| 摘要 |
Typically at least one soldier of a unit on patrol carries a radio with antenna to provide means to communicate with a base. The antenna is often mounted to the soldier's rucksack (100) to keep the soldier's hands free. When erect, the antenna's radial driven members are unwieldy and liable to snag on passing objects which can lead to the antenna breaking. Rucksack mounted antenna also make the solider, and consequently the unit as a whole, more conspicuous to the enemy. To prevent this, the antenna can be dismantled when not in use. This is time consuming and requires the solider to remove his rucksack. This problem is solved through provision of an antenna (1A) that can be collapsed into, and erected from, a housing. There is also a pull cord mechanism (39,57) arranged, when pulled, to causes the antenna to revert between the erect or collapsed configurations. The pull cord extends from the antenna to a position in easy reach of the soldier's hand so that the antenna can be erected/collapsed remotely. |
