Mod 3,4,5

Which is NOT a benefit of the spread spectrum?

• Fading of Signal

• Relatively high security

• Coexistence of several signal

• Hard to detect

Which method of encoding is also known as biphase encoding?

• Manchester

• Clock

• Data

• Differential Manchester Encoding

What is the minimum sampling frequency from analog to digital frequency known as?

• Nyquist Rule

• Harry Nyquist

• Nyquist Frequency

• Nyquist Sampling

What is sent at the end of each PCM transmit frame?

• Horizontal Signal

• Sync Signal

• Sync Pulse

• Vertical Signal

Where is the program that performs mathematical operations and other manipulators are stored?

• RAM

• ROM

• CPU

• DISK

In synchronous transmission what is sent at the start of the transmission?

• 2 8bit synoronous code

• 8bit synoronous code

• 2 6bit synoronous code

• 8 2bit synoronous code

How long will serial transmitter take to transfer 4 bytes of data if each bit is transmitted at 5 us?

• 160 µ

• 160 n

• 160

• 160 m

In a frequency hopping spread spectrum the rate of synthesizer frequency change is higher or lower than data rate?

• Lower

• Higher

What is the number of voltage level increments for an 8 bit analog to digital converter?

• 256

• 255

• 215

• 257

Photodiode converts ______ into electrical signal?

• Sound Energy

• Thermal Energy

• Light Energy

• Kinetic Energy