Qinterview.com

Most Commonly Asked Job Interview Questions And Answers

125,000+ Member

our android app in store



List some advantages of GSM.


digital communication interview questions and answers

common interview question for fresher and experiences.prepare your job interview with us. get your dream job.most frequently asked interview questions.best interview questions. digital communication for interview questions and answers for fresher and experience. improve interview skills.improve interview confidence.digital communication best interview questions. start your digital communication job interview right now and get your dream jobs. preparation job interview any place and any time.also our android application available here. top digital communication interview questions. best and top asking questions digital communication interview questions with answers.






Note: any question and answer correct or incorrect give you vote. also you know correct answer then you can post your answer or give vote in answer.

my favorites

add to favorite


List some advantages of GSM.

Here are some advantages of GSM :
1. GSM is mature, this maturity means a more stable network with robust features.
2. Less signal deterioration inside buildings.
3. Ability to use repeaters.
4. Talk time is generally higher in GSM phones due to pulse nature of transmission.
5. The availability of Subscriber Identity Modules allows users to switch networks and handset at will.
6. GSM covers virtually all parts of world so international roaming is not a problem.

electronics and communication interview questions
jayvik 0 0


More Answer

Post your Answer



digital communication popular interview questions and answers


favorite 0
votes 0
answers 0
views 4802

Explain the steps involved in demodulating a signal.

Once the signal is coded, modulated and then sent, the receiver must demodulate the signal. This is usually done in two steps :1. Spectrum spreading (e.g., direct sequence or frequency hopping) modulation is removed.2. The remaining information beari... view more
submited by :- on 2013-05-06 19:13:47

favorite 0
votes 0
answers 0
views 1666

What are the various types of numbers for network identity?

Various types of number for network identity are as follows :1. MSISDN ( Mobile station ISDN) Number : It is international mobile subscriber number which is normally called mobile number. It is unique worldwide.2. MSRN ( Mobile Subscriber Routing Num... view more
submited by :- on 2013-05-06 19:17:36

favorite 0
votes 0
answers 0
views 1557

List some advantages of GSM.

Here are some advantages of GSM :1. GSM is mature, this maturity means a more stable network with robust features.2. Less signal deterioration inside buildings.3. Ability to use repeaters.4. Talk time is generally higher in GSM phones due to pulse na... view more
submited by :- on 2013-05-06 19:17:04

favorite 0
votes 0
answers 0
views 1292

What is ionospheric bending?

When a radio wave travels into the ionospheric layer it experiences refraction due to difference in density. The density of ionospheric layer is rarer than the layer below which causes the radio wave to be bent away from the normal. Also the radio wa... view more
submited by :- on 2013-05-06 19:09:27

favorite 0
votes 0
answers 0
views 1053

What are different categories of antenna and give an example of each?

Different categories of antenna are as follows : Wire Antennas - Short Dipole Antenna Microstrip Antennas - Rectangular Microstrip (Patch) Antennas Reflector Antennas - Corner Reflector Travelling Wave Antennas - Helical Antennas&... view more
submited by :- on 2013-05-06 19:07:50

favorite 0
votes 0
answers 0
views 1047

How can a Pseudo Random Noise code be usable?

To be usable for direct sequence spreading, a PN code must meet the following conditions :1. Sequence must be built from 2 levelled numbers.2. The codes must have sharp autocorrelation peak to enable code synchronization.3. Codes must have a low cros... view more
submited by :- on 2013-05-06 19:14:29

favorite 0
votes 0
answers 0
views 1032

What are the advantages of CDMA?

Advantages of CDMa are as follows :1. Frequency diversity : Transmission is spread out over a large bandwidth due to that less affected by noise. If bandwidth is increased S/N ratio increases, which means noise will be reduced.2. Multiplication Resis... view more
submited by :- on 2013-05-06 19:12:31

favorite 0
votes 0
answers 0
views 1029

What are GPRS services?

GPRS services are defined to fall in one of the two categories :- PTP ( Point to point)- PTM ( Point to Multipoint)Some of the GPRS services are not likely to be provided by network operators during early deployment of GPRS due in part to t... view more
submited by :- on 2013-05-06 19:11:51

favorite 0
votes 0
answers 0
views 1021

Explain the concept of frequency re-use.

The whole of the geographical area is divided into hexagonal shape geometrical area called cell and each cell having its own transceiver. Each BTS (cell site) allocated different band of frequency or different channel. Each BTS antenna is designed in... view more
submited by :- on 2013-05-06 19:10:35

favorite 0
votes 0
answers 0
views 1004

Explain radio environment in building.

Building penetration : Building penetration depends on the material used for construction and architecture used. This varies building to building and is based on building construction.Building Height Effect : The signal strength is always higher at t... view more
submited by :- on 2013-05-06 19:16:32

favorite 0
votes 0
answers 0
views 979

What is handover and what are its types?

Handover in mobile communication refers to the process of transferring a call from one network cell to another without breaking the call.There are two types of handover which are as follows :Hard Handoff : hard handoff is the process in which the cel... view more
submited by :- on 2013-05-06 19:08:58

favorite 0
votes 0
answers 0
views 975

What are the advantages of spread spectrum?

SPread spectrum has the following advantages :1. No crosstalk interference.2. Better voice quality/data integrity and less static noise.3. Lowered susceptibility to multipath fading.4. Inherent security.5. Co-existence.6. Longer operating distances.7... view more
submited by :- on 2013-05-06 19:13:09

favorite 0
votes 0
answers 0
views 966

What is CDMA?

CDMA stands for Code Division Multiple Access which uses digital format. In CDMA systems several transmissions via the radio interface take place simultaneously on the same frequency bandwidth. User data is combined at the transmitter’s side with a... view more
submited by :- on 2013-05-06 19:10:06

favorite 0
votes 0
answers 0
views 957

Explain Bluetooth.

Bluetooth is designed to be a personal area network, where participating entities are mobile and require sporadic communication with others. It is omni directional i.e. it does not have line of sight limitation like infra red does. Ericsson started t... view more
submited by :- on 2013-05-06 19:11:08

favorite 0
votes 0
answers 0
views 930

What are the drawbacks of walsh codes?

Walsh codes have the following drawbacks :1. The codes do not have a single, narrow autocorrelation peak.2. The spreading is not over the whole bandwidth; instead the energy is spread over a number of discrete frequency components.3. Although the ful... view more
submited by :- on 2013-05-06 19:15:13


digital communication best Interview Questions have been designed especially to get you acquainted with the nature of questions you may encounter during your interview for the subject of digital communication Programming Language. here some questions that helpful for your interview.