Spacecraft transmit a radio signal
, so they can receive one that might potentially disable them.
The radio signal
contents represent short encyclopedia of knowledge about the world around us, greetings to the future posterity, greetings to extraterrestrial civilizations.
The radio signal
enters a clear crystal and "carves out" the hologram inside it.
AT&T's spread-spectrum, frequency-hopping architecture, which is patent-pending, actually avoids interference by "hopping" the radio signal
among 50 of the available 173 channels during a conversation.
If Alice and Bob can measure the strength of, say, 24 different frequencies of each radio signal
, then each word corresponds to 24 coordinates--the strength of the signal's corresponding frequencies.
The antenna, not affected by climate or temperature, emits a low-frequency radio signal
that, when the cart passes over the stripe, triggers a plastic cover to drop over the wheel.
Viquez adds that HD Radio multicasting is especially attractive to broadcasters because of its ability to divide the radio signal
into separate audio channels, allowing new programming opportunities.
When the pass is waved past one of the special pumps a radio signal
from the pump triggers a response from the pass, which activates the pump and begins the process of charging the purchase.
The station is spending close to $3 million to upgrade its radio signal
What's more, exploiting these six newly recognized channels of a radio signal
requires only one antenna, albeit a bristly one, at each end of the link.
Broadcasting at 50,000 watts, Radio 830 KMXE boasts the largest Hispanic AM radio signal
in the nation, providing programming to fans in the greater Los Angeles metro market.
EnOcean's patented technology lets STM100 generate a surprisingly long-range radio signal
with extremely minute amounts of harvested energy," said Armin Anders, EnOcean's VP of product marketing.