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An RF modulator (radio frequency modulator) is an electronic device used to convert signals from devices such as media players, VCRs and game consoles to a format that can be handled by a device designed to receive a modulated RF input, such as a radio or television receiver. Its input is a baseband signal, which is used to modulate a radio ...
The TI-99/4 and TI-99/4A are home computers released by Texas Instruments in 1979 and 1981, respectively. [ 2 ] Based on Texas Instruments's own TMS9900 microprocessor originally used in minicomputers, the TI-99/4 was the first 16-bit home computer. [ 3 ] The associated TMS9918 video display controller provides color graphics and sprite support ...
The VIC chip outputs Luma+Sync and Chroma video signals, which are combined to create the VIC-20's composite video output. Commodore did not include an RF modulator inside the computer's case because of FCC regulations. It can either be attached to a dedicated monitor or a TV set using the external modulator included with the computer.
Realistic DX-302. The Realistic DX-302 is a general coverage (long-wave, medium-wave, and short-wave) radio manufactured by General Research of Electronics (GRE) of Chiba, Japan and marketed in the United States by Radio Shack (Tandy Corporation) from 1980 through 1982. The radio's theory of operation is based on the principle of the Wadley ...
Vintage amateur radio is a subset of amateur radio hobby where enthusiasts collect, restore, preserve, build, and operate amateur radio equipment from bygone years, such as those using vacuum tube technology. Popular modes of operation include speaking over amplitude modulation (AM), and communicating using Morse code through continuous wave ...
The name Annie is written on the back of the portrait, which primes anyone listening for the name, to know what name to listen for. The EVP was created using a Radio Shack radio "modified to allow it to continually scan through the available AM or FM frequencies without muting the sound." Regarding a general question by the ghost hunter "What ...
Tandy 2000. The Tandy 2000 is a personal computer introduced by Radio Shack in September 1983 based on the 8 MHz Intel 80186 microprocessor running MS-DOS. [ 2 ] By comparison, the IBM PC XT (introduced in March 1983) used the older 4.77 MHz Intel 8088 processor, and the IBM PC/AT (introduced in 1984) would later use the newer 6 MHz Intel 80286.
Video modulation. Video modulation is a strategy of transmitting video signal in the field of radio modulation and television technology. This strategy enables the video signal to be transmitted more efficiently through long distances. In general, video modulation means that a higher frequency carrier wave is modified according to the original ...