a specific band of the radio frequency spectrum used for radio transmissions.
Refers to the number of speakers an amplifier is designed to power; four-channel amplifiers will power four speakers, two-channel amplifiers will drive two speakers, etc. While a two-channel amplifier can drive more than two speakers, each speaker will get less power and use of the fader control will be sacrificed. Note that all radios have either two or four channels of amplification as well and this should be considered when you plan to purchase one.
Official communication routes. The Federal Communications Commission designates a channel (or spectrum frequency) for a radio or television station to ensure that the stations do not interfere with each others' signal. Channels are commonly known to viewers as the numbers on TV dials corresponding to individual local stations. Channel assignments vary widely by market: for example, ABC's affiliate can be channel 7 in one market, but channel 4 in another. Cable systems may designate a channel on their service that differs from the channel location given a broadcast station by the government.
multiple images captured by imaging sensors of the same location, at the same time, but at different wavelengths of light.
Most two-way radios have between 5-10 channels, which are the frequencies the radios operate on. Similar to tuning a radio you select a channel for the best reception – or so you donâ€(tm)t pick up other peopleâ€(tm)s radios.
1. In terms of sales channel, a method of sales and distribution a company chooses to take its product to market. For instance, sales channels have traditionally been retail or direct (as in AMWAY door to door sales); direct marketers have introduced new sales channels, including catalogues (i.e. LL Bean), mail (i.e. Franklin Mint), online (i.e. Amazon), and even telemarketing (i.e. Capital Insurance). 2. In terms of communications, a channel is the media chosen to deliver an advertising message, such as mail, email, newspaper, TV , radio etc
An individual UMTS radio channel is defined in the IMT 2000 standard as having a bandwidth of 5 MHz. This means that an individual UMTS radio channel, for example, ranges from 1900 to 1905 MHz. How many radio channels a UMTS provider can make available to customers depends on which frequency spectrum has been won in the auctioning of UMTS mobile phone frequencies. Each radio channel can transport more than one connection. So that more than one subscriber can use the same channel, multiple access methods such as W-CDMA (FDD), TD-CDMA (TDD) or cdma2000 are used for 3G networks. It nevertheless depends on the service profile of the connection how many connections per channel can be managed at the same time. It is also true that in the planning of the radio network, the effect of cellular respiration for CDMA should be considered.
A range of wavelength intervals selected from the electromagnetic spectrum.