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KSM (radio Station)
KPH is a coast radio station on the Pacific Coast of the United States. For most of the 20th century, it provided ship to shore communications including telegrams (using Morse code) and marine telex service (using radioteletype). The station discontinued commercial operation in 1998, but is operated occasionally as a historic service – its signal can be received over a large portion of the western hemisphere. Ship to shore telephone calls were not handled by KPH but by other stations such as the nearby AT&T high seas station KMI. History The station dates back to the dawn of the radio era in the early years of the twentieth century when it began operations at the Palace Hotel in San Francisco, California, using the callsign "PH". Forced out by the 1906 San Francisco earthquake and fire, the station moved from one temporary site to another until it was acquired by the Radio Corporation of America (RCA) and relocated to Marin County. Subsequently, it was owned by MCI Com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coast Radio Station
A coast (or coastal) radio station (short: coast station) is an on-shore maritime radio station which may monitor radio distress frequencies and relays ship-to-ship and ship-to-land communications. A coast station (also: '' coast radio station '') is – according to ''article 1.75'' of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR)ITU Radio Regulations, Section IV. Radio Stations and Systems – Article 1.75, definition: '' coast earth station / coast earth radio station'' – defined as «''A land station in the maritime mobile service''.» See also * Marconi Station * Utility station * KPH - A preserved RCA coastal wireless station in California * WCC - A former coastal wireless station on Cape Cod, now operating from Maryland * Portishead Radio Portishead Radio (callsign GKA) was a radio station in England that provided worldwide maritime communications and long-range aeronautical communications from 1928 until 2000. It was the world's la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bolinas, California
Bolinas is an unincorporated coastal community and census-designated place in Marin County, California, United States. As of the 2020 census it had a population of 1,483. It is located on the California coast, approximately (straight line distance) northwest of San Francisco, and by road. The community is known for its reclusive residents. It is only accessible via unmarked roads; any road sign along State Route 1 that points the way into town has been torn down by local residents, to the point where county officials offered a ballot measure to which the voters responded by stating a preference for no more signs. History Prior to the European colonization of California, the Coast Miwok lived in the area, possibly calling the area "Bali-N". Bolinas and present-day Stinson Beach were once encompassed by Rancho Las Baulines, a Mexican land grant given by Governor Pío Pico to Gregorio Briones in 1846. The first post office in the town of Bolinas opened in 1863. In 1927 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Topeka Capital-Journal
''The Topeka Capital-Journal'' is a daily newspaper in Topeka, Kansas, owned by Gannett. History The paper was formed following numerous name changes and mergers, including the merger of ''The Topeka Daily Capital'' and ''The Topeka State Journal''. Timeline * 1858: The ''Kansas State Record'' starts publishing. * 1873: The ''Topeka Blade'' is founded by J. Clarke Swayze. * 1879: George W. Reed buys the ''Blade'' and changes its name to ''The Kansas State Journal''. * 1879: ''The Topeka Daily Capital'' is founded by Major J.K. Hudson as an evening paper but changes to morning in 1881. * 1885: Frank P. MacLennan buys the ''Journal'' and renames it ''The Topeka State Journal''. * 1888: The ''Capital'' absorbs the ''Commonwealth'', owned by Floyd Perry Baker and his sons, who had earlier bought the ''Kansas State Record''. * 1899: Frederick Oliver Popenoe buys a 51 percent controlling interest in the ''Capital''. * 1900: Charles M. Sheldon, saying " Newspapers should be opera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Associated Press
The Associated Press (AP) is an American non-profit news agency headquartered in New York City. Founded in 1846, it operates as a cooperative, unincorporated association. It produces news reports that are distributed to its members, U.S. newspapers and broadcasters. The AP has earned 56 Pulitzer Prizes, including 34 for photography, since the award was established in 1917. It is also known for publishing the widely used '' AP Stylebook''. By 2016, news collected by the AP was published and republished by more than 1,300 newspapers and broadcasters, English, Spanish, and Arabic. The AP operates 248 news bureaus in 99 countries. It also operates the AP Radio Network, which provides newscasts twice hourly for broadcast and satellite radio and television stations. Many newspapers and broadcasters outside the United States are AP subscribers, paying a fee to use AP material without being contributing members of the cooperative. As part of their cooperative agreement with the AP, most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amateur Radio
Amateur radio, also known as ham radio, is the use of the radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communications. The term "amateur" is used to specify "a duly authorised person interested in radioelectric practice with a purely personal aim and without pecuniary interest;" (either direct monetary or other similar reward) and to differentiate it from commercial broadcasting, public safety (such as police and fire), or professional two-way radio services (such as maritime, aviation, taxis, etc.). The amateur radio service (''amateur service'' and '' amateur-satellite service'') is established by the International Telecommunication Union (ITU) through the Radio Regulations. National governments regulate technical and operational characteristics of transmissions and issue individual station licenses with a unique identifying call sign, which mus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Time Zone
The Pacific Time Zone (PT) is a time zone encompassing parts of western Canada, the western United States, and western Mexico. Places in this zone observe standard time by subtracting eight hours from Coordinated Universal Time ( UTC−08:00). During daylight saving time, a time offset of UTC−07:00 is used. In the United States and Canada, this time zone is generically called the Pacific Time Zone. Specifically, time in this zone is referred to as Pacific Standard Time (PST) when standard time is being observed (early November to mid-March), and Pacific Daylight Time (PDT) when daylight saving time (mid-March to early November) is being observed. In Mexico, the corresponding time zone is known as the ''Zona Noroeste'' (Northwest Zone) and observes the same daylight saving schedule as the U.S. and Canada. The largest city in the Pacific Time Zone is Los Angeles, whose metropolitan area is also the largest in the time zone. The zone is two hours ahead of the Hawaii–Aleut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Universal Time
Universal Time (UT or UT1) is a time standard based on Earth's rotation. While originally it was mean solar time at 0° longitude, precise measurements of the Sun are difficult. Therefore, UT1 is computed from a measure of the Earth's angle with respect to the International Celestial Reference Frame (ICRF), called the Earth Rotation Angle (ERA, which serves as a modern replacement for Greenwich Mean Sidereal Time). UT1 is the same everywhere on Earth. UT1 is required to follow the relationship :ERA = 2π(0.7790572732640 + 1.00273781191135448'' · Tu'') radians where ''Tu'' = ( Julian UT1 date - 2451545.0). History Prior to the introduction of standard time, each municipality throughout the clock-using world set its official clock, if it had one, according to the local position of the Sun (see solar time). This served adequately until the introduction of rail travel in Britain, which made it possible to travel fast enough over long distances to require continuous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Half Moon Bay, California
Half Moon Bay is a coastal city in San Mateo County, California, United States, approximately south of San Francisco. Its population was 11,795 as of the 2020 census. Immediately at the north of Half Moon Bay is Pillar Point Harbor and the unincorporated community of Princeton-by-the-Sea. Half Moon Bay is known for Mavericks, a big-wave surf location. It is called Half Moon Bay because of its crescent shape. Originally an agricultural outpost to Mission San Francisco de Asís, the town was founded in the 1840s first as San Benito, and then as is its Anglo fishing community grew, it was renamed Spanishtown. In 1874, it was again renamed to Half Moon Bay. After rail and road connections in the early 1900s, the town grew. The foggy weather of the coast made the town a popular destination for booze-running during Prohibition. The city's infrastructure is heavily integrated with the coast, including the Pillar Point Harbor, major roads and fire department. The economy of Half M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seattle Post-Intelligencer
The ''Seattle Post-Intelligencer'' (popularly known as the ''Seattle P-I'', the ''Post-Intelligencer'', or simply the ''P-I'') is an online newspaper and former print newspaper based in Seattle, Washington, United States. The newspaper was founded in 1863 as the weekly ''Seattle Gazette'', and was later published daily in broadsheet format. It was long one of the city's two daily newspapers, along with ''The Seattle Times'', until it became an online-only publication on March 18, 2009. History J.R. Watson founded the ''Seattle Gazette'', Seattle's first newspaper, on December 10, 1863. The paper failed after a few years and was renamed the ''Weekly Intelligencer'' in 1867 by new owner Sam Maxwell. In 1878, after publishing the ''Intelligencer'' as a morning daily, printer Thaddeus Hanford bought the ''Daily Intelligencer'' for $8,000. Hanford also acquired Beriah Brown's daily ''Puget Sound Dispatch'' and the weekly ''Pacific Tribune'' and folded both papers into the ''Inte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PACTOR
PACTOR is a :Radio modulation modes, radio modulation mode used by amateur radio operators, Marine and mobile radio telephony, marine radio stations, military or government users such as the US Department of Homeland Security, and radio stations in isolated areas to send and receive digital information via radio. PACTOR is an evolution of both AMTOR and packet radio; its name is a portmanteau of these two technologies' names. PACTOR uses a combination of simple Frequency-shift keying, FSK modulation, and the Automatic repeat request, ARQ protocol for robust error detection and data throughput. Generational improvements to PACTOR include PACTOR II, PACTOR III, and PACTOR IV which are capable of higher speed transmission. PACTOR is most commonly used on frequencies between 1 MHz and 30 MHz. History PACTOR ''(Latin: The mediator)'' was developed by Special Communications Systems GmbH (SCS) and released to the public in 1991. PACTOR was developed in order t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CLOVER2000
CLOVER is the name of a series or class of modem modulation techniques (“waveforms”) specifically designed for use over high frequency (HF) radio systems. * CLOVER-II was the first CLOVER waveform sold commercially, developed by Ray Petit, W7GHM, and HAL Communications in 1990–92. * CLOVER-2000 is a higher-rate and wider bandwidth version of CLOVER developed in 1995. * CLOVER-400 is a special 400 Hz wide waveform that was developed for Globe Wireless. Modulation schemes In ARQ mode, all CCB's (CLOVER Control Blocks) use BPSK modulation and data blocks may be sent using BPSK, QPSK, 8PSK (see phase-shift keying), 8P2A, or 16P4A (see QAM) modulation. Data is sent in 255-byte blocks. The FEC broadcast mode of CLOVER-2000 is usually disabled although special formats are available for specific applications. The coding polynomial protocol could be shared after payment in Bit Coin Radio Interface requirements for CLOVER-2000 The CLOVER waveform offers high performance, error ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RTTY
Radioteletype (RTTY) is a telecommunications system consisting originally of two or more electromechanical teleprinters in different locations connected by radio rather than a wired link. Radioteletype evolved from earlier landline teleprinter operations that began in the mid-1800s. The US Navy Department successfully tested printing telegraphy between an airplane and ground radio station in 1922. Later that year, the Radio Corporation of America successfully tested printing telegraphy via their Chatham, Massachusetts, radio station to the R.M.S. Majestic. Commercial RTTY systems were in active service between San Francisco and Honolulu as early as April 1932 and between San Francisco and New York City by 1934. The US military used radioteletype in the 1930s and expanded this usage during World War II. From the 1980s, teleprinters were replaced by personal computers (PCs) running software to emulate teleprinters. The term radioteletype is used to describe both the original radio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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