frequency of maximum transmission
1Frequency of optimum transmission — Frequency of optimum transmission, in the transmission of radio waves via ionospheric reflection, is the highest effective (i.e. working) frequency that is predicted to be usable for a specified path and time for 90% of the days of the month. It… …
2Maximum usable frequency — (MUF) describes, in radio transmission, using reflection from the regular ionized layers of the ionosphere, the upper frequency limit that can be used for transmission between two points at a specified time, independent of transmitter power. This …
3Frequency-hopping spread spectrum — (FHSS) is a method of transmitting radio signals by rapidly switching a carrier among many frequency channels, using a pseudorandom sequence known to both transmitter and receiver. A spread spectrum transmission offers three main advantages over… …
4Transmission Voie-Machine — (TVM), or track to train transmission , is a form of in cab signalling used on lignes à grande vitesse (high speed railway lines based on the French TGV system) that differs considerably from signalling on conventional railway lines. Because TGV… …
5Transmission d'energie electrique sans fil — Transmission d énergie sans fil Demande de traduction Wireless energy transfer → …
6Transmission d'énergie électrique sans fil — Transmission d énergie sans fil Demande de traduction Wireless energy transfer → …
7Frequency-shift keying — Passband modulation v · d · e Analog modulation AM · …
8Transmission electron microscopy — A TEM image of the polio virus. The polio virus is 30 nm in size.[1] Transmission electron microscopy (TEM) is a microscopy technique whereby a beam of electrons is transmitted through an ultra thin specimen, interacting with the specimen as it… …
9Maximum power transfer theorem — In electrical engineering, the maximum power transfer theorem states that, to obtain maximum external power from a source with a finite internal resistance, the resistance of the load must be equal to the resistance of the source as viewed from… …
10Frequency modulation — See also: Amplitude modulation In telecommunications, frequency modulation (FM) conveys information over a carrier wave by varying its frequency (contrast this with amplitude modulation, in which the amplitude of the carrier is varied while its… …
