| 摘要 |
A protective device for a field apparatus includes first and second lateral plates, each plate having a top end and a bottom end. The first and second lateral plates are opposingly situated to mutually support each other in an A-shaped structure. In this A-shaped structure, the top ends are coupled together by at least one coupli ng device substantially at the apex of the "A", and the bottom ends are coupled togeth er by a fastening assembly. The bottom fastening assembly acts to restrain the rendi ng of the A-shaped structure by a force generated from debris striking the first or second lateral plate. Each lateral plate also has a handle positioned in proximity to the t op end. When a user grabs both handles, the A-shaped structure collapses for storage. The protective device further includes a transmission line and a device for transmitting an d receiving radio waves to an electromagnetic field apparatus.
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