 MHz
• B. +/- 1 GHz
• C. +/- 500 MHz
• D. +/- 200 MHz

Answer: (D)

In agile operation, you change the transmitter frequency to make it harder for jammers to track you and to provide multiple frequencies for target discrimination. A magnetron’s frequency can be shifted by adjusting operating conditions, but the swing is limited by stability and power considerations. In practice, a swing of about plus or minus 200 MHz gives a meaningful agility to defeat simple jamming while staying within the operational band and keeping reliable performance. Smaller swings like ±50 MHz offer limited jamming resistance, whereas swings as large as ±1 GHz or ±500 MHz are generally impractical for stable, efficient magnetron operation. So the commonly used range is ±200 MHz.

In agile operation, you change the transmitter frequency to make it harder for jammers to track you and to provide multiple frequencies for target discrimination. A magnetron’s frequency can be shifted by adjusting operating conditions, but the swing is limited by stability and power considerations. In practice, a swing of about plus or minus 200 MHz gives a meaningful agility to defeat simple jamming while staying within the operational band and keeping reliable performance. Smaller swings like ±50 MHz offer limited jamming resistance, whereas swings as large as ±1 GHz or ±500 MHz are generally impractical for stable, efficient magnetron operation. So the commonly used range is ±200 MHz.