COMM MIDTERMS REVIEW

Any emission from a transmitter other than thecarrier and sidebands required by the modulation scheme in use.

• spurious signal

• pilot carrier

• compression

• spark gap

the degree of closeness to which the modulation follows the desired ideal theoretical modulation

• frequency accuracy and stability

• spectral purity

• Modulation fidelity

• Frequency agility

Operates at low power, where efficiency is less important than spectral purity.

• driver stage

• multiplier stage

• buffer stage

• oscillator stage

Invented the Colpitts oscillator

• Edward Colpitts

• Edwin Colpitts

• Ed Colpitts

• Eddy Colpitts

literally means "the best class" of amplifier due mainly to their low signal distortion levels and are probably the best sounding of all the amplifier classes

• Class A

• Class B

• Class AB

• Class C

ideal condition for AM

• Vm > Vc

• Vm < Vc

• Vm = Vc

• none of the above

Double-sideband suppressed carrier signals are generated by a circuit called __________

• modulator

• demodulator

• balanced modulator

• balanced demodulator

In SSB, the transmitter output is expressed in terms of _______

• Peak Envelope Power

• Power Carrier

• dBm

• Watts

other term for lattice modulator

• circuit modulator

• balanced modulator

• diode modulator

• diode ring modulator

the process of allowing two or more signals to share the same medium or channel

• half duplex

• modulation

• multiplexing

• full duplex