preselector


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preselector

(ˌpriːsɪˈlɛktə)
n
(Telecommunications) a system that automatically connects a caller to a free line
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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References in periodicals archive ?
What altitude do you put in the altitude preselector? The safe answer is to only select the altitude for which you're cleared.
Bearing in mind that the wonder of the world in the primary school classroom at the time was the preselector gearbox and cars did not even have seat belts, it was little wonder that I treated this view with derision and could not suppress a smile.
The preselector typically is based on YIG technology and has a bandwidth of about 50 MHz--significantly less than the IF.
Solidly, built and durable they featured torsion-bar front suspension, hydro-mechanical brakes and a preselector transmission option.
This stage is also known as a preselector stage (the front end of the receiver).
Each tuner is provisioned with one of seven different 400 MHz bandwidth preselector filters covering the RF input range from 800 MHz to 3 GHz.
Although technically speaking the DB18 uses manual transmission, the car actually has a four-speed Wilson Preselector gearbox in tandem with the Daimler Fluid Flywheel.
He says: "These cars were very popular with the ladies because of the preselector gearbox which made it easy to drive.
This seven-channel RF preselector filter provides seven selectable RF filter channels over a wide frequency range with ultimate rejections out to 18 GHz.
A Tek article (5) considers 35 to 40 MHz as the practical YIG preselector bandwidth.