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The digital television transition, also called the digital switchover (DSO), the analogue switch/sign-off (ASO), the digital migration, or the analogue shutdown, is the process in which older analogue television broadcasting technology is converted to and replaced by digital television.
The digital television transition in the United States was the switchover from analog to exclusively digital broadcasting of terrestrial television programming. It was originally set for December 31, 2006, but was delayed several times due to multiple government acts being enforced on broadcasting companies.
The AN/PRC-77 entered service in 1968 during the Vietnam War as an upgrade to the earlier AN/PRC-25.It differs from its predecessor mainly in that the PRC-77's final power amplifier stage is made with a transistor, eliminating the only vacuum tube in the PRC-25, as well as the DC-DC voltage converter used to create the high plate voltage for the tube from the 15 V battery.
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May 1994: ITT wins a sole-source contract for the airborne radio. 1997: ITT became the sole source supplier of the new half-size RT-1523E radio to the US Army. 2006: The RT-1523F/SideHat configuration provides a 2-channel capability. July 2009: ITT wins RT-1523G platform development, $363 million contract. Partnered with Thales Communications Inc.
The AN/PRC-150(C) Falcon II Manpack Radio, is a tactical HF-SSB/ VHF-FM manpack radio manufactured by Harris Corporation. [1] It holds an NSA certification for Type 1 encryption . [ 2 ] The PRC-150 is the manpack HF radio for the Harris Falcon II family of radios, introduced in the early 2000s.
The success of certain applications (mobile radio-telephony, equipment with low power, digital media, various military systems, etc.) naturally has caused an increase in the needs for frequencies from the civilian and military sectors. This has often brought civil administration to have tendencies to decrease the amount of frequencies in the ...
Radio Interoperability Capability-Universal (RIC-U) is an analog-to-digital voice bridge between allies and U.S. troops. After plugging in the RIC-U, Soldiers select the radio they wish to speak on. They then interoperate with the allies' radio voice networks, transmitting and receiving voice messages.