null signal

См. также в других словарях:

• logisches Null-Signal — loginio nulio signalas statusas T sritis radioelektronika atitikmenys: angl. logical zero signal vok. logisches Null Signal, n rus. сигнал логического 0 , m pranc. signal de zéro logique, m …   Radioelektronikos terminų žodynas

• signal de zéro logique — loginio nulio signalas statusas T sritis radioelektronika atitikmenys: angl. logical zero signal vok. logisches Null Signal, n rus. сигнал логического 0 , m pranc. signal de zéro logique, m …   Radioelektronikos terminų žodynas

• Null fill — is used in radio antenna systems which are located on mountains or tall towers, to prevent too much of the signal from overshooting the nearest part of intended coverage area. Phasing is used between antenna elements to take power away from the… …   Wikipedia

• null — ► ADJECTIVE 1) (usu. in phrase null and void) having no legal force; invalid. 2) having or associated with the value zero. 3) having no positive substance. ► NOUN 1) a dummy letter in a cipher. 2) Electronics a condition in which no signal is… …   English terms dictionary

• Null modem — A null modem adapter Null modem is a communication method to connect two DTEs (computer, terminal, printer etc.) directly using an RS 232 serial cable. The name stems from the historical use of the RS 232 cable to connect two teleprinter devices… …   Wikipedia

• Null (radio) — Yagi Uda antenna polar pattern showing pattern of alternating lobes and nulls In radio electronics, a null is an area or vector in an antenna s radiation pattern where the signal cancels out almost entirely. This can be an advantage, as nulls in… …   Wikipedia

• Null modem — Modem  Pour le MoDem, voir Mouvement démocrate (France). Le modem (mot valise, pour modulateur démodulateur), est un périphérique servant à communiquer avec des utilisateurs distants par l intermédiaire d une ligne téléphonique. Il permet… …   Wikipédia en Français

• Null cipher — A null cipher is an ancient form of encryption where the plaintext is mixed with a large amount of non cipher material. It would today be regarded as a simple form of steganography. Null ciphers can also be used to hide ciphertext, as part of a… …   Wikipedia

• null — I. adjective Etymology: Anglo French nul, literally, not any, from Latin nullus, from ne not + ullus any; akin to Latin unus one more at no, one Date: circa 1567 1. having no legal or binding force ; invalid 2. amounting to nothing ; nil …   New Collegiate Dictionary

• Null (physics) — In physics a null is a point in a field where the field quantity is zero as the result of two or more opposing quantities completely cancelling each other. The field may be scalar, vector or tensor in nature. Common situations where nulls arise… …   Wikipedia

• null — adjective 1》 (usu. in phr. null and void) having no legal force; invalid. 2》 having or associated with the value zero.     ↘Mathematics (of a set or matrix) having no elements, or only zeros as elements. 3》 having no positive substance. noun 1》 a …   English new terms dictionary