GMDSS Maintainer: Element 9

1. A It starts with a sweep of 10.2 usec.followed by a sweep of 0.6 usec for a total of 10 sweeps.
2. B It starts with a sweep of 0.8 usec followed by a sweep of 12.6 usec for a total of 12 sweeps.
3. C It starts with a sweep of 0.4usec across the entire 3 cm radar band followed by a returning sweep of 7.5 usec back to the beginning for a total of 12 sweeps.
4. D It starts with a sweep of 8.5 usec followed by a sweep of 0.4 usec for 10 sweeps.

Tip: press A-D to answer