The East Greenwich Police Department utilizes the radio transmission facilities of the Warwick Police Department, thereby eliminating duplication of facilities and ensuring police coordination in the Cowessett-East Greenwich-Potowomut area of the two communities.

In radio communication, a continuous wave radio-frequency signal ( a sinusoidal carrier wave ) has its amplitude modulated by an audio waveform before transmission.

A practical television system needs to take luminance, chrominance ( in a color system ), synchronization ( horizontal and vertical ), and audio signals, and broadcast them over a radio transmission.

For example, the introduction of FM stereo transmission allowed backward compatibility since new FM radio receivers could receive monaural signals generated by old transmitters.

* Band ( radio ), a range of frequencies or wavelengths used in radio transmission and radar

As the anniversary of Confederation, Dominion Day, and later Canada Day, was the date set for a number of important events, such as the first national radio network hookup by the Canadian National Railway ( 1927 ), the inauguration of the CBC's cross-country television broadcast ( 1958 ), the flooding of the Saint Lawrence Seaway ( 1958 ), the first colour television transmission in Canada ( 1966 ), the inauguration of the Order of Canada ( 1967 ), and the establishment of " O Canada " as the country's national anthem ( 1980 ).

However, at energies too low to excite water vapor the atmosphere becomes transparent again, allowing free transmission of most microwave and radio waves.

* Evolution Data Optimized, a telecommunications standard for the wireless transmission of data through radio signals

Feedback oscillators became the basis of radio transmission by 1920.

EDGE, like GPRS, uses a rate adaptation algorithm that adapts the modulation and coding scheme ( MCS ) according to the quality of the radio channel, and thus the bit rate and robustness of data transmission.

Armstrong was also the inventor of modern frequency modulation ( FM ) radio transmission.

FM enabled the transmission and reception of a wider range of audio frequencies, as well as audio free of " static ", a common problem in AM radio.

In the 1970s, the ground-based Omega Navigation System, based on phase comparison of signal transmission from pairs of stations, became the first worldwide radio navigation system.

The event started at 16: 00 ( a time chosen so as not to breach the sabbath ) and was broadcasted live as the first transmission of the new radio station Kol Yisrael.

The latter two radio technologies used microwave transmission over the Industrial Scientific Medical frequency band at 2. 4 GHz.

Since ISDN provides a high quality connection this assists in delivering good quality audio for transmission in radio.

A SRI International | Stanford Research Institute packet radio van, site of the first three-way Internetworking | internetworked transmission.

:: domestic: Microwave radio relay transmission and coaxial and fiber-optic cable are employed on trunk lines ; considerable use is made of mobile cellular systems ; Internet service is available.

* 1903 – President Theodore Roosevelt sends a radio message to King Edward VII: the first transatlantic radio transmission originating in the United States.

* 1896 – A. S. Popov makes the first radio signal transmission in history.

Medium-wave, shortwave, and FM stations reached 80 percent of the country — over 160 radio stations and 500 relay and transmission stations — with some 240 radio programs.

One advantage is that every packet sent contains the sender's and recipient's amateur radio callsign, thus providing station identification with every transmission.

The rules and policies to be applied in this process of course must be based on objectives which represent what is to be desired if radio service is to be of maximum use to the Nation.

and that the maximum of the radio emission came about 3-1/2 days after Full Moon, which is again in contrast to the infrared emission, which reaches its maximum at Full Moon.

Modern Class AB amplifiers commonly have peak efficiencies between 30 – 55 % in audio systems and 50-70 % in radio frequency systems with a theoretical maximum of 78. 5 %.

After sunset an increase in the height of the E layer maximum increases the range to which radio waves can travel by reflection from the layer.

* Maximum operating frequency: low, medium, high, radio frequency ( RF ), microwave ( The maximum effective frequency of a transistor is denoted by the term, an abbreviation for transition frequency — the frequency of transition is the frequency at which the transistor yields unity gain )

Frequency deviation ( Δf ) is used in FM radio to describe the maximum instantaneous difference between an FM modulated frequency and the nominal carrier frequency.

Given that radio communication channels are allocated by agencies such as the Federal Communication Commission giving a prescribed ( maximum ) bandwidth, the advantage of QPSK over BPSK becomes evident: QPSK transmits twice the data rate in a given bandwidth compared to BPSK-at the same BER.

Historically, the distance to the visible horizon at sea has been extremely important as it represented the maximum range of communication and vision before the development of the radio and the telegraph.

Unlike modern engines they have no radio, no cutting equipment, only a single ladder, and were relatively slow with a maximum speed of around, a comfortable cruising speed of, no power steering, and sensitive on corners.

While Mexico issued radio station XERF with a license to broadcast, the power of its 250 kW transmitter was far greater than the maximum of 50 kW authorized for commercial use by the government of the United States of America.

The FCC eventually fined Infinity $ 357, 000 — the maximum fine allowed by law, and the third largest indecency fine in American radio history at the time.

Applying the above formula to the 25-meter-diameter antennas often used in radio telescope arrays and satellite ground antennas at a wavelength of 21 cm ( 1. 42 GHz, a common radio astronomy frequency ), yields an approximate maximum gain of 140, 000 times or about 50 dBi ( decibels above the isotropic level ).

One complication the FCC considered was the " Wheeler Resolution ", passed by the United States Senate in 1938, expressing the view of the Senate that radio stations should be limited to a maximum power of 50 kW.

An important principle used in crystal radio design to transfer maximum power to the earphone is impedance matching.

VHF / UHF television and radio signals are normally limited to a maximum " deep fringe " reception service area of approximately in areas where the broadcast spectrum is congested, and about 50 percent farther in the absence of interference.

* Frequency deviation, the maximum allowed " distance " in FM radio from the nominal frequency a station broadcasts at

Using the maximum of four time slots, this can provide an increase in maximum transfer rate of up to 57. 6 kbit / s ( i. e., 4 × 14. 4 kbit / s ) and, even in bad radio conditions where a higher level of error correction needs to be used, can still provide a four times speed increase over CSD ( 38. 4 kbit / s versus 9. 6 kbit / s ).

The United States Federal Communications Commission uses PEP to set maximum power standards for amateur radio transmitters.

Whenever a source of power with a fixed output impedance such as an electric signal source, a radio transmitter or a mechanical sound ( e. g., a loudspeaker ) operates into a load, the maximum possible power is delivered to the load when the impedance of the load ( load impedance or input impedance ) is equal to the complex conjugate of the impedance of the source ( that is, its internal impedance or output impedance ).

However, Haldora vanishes and his radio signal reaches the shuttle, which races to save him at maximum acceleration, killing Morwenna.