Free Essay

Comparative Study of Am Fm Pm Ask Fsk Psk

In:

Submitted By dhaval0024
Words 262
Pages 2
| Advantages | Disadvantages | Applications | AM | 1. It is simple to implement 2. There is no need of any specialised components, thus AM is very cheap. | 1. The power usage is not efficient. 2. Bandwidth usages is not efficient. ( Bandwidth required is twice the highest audio frequency ) 3. As most noise are amplitude based, AM is sensitive to it. | 1. Broadcast transmission 2. Air band radio 3. Single sideband | FM | 1. SNR is high, i.e. It is resistive to noise 2. It has good efficiency. | 1. Complicated receiver and transmitter. 2. It cannot be sent over long distances. | 1. Broadcast and Radio communication. | PM | 1. It is easy to implement PM compared to FM. 2. It is resistant to noise. 3. It requires less bandwidth. | 1. Encoding and decoding the signal is harder. | 1. Radio wave transmission 2. GSM 3. Wi-Fi 4. Satellite television | ASK | 1. It is easy to generate. 2. It is not costly. | 1. It is less resistive to noise. 2. SNR is less. | 1. Used mainly for radio frequencies | FSK | 1. It is more resistant to noise compared to ASK 2. Power requirement is constant. 3. Not costly. 4. Easy to implement. | 1. The required bandwidth is twice than ASK. | 1. It is used in high frequency radio transmission. 2. Used in GSM mobile. 3. Used for long distance transmission. | PSK | 1. It is resistive to noise. 2. It is robust. 3. Bandwidth is same as ASK. | 1. It is more complex. | 1. It is used in satellite communication. 2. It is used in wireless LAN. |

Similar Documents

Free Essay

Nit-Silchar B.Tech Syllabus

...NATIONAL INSTITUTE OF TECHNOLOGY SILCHAR Bachelor of Technology Programmes amï´>r¶ JH$s g§ñWmZ, m¡Úmo{ à VO o pñ Vw dZ m dY r V ‘ ñ Syllabi and Regulations for Undergraduate PROGRAMME OF STUDY (wef 2012 entry batch) Ma {gb Course Structure for B.Tech (4years, 8 Semester Course) Civil Engineering ( to be applicable from 2012 entry batch onwards) Course No CH-1101 /PH-1101 EE-1101 MA-1101 CE-1101 HS-1101 CH-1111 /PH-1111 ME-1111 Course Name Semester-1 Chemistry/Physics Basic Electrical Engineering Mathematics-I Engineering Graphics Communication Skills Chemistry/Physics Laboratory Workshop Physical Training-I NCC/NSO/NSS L 3 3 3 1 3 0 0 0 0 13 T 1 0 1 0 0 0 0 0 0 2 1 1 1 1 0 0 0 0 4 1 1 0 0 0 0 0 0 2 0 0 0 0 P 0 0 0 3 0 2 3 2 2 8 0 0 0 0 0 2 2 2 2 0 0 0 0 0 2 2 2 6 0 0 8 2 C 8 6 8 5 6 2 3 0 0 38 8 8 8 8 6 2 0 0 40 8 8 6 6 6 2 2 2 40 6 6 8 2 Course No EC-1101 CS-1101 MA-1102 ME-1101 PH-1101/ CH-1101 CS-1111 EE-1111 PH-1111/ CH-1111 Course Name Semester-2 Basic Electronics Introduction to Computing Mathematics-II Engineering Mechanics Physics/Chemistry Computing Laboratory Electrical Science Laboratory Physics/Chemistry Laboratory Physical Training –II NCC/NSO/NSS Semester-4 Structural Analysis-I Hydraulics Environmental Engg-I Structural Design-I Managerial Economics Engg. Geology Laboratory Hydraulics Laboratory Physical Training-IV NCC/NSO/NSS Semester-6 Structural Design-II Structural Analysis-III Foundation Engineering Transportation Engineering-II Hydrology &Flood...

Words: 126345 - Pages: 506

Free Essay

Swn Jdkjkjje Jne

...Employment News 31 May - 6 June 2014 www.employmentnews.gov.in 21 UNION PUBLIC SERVICE COMMISSION EXAMINATION NOTICE NO. 09/2014-CSP (LAST DATE FOR RECEIPT OF APPLICATIONS : 30/06/2014) DATE :31.05.2014 CIVIL SERVICES EXAMINATION, 2014 (Commission’s website-http://upsc.gov.in) F. No. 1/5/2013-E.I(B) : Preliminary Examination of the Civil Services Examination for recruitment to the Services and Posts mentioned below will be held by the Union Public Service Commission on 24th Aug., 2014 in accordance with the Rules published by the Department of Personnel & Training in the Gazette of India Extraordinary dated 31st May, 2014. (i) Indian Administrative Service. (ii) Indian Foreign Service. (iii) Indian Police Service. (iv) Indian P & T Accounts & Finance Service, Group ‘A’. (v) Indian Audit and Accounts Service, Group ‘A’. (vi) Indian Revenue Service (Customs and Central Excise), Group ‘A’. (vii) Indian Defence Accounts Service, Group ‘A’. (viii) Indian Revenue Service (I.T.), Group ‘A’. (ix) Indian Ordnance Factories Service, Group ‘A’ (Assistant Works Manager, Administration). (x) Indian Postal Service, Group ‘A’. (xi) Indian Civil Accounts Service, Group ‘A’. (xii) Indian Railway Traffic Service, Group ‘A’. (xiii) Indian Railway Accounts Service, Group 'A'. (xiv) Indian Railway Personnel Service, Group ‘A’. (xv) Post of Assistant Security Commissioner in Railway Protection Force, Group ‘A’ (xvi) Indian Defence Estates Service, Group...

Words: 47693 - Pages: 191

Free Essay

Whirlpool

...Employment News 11 - 17 February 2012 www.employmentnews.gov.in 21 Union Public Service Commission EXAMINATION NOTICE NO. 04/2012-CSP DATED 11.02.2012 (LAST DATE FOR RECEIPT OF APPLICATIONS : 05.03.2012) CIVIL SERVICES EXAMINATION, 2012 (Commission's website - http://www.upsc.gov.in) F. No. 1/4/2011-E.I(B) : Preliminary Examination of the Civil Services Examination for recruitment to the Services and Posts mentioned below will be held by the Union Public Service Commission on 20th May, 2012 in accordance with the Rules published by the Department of Personnel & Training in the Gazette of India Extraordinary dated 4th February, 2012. (i) Indian Administrative Service. (ii) Indian Foreign Service. (iii) Indian Police Service. (iv) Indian P & T Accounts & Finance Service, Group ‘A’. (v) Indian Audit and Accounts Service, Group ‘A’. (vi) Indian Revenue Service (Customs and Central Excise), Group ‘A’. (vii) Indian Defence Accounts Service, Group ‘A’. (viii) Indian Revenue Service (I.T.), Group ‘A’. (ix) Indian Ordnance Factories Service, Group ‘A’ (Assistant Works Manager, Administration). (x) Indian Postal Service, Group ‘A’. (xi) Indian Civil Accounts Service, Group ‘A’. (xii) Indian Railway Traffic Service, Group ‘A’. (xiii) Indian Railway Accounts Service, Group 'A'. (xiv) Indian Railway Personnel Service, Group ‘A’. (xv) Post of Assistant Security Commissioner in Railway Protection Force, Group ‘A’ (xvi) Indian Defence Estates Service, Group ‘A’. (xvii) Indian Information...

Words: 50586 - Pages: 203

Premium Essay

Gate

...ate Aptitude Test in Engineering GATE 2014 Brochure Table of Contents 1. Introduction .............................................................................................................1 2. About GATE 2014 ......................................................................................................1 2.1. Financial Assistance ............................................................................................................................ 1 2.2 Employment ............................................................................................................................................ 2 2.3 Administration ....................................................................................................................................... 2 3.1 Changes Introduced in GATE 2013 that will continue to remain in force for GATE 2014 .......................................................................................................................................................... 3 4.1 Eligibility for GATE 2014 ................................................................................................................... 4 4.2 GATE Papers ............................................................................................................................................ 5 4.3 Zone-Wise List of Cities in which GATE 2014 will be Held ................................................... 6 4.4 Zone-Wise List of Cities for 3rd...

Words: 32784 - Pages: 132

Free Essay

Engineering

...-Aa posteriori distribution a priori distribution A.C. pulse abandoned connection abbreviated address calling abend aberration abnormal end abnormal reflection abnormal termination abort sequence abort, to aborted connection absolute code absolute delay absolute error absolute error of measurement absolute instruction absolute instrument absolute pressure absolute stability of a system absolute system of electrical units absolute-value device absolutely stable system absolutely summable absorb, to absorbant absorbing state absorption cross-section absorption loss absorption modulation absorption absorption spectrum absorption trap absorptive attenuator abstract abstract symbol abstract syntax tree abstraction AC AC/DC converter accelerate, to accelerated test accelerating relay acceleration of gravity sonsal dağılım önsel dağılım almaşık akım darbesi yarıda kalan bağlantı kısa numarayla arama olağandışı sonlanma sapınç olağandışı son olağandışı yansıma olağandışı son durdurma dizisi (bitirmeden) durdurmak yarıda kalan bağlantı makina dilindeki kod, mutlak kod mutlak gecikme mutlak hata mutlak ölçüm hatası makina dilindeki komut, mutlak komut mutlak ölçü aleti mutlak basınç bir dizgenin mutlak kararlılığı elektrik birimlerinin mutlak sistemi mutlak değer aygıtı mutlak kararlı dizge mutlak toplanır soğurmak soğurgan soğurucu durum etkin soğurma alanı soğurum yitimi enerji soğurum kiplenimi soğurulma, soğurum soğurum izgesi soğurum tuzağı soğurgan zayıflatıcı 1) öz; 2) soyut soyut...

Words: 38690 - Pages: 155

Free Essay

Maglev

...*3963103* [3963] – 103 T.E. (Petroleum) (Semester – I) Examination, 2011 DRILLING & PRODUCTION OPERATIONS (2003 Course) Time : 3 Hours Max. Marks : 100 Instructions : 1) Question Nos. 1 and 5 are compulsory. Out of the remaining attempt 2 questions from Section I and 2 questions from Section II. 2) Answers to the two Sections should be written in separate books. 3) Neat diagrams must be drawn wherever necessary. 4) Black figures to the right indicate full marks. 5) Use of Logarithmic Tables, Slide Rule, Mollier Charts, Electronic Pocket Calculator and Steam Tables is allowed. 6) Assume suitable data, if necessary. SECTION – I 1. What are different systems on a drilling rig ? Explain any one in detail with suitable diagramme. 18 2. a) Calculate Bottom hole pressure if well depth is 2500 m and mud weight is 1.2 gm/cc. b) Calculate mud weight if mud gradient is 0.87 psi/ft. ′ c) Calculate volume bbl/meter for drill pipe O.D. = 5′ inch and I.D. = 4.276 inch. 2 2 2 10 8 8 16 d) Draw circulation system on a drilling rig. 3. a) Discuss IADC classification of a bit in details. b) Discuss different factors affecting rate of penetration in details. 4. Write short note on : i) Coring ii) Fishing tools iii) BOP iv) Directional well P.T.O. [3963] – 103 -2- *3963103* SECTION – II 5. a) Discuss different types of casings and function of the casings in brief. b) Discuss different types of well completion techniques. 6. a) Discuss primary cementation process with...

Words: 172166 - Pages: 689