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Recent content by abishek

  1. A

    Can I do video editing in Matlab?

    is video editing possible in matlab...how to import video files? and manipulate>?
  2. A

    Which book is best suited for studying digital electronics?

    digital electronics wakerley its too wide a topic...if u r looking at basics and are totalyly new to it go for mano or givone if u r looking at it a slightly advanced level then u can look into books on vhdl etc
  3. A

    Is FM radio digital or analog ?

    Re: fm radio fm is analog transmission......its clearer than am only bcos of the power spectral density being larger....the noise being spread in all the β+1 side bands on both sides....it can be digitised but i dont know if its actually done....also bcos the power wasted in the carrier is much...
  4. A

    image frequency in fm recievers

    image frequency if a certain fm receiver is tuned to say 90.6 mhz....at what frequency does it detect the image frequency??? also what happens if a gadget at home operates at a frequency of that of a radio station(local)
  5. A

    How does varactor diode help produce fm?

    doping profile of 1n4007 how does it help produce fm ??
  6. A

    What is the leak bias in an amplifier?

    leak bias what is leak bias in plate modulated class c amplifier??
  7. A

    bandwidth of amplifiers in cascade

    bandwidth of am if there are n stages of amplification each with bandwidth = b what is the effective b.w of all n amplifiers in cascade?........ i found it as b.(2^1/n -1 )^.5......how?
  8. A

    doubt in basics of doping

    when an intinsic semiconductor is doped.......the no of holes/electrons increase....but the material is still neutral.....is it because of the ions formed( donors becoming + bcos they lose e and acceptors - bcos they accept an electron??).... when a donor loses an electron is a hole formed or...
  9. A

    mp3 player and semiconductor memories

    what is the prinicple behind semiconducotr memories for mp3 players that have small capacity....... why do large memories come only as magnetic hard drives....? and y is semicnductor shock proof.... does nybody have the internal circuitry of a mp3player???
  10. A

    what are the design of attenuators based upon

    calculate t-type attenuator for t type,lattice type and pi types how are the resistors designed and what is the basis of the design eqns
  11. A

    what is the principle of a mixer?

    what is the use of up/dpwn mixing and where are these used
  12. A

    how does am get generated in a transistor

    say using a bf194 or some transisitor and giving m(t) at collector and carrier at base and with a bias at the bias how do we get am at the collector? also called COLLECTOR AMPLITUDE MODULATOR somebody pls gelp thanx
  13. A

    Looking for BJT class C operation

    calss c operation can somebody give me good links to bjt class c operation thanx
  14. A

    Project ideas for post-graduate studies

    Re: project for gre hi there....am in the same boat as u... please share any info u get regarding this... have u laready done something and when do uplan to take up gre?
  15. A

    How electromagnetic waves travel through air and vacuum?

    Re: electromagnetic waves the link shows a tem....that is ok and quite easily understood but what about a te or tm wave which have an electric or magnetic component along thee direction of travel itself??.....like a TM wave has a electric filed component in its direction of propagation right...
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