| 摘要 |
The assembly has one or more receiving aerials supported in a holder and connected to a conductor for connection to a receiver. Each receiving aerial has a closed rectangular metal frame consisting of two U-shaped members telescoped together. The frame has a fixed width, lying in a single plane, and is adjustable in length by sliding the telescoped limbs of the U-shaped members. The shorter sides of the frame have a constant cross-section. Each frame may be pivotally connected to the holder by one of its shorter sides. That shorter side may be a cylindrical rod rotatably mounted in the holder. The arrangement allows independent aerial adjustment.
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