An acronym for AMateur Teleprinting Over Radio or AMateur Teletype over Radio.Īnalog (also analogue): a continuously varying signal.ĪNC, ANR : Active noise control, active noise reduction. Usually abbreviated to AmpsĪmplitude : the height of a wave from the average or median position.ĪMSAT : The name for amateur radio satellite organizations world-wide, but in particular the Radio Amateur Satellite Corporation.Īmplifier : A device that is used to increase voltage, current or power.ĪMTOR : A specialised form of RTTY protocol.
AF is in the range 20Hz to 20 000HzĪFC : Automatic Frequency Control – used to prevent drift in FM receiversĪGC : Automatic Gain Control – a feedback system to reduce fading by automatically adjusting gainĪGL : (Height) Above Ground Level, for antenna installations.ĪLC : Automatic Level Control – a feedback system in the transmitter output amplifier used to prevent overload.Īmpere :(A) The unit used for measurement of current.
#Ehf echolink stations series#
A device that samples an analogue wave and converts it into a digital signal, in which a series of numbers is used to represent the amplitude of the original wave.ĪDIF : Amateur Data Interchange Format, a standard specification for format of exported logbook files.Īdmittance : The reciprocal of impedance of a component in a series or parallel tuned circuit.ĪF : Abbreviation for Audio Frequency.
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