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For example, some systems used two-tone sequential paging to alert a mobile or handheld that a wired phone was trying to call them. Other systems used DTMF. Some used a system called Secode 2805 which transmitted an interrupted 2805 Hz tone (in a manner similar to IMTS signaling) to alert mobiles of an offered call. Some radio equipment used ...
A plant in Lancaster, Pennsylvania, which RCA operated from the late 1940s to June 1986, released more than 250,000 pounds of 1,1,1-trichloroethane pollutants per year from its exhaust stacks. Tests by the United States Environmental Protection Agency (EPA) in the late 1980s and early 1990s, found the groundwater contaminated by ...
Each connection to a telephone set required six wires from the key system: [5] One pair (two wires) carried the talk circuit (tip and ring), one pair carried control information, known as A-Leads, for that line, designated A and A1, and the third pair carried current to a lamp for the specific line key position on the telephone set (L and LG).
In 2009, an agreement was made between Discount Two Way Radio Corporation (DTWR) and Technicolor SA to manufacture Two-way radio products under the RCA brand. [1] [2] RCA Two-way radios is the official sponsor of the United States Bobsled and Skeleton Team for the 2022 Winter Olympic Games in Beijing. [3]
In telephone systems where calls from distant automated exchanges arrive for manual subscribers or non-dialable points, there often would be a ringdown operator (reachable from the distant operator console by dialling NPA+181) who would manually ring the desired subscriber on a party line or toll station. On some systems, this function was ...
Effective July 1, 2009 RCA, which was acquired by TTE/TTL, a China company, terminated all of the RCA Authorized Service Companies who have provided repair services for RCA consumer products for over 60 years. RCA also terminated all of their consumer service employees and shut down. TTE/TTL contracted with DEX to provide repair services.
With a 1 inch hard drive, the Micro Jukebox RD2760/PDP2810 introduced at CES 2003 is a small compact player but with 1.5 GB space. It has an 8-line backlit display. [20] [15] The later Micro Jukebox was released in 2004 with an internal 1.8" hard disk with 4 GB (RD2762) or 5 GB (RD2763FM) space. It also has a rechargeable Li-ion battery. [21]
Satcom, a portmanteau of satellite communications, was a brand of artificial geo-stationary communications satellites originally developed and operated by RCA American Communications (RCA Americom) that facilitated wide-area telecommunications by receiving radio signals from Earth, amplifying them, and relaying them back down to terrestrial ...