Practice Quiz in Wire and Wireless Communications System Part 58

Question 571. If the tuning meter reads low-scale, what would this indicate in facsimile?

Question 572. For PCM, the sampling theorem states that the sampling frequency must be _________ the highest frequency contained in the analog signal.

Question 573. Noise that is non-continuous, consisting of irregular pulse or noise spikes of short duration and of relatively high amplitude.

Question 574. A telephone service wherein calls are rerouted into a preassigned station is called _________.

Question 575. With what type transmitter is fax transmitted on VHF?

Question 576. What tone is used to start fax?

Question 577. The criteria to be considered in designing a telephone system

Question 578. The most commonly used light sensor in a modern fax machine is a

Question 579. It can be defined as any disturbance created in a communications channel by signals in other communications channel.

Question 580. Request for service from the telephone is detected at the Central Office as