C: Difference between revisions
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'''Carrier Frequency''' : The centre frequency of a radio signal. | '''Carrier Frequency''' : The centre frequency of a radio signal. | ||
'''Carrier Power''' : The average power supplied to the antenna when no modulation is taking place. | |||
'''[[What is a cavity filter?|Cavity filter]]''' : A very narrow RF filter used to pass one single frequency, common in repeater operations where the receiver must be protected from overload by a transmitter on the same band on the same antenna tower. | '''[[What is a cavity filter?|Cavity filter]]''' : A very narrow RF filter used to pass one single frequency, common in repeater operations where the receiver must be protected from overload by a transmitter on the same band on the same antenna tower. | ||
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'''Circular Polarization''': A method of polarizing the antenna such that the emmitted electric field rotates around the axis of the antenna | '''Circular Polarization''': A method of polarizing the antenna such that the emmitted electric field rotates around the axis of the antenna | ||
'''CLOVER''' : A PSK mode that allows full duplex communications. | '''[[Modes#Clover|CLOVER ]]''' : A PSK mode that allows full duplex communications. | ||
'''CNDX''' : Abbreviation for Conditions | '''CNDX''' : Abbreviation for Conditions | ||
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'''[[Coaxial Cable]]''' : Cable that has a central conductor and an outer shield as the second conductor. Known as coaxial because the cable is cylindrical and the conductors share the same central axis. | '''[[Coaxial Cable]]''' : Cable that has a central conductor and an outer shield as the second conductor. Known as coaxial because the cable is cylindrical and the conductors share the same central axis. | ||
'''[[Resistors#Resistor_colour_bands | Color Code]]''' | '''[[Resistors#Resistor_colour_bands | Color Code]]''' : Also spelt colour code. Coloured bands on resistors and other components that show their value. | ||
'''Condenser''' : old name for [[Capacitors | Capacitor]] | '''Condenser''' : old name for [[Capacitors | Capacitor]] | ||
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'''Conductor''' : A material through which electricity flows easily. | '''Conductor''' : A material through which electricity flows easily. | ||
'''Core''' : The material used in the centre of an [[ | '''Core''' : The material used in the centre of an [[Inductor]] coil. | ||
'''CQ''' : Request for contact - specifically "calling any operator" | '''CQ''' : Request for contact - specifically "calling any operator" | ||
'''[http://www.cq-amateur-radio.com/ CQ Magazine]''' : Published by CQ Communications. | |||
'''Cross Modulation''' : distortion caused by two or more carriers interfering with each other. | '''Cross Modulation''' : distortion caused by two or more carriers interfering with each other. | ||
'''[[CTCSS]]''' : | '''[[CTCSS]]''' : '''C'''ontinuous '''T'''one-'''C'''oded '''S'''quelch '''S'''ystem - a sub-audible tone that is frequently used on repeaters. The signal "opens" the repeater for use. | ||
'''[[Current]]''' : The flow of electricity through a conductor - usually associated with electron movement, but current is actually the transfer of charge between atoms. | '''[[Current]]''' : The flow of electricity through a conductor - usually associated with electron movement, but current is actually the transfer of charge between atoms. | ||
'''CW''' : | '''CW''' : '''C'''ontinuous '''W'''ave - used in [[Morse code]] transmissions. | ||
'''[[Codes and Alphabets#CW Abbreviations |CW Abbreviations]]''' Used by CW operators to reduce the length of transmissions by shortening words or phrases to a 2 or three letter code. | '''[[Codes and Alphabets#CW Abbreviations |CW Abbreviations]]''' Used by CW operators to reduce the length of transmissions by shortening words or phrases to a 2 or three letter code. | ||
Latest revision as of 21:49, 20 December 2010
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C
Callsign A unique identifier for each radio amateur and licensed radio station throughout the world
Capacitor : A passive electronic component composed of two conducting plates separated by a dielectric (insulating material).
Capacitive Hat : Also known as a capacity hat. A system of wires, or at VHF and above a solid metal disk, added to the top of a vertical antenna to reduce its inductance and increase its bandwidth.
Carrier Frequency : The centre frequency of a radio signal.
Carrier Power : The average power supplied to the antenna when no modulation is taking place.
Cavity filter : A very narrow RF filter used to pass one single frequency, common in repeater operations where the receiver must be protected from overload by a transmitter on the same band on the same antenna tower.
Circular Polarization: A method of polarizing the antenna such that the emmitted electric field rotates around the axis of the antenna
CLOVER : A PSK mode that allows full duplex communications.
CNDX : Abbreviation for Conditions
Coaxial Cable : Cable that has a central conductor and an outer shield as the second conductor. Known as coaxial because the cable is cylindrical and the conductors share the same central axis.
Color Code : Also spelt colour code. Coloured bands on resistors and other components that show their value.
Condenser : old name for Capacitor
Conductor : A material through which electricity flows easily.
Core : The material used in the centre of an Inductor coil.
CQ : Request for contact - specifically "calling any operator"
CQ Magazine : Published by CQ Communications.
Cross Modulation : distortion caused by two or more carriers interfering with each other.
CTCSS : Continuous Tone-Coded Squelch System - a sub-audible tone that is frequently used on repeaters. The signal "opens" the repeater for use.
Current : The flow of electricity through a conductor - usually associated with electron movement, but current is actually the transfer of charge between atoms.
CW : Continuous Wave - used in Morse code transmissions.
CW Abbreviations Used by CW operators to reduce the length of transmissions by shortening words or phrases to a 2 or three letter code.