beam transmitter
61surveying — /seuhr vay ing/, n. 1. the science or scientific method of making surveys of land. 2. the occupation of one who makes land surveys. 3. the act of one who surveys: The surveying required nearly two days. [1425 75; late ME: act of examining… …
62fax — /faks/, Telecommunications. n. 1. facsimile (def. 2). adj. 2. facsimile (def. 5). v.t. 3. to transmit a facsimile of (printed matter, photographs, or the like) electronically: Fax the information to all our branch offices. [by shortening and resp …
63Indian Head test card — The Indian Head Test Card was a black and white television test pattern which was introduced in 1939 by RCA of Harrison, New Jersey as a part of the RCA TK 1 Monoscope. 20th century television later became so important socially that this purely… …
64Shortwave radio — Shortwave can also refer to a shortwave trough meteorology. A solid state, analog shortwave receiver Shortwave radio refers to the upper MF (medium frequency) and all of the HF (high frequency) portion of the radio spectrum, between… …
65Horn antenna — Pyramidal microwave horn antenna, with a bandwidth of 0.8 to 18 GHz. A coaxial cable feedline attaches to the connector visible at top. This type is called a ridged horn; the curving fins visible inside the mouth of the horn increase the antenna… …
66Orfordness transmitting station — The Orfordness transmitting station is a major (though now, little used) radio broadcasting facility at Orford Ness on the Suffolk coast in the UK. It is designed to transmit powerful medium wave (AM) signals to much of Europe on two frequencies… …
67Sonar — This article is about underwater sound propagation. For atmospheric sounding, see SODAR. For other uses, see Sonar (disambiguation) …
68Passive radar — systems (also referred to as passive coherent location and passive covert radar) encompass a class of radar systems that detect and track objects by processing reflections from non cooperative sources of illumination in the environment, such as… …
69List of Kururu's inventions — Many of the storylines in both the manga and the anime versions of Sgt. Frog happen thanks to Sgt. Major Kururu s knack for inventing. His twisted nature combined with Keroro s need to conquer Pokopen/Pekopon work fluidly together, as it gives… …
70Delay line memory — Computer memory types Volatile RAM DRAM (e.g., DDR SDRAM) SRAM In development T RAM Z RAM TTRAM Historical Delay line memory Selectron tube Williams tube …
