traveling-wave antenna
21Microwave — This article is about the electromagnetic wave. For the cooking appliance, see Microwave oven. For other uses, see Microwaves (disambiguation). A microwave telecommunications tower on Wrights Hill in Wellington, New Zealand Microwaves, a subset… …
22Telstar — was the first active communications satellite (launched in 1962), and the first satellite designed to transmit telephone and high speed data communications. Its name is used to this day for a number of television broadcasting satellites.However,… …
23maser — /may zeuhr/, n. a device for amplifying electromagnetic waves by stimulated emission of radiation. Cf. laser. [1950 55; m(icrowave) a(mplification by) s(timulated) e(mission of) r(adiation)] * * * Device that produces and amplifies… …
24Variable capacitor — Rotary variable capacitor A variable capacitor (also known as a variable air condenser ) is a capacitor whose capacitance may be intentionally and repeatedly changed mechanically or electronically. Variable capacitors are often used in L/C… …
25Mars Science Laboratory — Computergrafik von „Curiosity“ auf dem Mars Da …
26Transmission line — This article is about the radio frequency transmission line. For the power transmission line, see electric power transmission. In communications and electronic engineering, a transmission line is a specialized cable designed to carry alternating… …
27Instrument landing system — The Instrument Landing System (ILS) is a ground based instrument approach system that provides precision guidance to an aircraft approaching a runway, using a combination of radio signals and, in many cases, high intensity lighting arrays to… …
28AN/TRC-97A Radio — The AN/TRC 97A Radio Set, or TRC 97, is a radio set that has 24 multiplex channels and 16 telegraph channels connected to an analog radio. The radio set is a fixed terminal that can transmit up to 40 miles straight line of sight at up to 1 watt,… …
29Radio Science Subsystem — The Radio Science Subsystem (RSS) is a spacecraft science instrument. Using various microwave generators the RSS sends out clean signal that ground antennas detect or it may receive signals from earth orbiting Deep Space Network, amplify the… …
30Mariner 4 — Operator NASA Mission type Flyby Flyby of Mars …
