Search results
Results from the WOW.Com Content Network
Digital multimedia broadcasting (DMB) and DAB-IP are both suitable for mobile radio and TV because they support MPEG 4 AVC and WMV9 respectively as video codecs. However, a DMB video subchannel can easily be added to any DAB transmission, as it was designed to be carried on a DAB subchannel.
Patented on March 29, 1988, a cassette tape adapter is a device that allows the use of portable audio players in older cassette decks.Originally designed to connect portable CD players to car stereos that only had cassette players, the cassette tape adapter has become popular with portable media players even on cars that have CD players built in.
Lower prices, new radio stations and marketing have increased the uptake of DAB radio in the UK. [16] Digital radios were first sold as car radios in 1997, priced around £800, with hi-fi tuners costing up to £2,000 being released two years later. [10]
In 1933, Crossley Motors offered a factory fitted car radio for £35. [8] By the late 1930s, push button AM radios were considered a standard feature. In 1946, there were an estimated 9 million AM car radios in use. [9] An FM receiver was offered by Blaupunkt in 1952. In 1953, Becker introduced the AM/FM Becker Mexico with a Variometer tuner ...
The first car audio hard drive-based MP3 player was also released in 1997 by MP32Go and was called the MP32Go Player. It consisted of a 3 GB IBM 2.5" hard drive that was housed in a trunk-mounted enclosure connected to the car's radio system. It retailed for $599 and was a commercial failure. [36]
DAB MUX 1 Digital Radio Cibicom is the gatekeeper of this multiplex broadcasting commercial national radio. DAB MUX 2 National public service stations. DR's 7 channels (including the 10 regional variations of DR P4), as well as the privately owned, public service channel Radio4. DAB MUX 3 Regional and local commercial radio.
The first in-car DAB radios go on sale, at a cost of around £800. 1998. 24 March – The Radio Authority advertises the first national commercial DAB multiplex. The Authority stipulates that the three analogue Independent National Radio stations will have a guaranteed berth on the multiplex. The licence is awarded to the sole applicant, GWR ...
The pentagrid converter is a type of radio receiving valve (vacuum tube) with five grids used as the frequency mixer stage of a superheterodyne radio receiver. The pentagrid was part of a line of development of valves that were able to take an incoming RF signal and change its frequency to a fixed intermediate frequency , which was then ...