Electronics Midterm Reviewer

It deals with the transmission, reception,

and processing of information.

A collection of electronic circuits and components designed to convert an electrical signal into a signal suitable to the chosen medium.

It is the medium where electronic signals are being sent.

It is a collection of electronic circuits that converts the electronic signal back into its original form.

It is interference that degrades the quality of the information in an electronic communication system.

(1) Oneway (simplex) or two way (half duplex or full duplex),

(2) analog or digital.

The information can be transmitted only in one way. The receiving end can transmit back to the source of information.

The two parties take turns in suing the communication channel.

It is a form of two-way communication where the two parties can transmit information simultaneously.

Possible to transmit and receive simultaneously, but not necessary between the same two locations

An _____________________ is a continuously varying electrical signal.

A ______________ does not vary continuously.

It is the technique processes the information and makes it suitable for the communication medium.

It is the technique allows the transmission of two or more information over a single communication channel.

It is the direct transmission of the electronic signal.

It is the information signal is already compatible with the communication channel and doesn’t need any modification.

It is the process of impressing the baseband signal (intelligence) into a higher frequency signal (carrier).

This technique made it possible to transmit two or more

intelligence in a single communication channel.

A given frequency band for the purpose of its use by one or more terrestrial or space radio communication services or the radio astronomy service under specified conditions.

Entry of a designated frequency channel in the agreed plan, adopted by the ITU, for use by one or more nations for a terrestrial or space radio communication services in one or more identified countries or geographic areas and under specified conditions.

Authorization given by a nation for a radio station to use a radio-frequency channel under specified conditions.

It is the number of cycles that occur in one second

It is is the length travelled by one cycle in meters.

It is the number of times a particular phenomenon occurs in a given period of time expressed in Hertz.

It is the distance between two points of similar cycles of a periodic wave or the distance traveled by an electromagnetic wave during the time of one cycle typically expressed in meters.

The time required for one complete cycle of a repetitive system, or simply the reciprocal of frequency.

It is the constant value of speed of light

It is refers to the range of frequency in an

electromagnetic spectrum.

A single channel (64 Kbps) or some number of 64 Kbps channels (N×64 Kbps), but less than wideband.

It is a multi-channel capacity that is between 1.544 Mbps and 45 Mbps according to U.S. standards (2.048 Mbps-34 Mbps according to European/international standards.)

It is a multi-channel capacity which is 45 Mbps according to U.S. standards and 34 Mbps according to European/international standards.

Signals travel through transmission media, which are not perfect. The imperfection causes signal impairment.

Type of transmission impairment in which the signal loses strength due to the resistance and length of the transmission medium.

The alteration of information in which the original proportions are changed, resulting from a defect in communication system.

Type of transmission impairment in which an outside source such as crosstalk corrupts a signal.

It is in-need of immediate assistance.

It is refer to a situation that requires immediate attention and might conceivably become distress in nature.

It is refer to meteorological information, particularly about storms, hurricanes, etc.

I received your message.

I have completed transmitting and await your reply.

Same as over.

I have completed my communication and do not expect to transmit again.

I have no further traffic. (Sometimes used in place of Out)

Wait for another call or further instructions.

I am changing from one part of the message to another. (Also used to request the received operator to indicate if he has received the portion of the message transmitted thus far.)

Respond to Break