error-rate performance of a modem
1Modem — For other uses, see Modem (disambiguation). A modem (modulator demodulator) is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information. The… …
2Modem für Parallelübertragung — Parallelmodem offen, Typ D20P A02 (01/1978) Parallelmodem geschlossen …
3Network performance — refers to the service quality of a telecommunications product as seen by the customer. It should not be seen merely as an attempt to get more through the network. The following list gives examples of Network Performance measures for a circuit… …
4Phase-shift keying — Passband modulation v · d · e Analog modulation AM · …
5Quadrature amplitude modulation — (QAM) (Pronounced IPA|kwa:m) is a modulation scheme which conveys data by changing ( modulating ) the amplitude of two carrier waves. These two waves, usually sinusoids, are out of phase with each other by 90° and are thus called quadrature… …
6telecommunication — [tel΄ə kə myo͞o΄ni kā′shən] n. [also pl., with sing. or pl. v.] communication by electronic or electric means, as through radio, telephone, telegraph, television, or computers * * * tel·e·com·mu·ni·ca·tion (tĕlʹĭ kə myo͞o nĭ kāʹshən) n. 1. The… …
7Spectral efficiency — Spectral efficiency, spectrum efficiency or bandwidth efficiency refers to the information rate that can be transmitted over a given bandwidth in a specific communication system. It is a measure of how efficiently a limited frequency spectrum is… …
8Frame relay — In the context of computer networking, frame relay consists of an efficient data transmission technique used to send digital information. It is a message forwarding relay race like system in which data packets, called frames, are passed from one… …
9Orthogonal frequency-division multiplexing — Passband modulation v · d · e Analog modulation AM · …
10ADSL Max — is a cover term for the UK telco BT s range of commercial ADSL services that are rate adaptive and are deployed over BT phone lines. BT s ADSL Max services were launched in March 2006. Contents 1 Rate adaptive service 2 Max Premium 3 …
