radio reflector การใช้

ประโยค

1. Dr . Donald B . Campbell, the director of the upgrade, escorted guests to the interior of an aluminum dome suspended by cables hundreds of feet above the ground, containing two gigantic radar and radio reflectors.
2. The largest individual radio telescope of any kind is the RATAN-600 located near Nizhny Arkhyz, Russia, which consists of a 576-meter circle of rectangular radio reflectors, each of which can be pointed towards a central conical receiver.
3. If there is a radio reflector nearby ( potentially anything sizeable and metal ) you may get a pattern where the reflection cancels out the unreflected signal at one point, but a few metres away doesn't cancel it.
4. A disadvantage of the original Arecibo system was that a spherical reflector, whether it is an optical mirror or the perforated metal sheeting covering a radio reflector like that of Arecibo's dish, cannot bring rays to focus at a single point.
5. E . g . in the UK some amateur radio licence holders are allowed to transmit using ( 33 dBw ) 2.0 kW for experiments entailing using the moon as a passive radio reflector ( known as Earth-Moon-Earth communication ) ( EME ).

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