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Radio propagation from the transmitter to the receiver by two or more paths simultaneously. Also called MULTI- PATH TRANSMISSION.

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Device that can be slipped over the plate prong of the output tube 385 output-meter adapter output power of a radio receiver to provide a conventional terminal to which an output meter can be connected during alignment.


Analternating-currentvoltmeter connected to the output of a receiver or amplifier to measure output signal strength in volume units or decibels.


A meter or other device that is connected to a radio receiver to indicate variations in output signal strength for alignment and other purposes, without indicating the exact value of output.


[ENG ACOUS] That portion of an electroacoustic receiver which receives energy from the electric system and converts it into mechanical energy.


Conventional radar, in which the transmitter and receiver are at the same location and share the same antenna;


1. The section of a color television transmitter that transforms the red, green, and blue camera signals into color-difference signals and combines them with the chrominance subcarrier. Also known as color coder; color encoder; encoder. 2. The section of a color television receiver that transforms the color-difference signals into the red, green, and blue signals needed to drive the color picture tube. Also known as color decoder; decoder. 3. A recessed mold in which something is formed or cast.


The section of a superheterodyne receiver that amplifies signals after they have been converted to the fixed intermediate-frequency value by the frequency converter. Abbreviated i-f amplifier.


[ENG ACOUS] Undesirable prolonged sound produced by a radio receiver or audiofrequency amplifier system because of either electric or acoustic feedback.


Cylinder or receiver which contains condensing water coils or tubes.


A racon which transmits in the marine radar frequency band. There are two types of in-band racons, swept-frequency racons and experimental fixed-frequency racons. The transmitter of the sweptfrequency racon sweeps through a range of frequencies within the band to insure that a radar receiver tuned to a particular frequency within the band will be able to detect the signal. The fixed-frequency racon transmits on

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