Question
We all like to come FIRST and if we easily achieve this result by mugging the stuff, than what is the use of understanding the stuff???
Statements
“Don’t go for the glory by mugging up, Go for passion and glory will follow.” says Jayraj Sagar
“People mistaken marks as knowledge/talent and that are the reason the past and coming generation both was and is practicing this.” says Parth Kalarthi
“Mugging up is nothing else than writing shit on a piece of a paper.” says Pratheesh Prasad
“Saari mark sheets samosa ki dish saaf karne k kaam aayenge, agar tumhe kuch nahi aata. (All mark sheets would be eventually used as garbage if you don’t know the things practically)” says Makwana Amit
“Sometimes in the battle of coming first, we forget that we are learning it for self development.” says Vijay Dhanwani.
What is the Problem?
In your journey of engineering, we come to learn new techniques, new methods, new technology and new theories many more such stuffs. But the problem is that, we exactly don't know that which of the technique is actually practically used and where it is used. Are we using that devices whose theory we have just studied?? Or are we studying the stuff which was never ever used practically??
Due to this lack of practical understanding I personally faced the problem of learning all the theories. I started mugging up all the contents. But soon I realized that why not try to see the actual applications of all this stuffs. So my interest took me on this way of researching and the result was I actually started loving those stuff and understanding that why particular thing is used in this device and It helped me learning new theories very quickly because I can now related the things with the device using particular technique.
The need
In Digital Communication lecture, all guys were sitting doing their own stuff
rather than focusing on what the professor is saying. Some were acting to be
focused and very few actually are. The topic which professor was teaching was based
on Digital Modulation techniques. To be precise, he was teaching QAM (Quadrature Amplitude Modulation). This full form sounds too boring and I personally didn't pay attention to the
theory and was busy in my mind thinking another stuff. So this is the current phase
of almost all the students and classes.
Lets look into another form.
In Digital Communication lecture, all guys were sitting doing their own stuff
rather than focusing on what the professor is saying. Some were acting to be
focused and very few actually are. The topic which professor was teaching was based
on Digital Modulation techniques. To be precise, he was teaching QAM (Quadrature Amplitude Modulation). But this time, before going into theory he asked one question,
Do you the modulation technique used for 3G data transfer???
Why 3G data rate is faster than 2G???
This was the technique to draw attention of the student and to excite them. And actually 3G
data transfer or 3G communication uses 64 QAM modulation technique for faster data
transfer. And I don't think now the professor has to tell the students to pay attention.
And seriously, if the students know the practical application and if they are using
that techniques, I don't think they were ever going to forget this stuff. And Mugging dies here.
The Motto
As the tagline of my blog says, “If you have knowledge and
experience more than others, then share it with others.” I would post the Practical
Application of various theories on the blog. Anyone who doesn’t want to be
mainstream; anyone who wants to understand the things would be entertained for
sure.
Limitation
It’s quite intricate for me, finding the practical
application of every theory but I came up with few interesting ones.As a not so famous quote says that,
So on next Sunday, I'll be posting one article based on practical application of a particular Theory. And will share all the data gathered which I think will be definitely useful to you.
So this was my thinking based on my experiences and I came to this conclusion of writing such articles. So lets see how much this remedy will cure the disease named
Mugging.
#techiesms
1. It is used in Aircraft for communication between station to pilot and vice versa. So why didn't they opt for FM which is less affected to noise as compared to AM. The reason I found is that, AM is used so that multiple stations on the same channel can be received. While in FM, reception of weaker signal is blocked by the stronger signal which is normally known as capture effect.
1. NTSC and PAL are color encoding techniques used in analogue TV and both these encoding techniques uses QAM modulation for encoding the luminance and chrominance information combinedly, for composite video signal.
2. WCDMA(Wideband Code Division Multiple Access) commonly known as 3G connection of our mobile phones also uses QAM. WCDMA uses 64 QAM. 64 QAM has 6 bits per symbol while our 2G connection has only 3 bit per symbol hence 3G is much faster than 2G. 
2. Some of the RF remotes and RF car keys also uses ASK modulation for transmitting digital data over air. While studying about RF car keys, I found that in some of the car keys, every time the button is pressed different data is transmitted so that one can't just simply copy and transmit the same data to unlock the car.
1. This modulation technique is used only for low data transfer rate around 100 bits per second. One application of this technique which we use daily is in IR Remote Control. That remote can be of TV, AC, Radio etc. It works on 38 kHz carrier frequency. 
1. Bluetooth or BLE(Bluetooth Low Energy) which normally used everywhere like in mobile phone, wireless speakers, Laptops, etc uses GFSK( Gaussian Frequency Shift Keying ) modulation technique for data transmission. Difference between GFSK and FSK is nothing but GFSK has an additional Gaussian Filter to reduce the side band power.
1. WiFi has different versions based upon different IEEE standards. Different versions have different speeds and also uses different modulation Techniques. Out of them IEEE 802.11b uses QPSK modulation and 802.11a and g uses 16 or 64 QAM modulation for transmission. Difference between this two is the speed of data transfer. Obviously, 64-QAM is faster than QPSK.
2. Enhanced version of GSM is known as EDGE ( Enhanced Data rates for GSM Evolution ) uses 8-PSK modulation technique for faster data transfer as compared to GSM. GSM uses only 1 bit per symbol for data transfer while EDGE uses 3 bits per symbol for data transfer. It is commonly called as 2.75G network
1. MSK is used with Gaussian filter ( commonly known as GMSK ) is used in GSM mobile communication or 2G network. Gaussian filter is used to reduce the side band power of the spectrum. It's data transfer rate is only 1 bit per symbol. Enhanced version of GSM was developed which is known as EDGE( Enhanced Data rates for GSM Evolution ) which uses 8-PSK modulation which uses 3 bits per symbol, faster than GSM.
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