MJM Iqbal"s Articles

valoothoor.com
Issue date : 29/5/2004 mwptpay; GJik

Ke;ija ,jo;fs;

nry;Nghd;fs;
 
kUj;Jtj; Jiwapy; NuhNgh
 
Nuhgl;Lfspy; Gj;jprhypj;jdk;
 
tPl;L cgNahf Nuhgl;Lfs;..
Nuhgl;Lfs; tsu;e;j ghij..
 
a+dpNkl;
 
tpz;fyj;jpd; gazk;
 
tpz;ntsp Rw;Wyh
 
gwf;Fk; nuapy; 1 & 2
 
gwf;Fk; igf;Ffs;
 
kpjf;Fk; efuk;;
caukhd fl;blq;fs;
tpz;ntsp kpd;J}f;fp
cyfpd; 8-tJ mjprak;...

mLj;J tUgitfs;
GS^j; njhopy; El;gk; (6/6/04)
 
 

Write to Us

 

Refer to Friends

 

Articles

 

Home Page

nry;Nghd; njhopy; El;gk;


kf;fspd; mj;jpahtrpa cgfuzq;fspy; xd;whf khwptpl;l njhiyNgrp kw;Wk; nry;Nghd;fs; gw;wpa mwptpay;-njhopy; El;g jfty;fs; mwptpay; mjprak; gFjpapy; njhluhf ,lk;ngw;W tUfpwJ. ,e;j thuk; 'nry;Nghd;" njhopy; El;gk; gw;wpa jfty;fs; ,lk;ngWfpwJ.


jPg;ngl;b mstpy; cs;s nry;Nghd;fs; gz;Zk; ml;lfhrq;fs; gw;wp mjprapj;Jg; NghapUg;gPu;fs;!

,J vt;thW nray;gLfpd;wd? vd;w Nfs;tpAk; vohky; ,y;iy.

rhjhuz njhiyNgrpf;Fk; ,jw;Fk; mg;gb vd;djhd; tpj;jpahrk;?

nry;Nghd;fs; vd;gJ xU NubNahjhd;. Mdhy; ,J NubNahit tpl gd;klq;F jpwd;gl;l xU ifr;rhjdk;.

1876-k; Mz;L mnyf;rhz;lu; fpufhk;ngy; fz;Lgpbj;j njhiy NgrpAk;> 1880-fspy; epf;Nfhiy N[];lhtpd; (
Nikolai Jesta) fk;gp apy;yh njhlu;gpd; (Wireless Communication) MzpNtuhd NubNahTk; ,ize;j xU rhjdNk ,d;iwa nry;Nghd;fs;.

nry;Nghd;fs; fz;Lgpbg;gjw;F Ke;ija fhyq;fspy; jq;fs; fhu;fspy; NubNah njhiyNgrpfs; mikj;J ,izg;G Vw;gLj;jpf; nfhz;bUe;jhu;fs;. ,e;j NubNah njhiyNgrp Kiwapy; efuj;jpw;F xd;whf xU kj;jpa Md;nldh NfhGuk; mikf;fg;gl;bUf;Fk;. ,e;jf; NfhGuk; 25 rhdy;fs; nfhz;bUf;Fk;. ,e;j kj;jpa Md;nldh NfhGuj;jpw;F miygug;g fhupd; xU jpwd;kpFe;j miygug;gp (
Transmitter) nghUj;jg; gl;bUf;Fk;. ,it 40 Kjy; 50 iky;fs; tiu miygug;Gk; jpwd; nfhz;lit. ,tw;wpy; 25 rhdy;fs; kl;Lk; ,Ug;gjhy; ngUk; ghyhNdhu; gad;gLj;j Kbahky; NghdJ.

''nry;"" nghwpapay;

Xu; nry;Nghd; nghwpapay; Kiwapy; efuk; KOtJk; ,aq;Ftjw;fhf nry;Nghdpd; Rkhu; 800 mjpu;T vz;fis (
Frequency) Vw;Wf; nfhs;fpwJ. ,e;j Cu;jp efuj;ij gytpj tl;lhuq;fshf (Cell) gpupf;fpwJ. xt;nthU nry;ypd; gug;gsT Rkhu; 26 rJu fp.kP. MFk;. nry;fs; mWq;Nfhz (Hexagon) tbtkhf fzf;fpy; vLj;Jf; nfhs;sg;gLfpwJ. xt;nthU nry;Yf;Fk; xU jiu epiyak; (Base Station) mikf;fg;gl;bUf;Fk;. ,e;epiyak; xU NfhGuk; kw;Wk; NubNah rhjdq;fs; nfhz;l xU rpW fl;blk; nfhz;bUf;Fk;. nry;Nghd;fs; Fiwe;j jpwd; nfhz;l miygug;gp (Low Power Transmitter) nghUj;jg;gl;bUf;Fk;. gy nry;Nghd;fs; 0.6 thl;]; kw;Wk; 3 thl;]; vd;w ,uz;L miy typik (Signal Stretch) nfhz;bUf;Fk;. jiyepiyaKk; Fiwe;j jpwd; nfhz;l miyfis gug;Gk;.

Fiwe;j jpwd; nfhz;l miy gug;gp cgNahfpg;gjhy; fPo;fhZk; ,uz;L rhjdq;fs; Vw;gLfpd;wd.

1. miygug;Gif me;je;j nry;fSf;F cs;s jiuepiyaj;jpw;Fk; nry;NghDf;Fk; ,ilNa eilngWfpwJ. ,jdhy; me;j nry;iy tpl;L ntspNa nry;y tha;g;gpy;iy. ,jdhy; mUfpy; cs;s nry;Yk; mNj 56 mjpu;ntz;iz (
56 Frequency) cgNahfpj;Jf; nfhs;Sk;.

2. kpd;fyk; (
Battery) nfhz;L ,aq;Fk; nry;Nghd;fs; nrytopf;Fk; rf;jp kpfTk; FiwT. Fiwe;j rf;jpapy; ,aq;Fk; vd;gjhy; rpwpa kpd;fyq;fNs NghJkhdJ. ,JNt ifalf;f nry;Nghd;fs; mike;jjw;F Kf;fpa fhuzkhf mike;jJ.

Nkw;$wpa khjpup ,aq;FtJ ''nry;Yyhu; Kiw"" vd;wiof;fg;gLfpwJ. ,k;Kiwf;F mjpf mstpy; jiuepiyaq;fs; Njitg;gLfpd;wd. xU rhjhuz kpfg;ngupa efuk; Rkhu; E}W NfhGuq;fs; nfhz;bUf;Fk;. nry;Nghd;fs; cgNahfpg;gtu;fspd; vz;zpf;if mjpfkhf> mjpfkhf nryTk; Fiwe;J nfhz;Nl NghFk;.

xt;nthU efuj;jpy; cs;s xt;nthU Cu;jpAk; (Carrier) nry; njhiyNgrp KLf;F mYtyfj;Jld; (Mobile Telephone Switching Office) ,izf;fg; gl;bUf;Fk;. ,e;j mYtyfk; jiutop ,izg;Gg; ngw;w (Landline Phone) njhiy Ngrp ,izg;Gfis ifahSk;. mNjhL me;j tl;lhuj;jpy; cs;s jiu epiyaq;fisAk; fl;Lg;gLj;Jk;. nry;Yyhu; Kiwapy; nfl;bf; fhuj;jdj;jpd; cr;rk; vd;gJ efuj;ij rpwpa rpwpa nry;yhf gpupg;gNj. ,jd; %yk; ngUk; ghyhd mjpu;ntz;fs; (Frequency) efuk; KOtJk; kW cg Nahfj;jpw;F cl;gLj;jg;gl;L gy Nfhbf;fzf;fhd kf;fs; nry; Nghd;fs; cgNahfpf;Fk; tha;g;ig Vw;gLj;JfpwJ.

nry;Nghd; FwpaPl;L Kiwfs;
(
Cell Phone Codes)

midj;J nry;Nghd;fs; jdpg;gl;l FwpaPl;L KiwAld; xUq;fpize;J ,Uf;Fk;. ,e;jf; FwpaPLfs; njhiyNgrp> njhiy Ngrpapd; nrhe;jf;fhuu; kw;Wk; Nrit mspg;gtu;fisg; gw;wp mwpe;J nfhs;tjw;F gad;gLj;jg;gLfpwJ.

* kpd;dZ njhlu; vz;

(
Electronic Serial Number-ESN)

nry;Nghd; vg;nghOJ jahupf;fg;gl;lJ vd;gij 32 ,ul;il ,yf;f vz;khdj;jpy; (
Bit) eputikg;G (Programme) nra;ag;gl;bUf;Fk;.

* nry;Nghd; milahs vz; (Mobile Identification Number-MIN):

cq;fs; njhiyNgrp vz;zpypUe;J 10 ,ul;il ,yf;f vz; khdkhf toptU (
Derive) nra;ag; gl;bUf;Fk;.

* Kiwik milahsf; FwpaPL (System Identification Code-SID):

xt;nthU Cu;jpf;Fk; 5 ,yf;f vz;
FCC-ahy; toq;fg;gl;bUf;Fk;.

ESN FwpaPL njhiyNgrpapd; xUq;fpize;j mq;fkhf fUjg;gLfpwJ. MIN kw;Wk; SID FwpaPLfs; nry;Nghid ePq;fs; nraY}f;fk; (Activate) nra;Ak; nghOJ eputikg;G nra;ag;gLfpwJ.

nry;Nghdpd; vz; Kfg;G ml;ilapy;
`*#06#' mOj;Jtjpdhy; ESN FwpaPL ntspg;gl;L nry;Nghd; jahupf;fg;gl;l ehs; njupatUk;. (ngUk;ghyhd njhiyNgrpfspy;). ,e;j ESN> IMEI (International Mobile Equipment Identify) vd;Wk; miof;fg;gLfpwJ.

ESN my;yJ IEMI %yk; fpilf;fg;ngWk; jfty;fs; fPNo nfhLf;fg;gl;Ls;sd. ,q;F x vd;gJ ,yf;fj;ijf; Fwpf;Fk;.

XXXXXX-----XX-------XXXXXX----X

TAC-------FAC------SNR-------SP

;

TAC-WL mDkjp FwpaPL (Type Approved Code)  


FAC -,Wjp xUq;fpizg;G FwpaPL (Final Assembly Code)

SNR: njhlu; vz; (Serial Number)

SP: ghfk; (Spare)

nry;Nghdpy; vt;thW miog;Gfs; Vw;fg;gLfpwJ?

cq;fsplk; xU nry;Nghd; ,Ug;gjhf itj;Jf; nfhs;Nthk;. mij ePq;fs; capUl;LfpwPu;fs; (
ON). mg;nghOJ xU miog;G cq;fs; nry;NghDf;F tUfpwJ. ,g;nghOJ cq;fs;nry;Nghdpy; vd;d elf;fpwJ vd;gijg; ghu;g;Nghkh?

cq;fs; nry;Nghd; capUl;lg;gl;lTld; fl;Lg;ghl;L rhdypy; cs;s
SID FwpaPl;il mwpfpwJ. fl;Lg;ghl;L rhdy; vd;gJ xU jdp mjpu;T vz; (FREQUENCY) MFk;. nry;Nghdpy; cs;s ,e;j jdp mjpu;T vz; NghDf;Fk; jiu epiyaj;jpw;Fk; ,izg;ig Vw;gLj;jp miog;G epWTjy; (Call Setup) kw;Wk; rhdy; khWjy;fis mwpfpwJ. cq;fs; nry;Nghd; ,e;j fl;Lg;ghl;L mjpu;ntz;fis mwpahky; Nghdhy; miytPr;Rf;F mg;ghw;gl;L (Out of Range) ,Uf;fpNwhk; vd;gij njupe;J nfhz;L ''Nritapy; ,y;iy"" (No Service) vd;w jftiy jpiuapy; fhl;LfpwJ.

SID FwpaPl;il Vw;wTld; Vw;fdNt nry;Nghdpy; eputikg;G nra;ag;gl;l SID FwpaPl;il xj;Jg;ghu;f;fpwJ. ,e;j ,uz;Lk; xj;Jg; Nghdhy; me;j jiuepiyak; nry;Nghdpy; njhlf;f epiy KiwAld; (Home System) njhlu;G Vw;gLj;jpAs;sJ vd;gij njupe;J nfhs;fpwJ.

SID-Ald; nry;NghDk; xU gjpT tpz;zg;gk; xd;iw miy gug;GfpwJ. ,g;nghOJ MTSO mYtyfk; cq;fs; nry;Nghd; cs;s ,lk; kw;Wk; juTj;jyk; (Database) Mfpatw;iw mwpe;J nfhs;fpwJ. ,jd;%ykhf ve;j nry;ypy; cq;fs; Nghd; ,Uf;fpwJ? vg;nghOJ kzpabf;f nra;a Ntz;Lk; vd;gJ MTSO-f;F njupfpwJ.

MTSO miog;G ngw;wTld; cq;fs; nry;Nghd; cs;s ,lj;ij mwpa Kaw;rpf;fpwJ. ,jw;Fs; ,jd; juTjsj;ijg; ghu;j;J ve;j nry;ypy; ,Uf;fpwJ vd;gij mwpe;J nfhs;fpwJ.

cq;fs; nry;Nghd; cs;s nry;ypy; miog;ig Vw;gLj;Jk; xU N[hb mjpu;ntz;iz Nju;e;njLf;fpwJ
MTSO.

MTSO cq;fs; NghDld; fl;Lg;ghl;L rhjdq;fs; %yk; njhlu;G nfhz;L ve;j mjpu; ntz;fis cgNahfpf;f Ntz;Lk; vd fl;lis gpwg;gpf;fpwJ. cq;fs; nry;NghDk;> NfhGuKk; xNu mjpu;ntz;zpy; KLf;fg;gLk; nghOJ njhlu;G Vw;gLj;jg;gL fpwJ. ,J xU ,Utop NubNahtpd; ,af;fj;ijg;Nghy; ,Uf;Fk;.

tiy tiugl Nfhzq;fs;
(
Net Diagram Bubbies)

ePq;fs; nry;ypd; vy;iyf;Fs; tpspk;gpy; nrd;why; rpf;dypd; typik Fiwtij me;j nry;ypy; cs;s jiuepiyak; czu;fpwJ. mNjrkak; jiuepiyaj;ij Nehf;fp mUfpy; nry;y nry;y rpf;dy; typik ngWtijAk; ePq;fs; fhz KbAk;.

,uz;L jiuepiyaq;fspd; vy;iyf;Fl;gl;l ,lq;fspy; ,Uf;Fk;nghOJ ,uz;L jiu epiyaq;fSk;
MTSO %yk; fl;Lg;ghl;L rhdy;fs; topahf cq;fs; nry;Nghd; xU rpf;dy; ngw;W mjpu;ntz;iz khw;WfpwJ.

Nuhkpq; (
Roaming):

fl;Lg;ghl;L rhdypy; cs;s
SID FwpaPL nry;Nghdpy; eputikg;G nra;ag;gl;l FwpaPl;Lld; xj;Jg;Nghftpy;iynad;why; cq;fs; nry;Nghd; Nuhkpq;fpy; cs;sJ vd;gij mwpe;J nfhs;fpwJ. cq;fs; nry;Nghid ePq;fs; Nuhkpq;fpw;F cl;gLj;Jk;NghJ me;j nry;ypy; cs;s MTSO mYtyfk; ePq;fs; ,izg;Gg; ngw;w njhlf;f epiyKiw cs;s (Home System) mYtyfj;jpy; njhlu;G nfhs;fpwJ. gpd; mjd; juTj;jsj;ij (Database) Nrhjid nra;J cq;fs; nry;Nghd; SID FwpaPL Nuhkpq; mDkjp ngw;wpUf;fpwJ vd;gij cWjp nra;J nfhs;fpwJ. cq;fsJ njhlf;f epiy Kiwia (Home System) cq;fsJ nry;Nghid me;j ,lj;jpw;Fl;gl;l MTSO mYtyfj;jpy; rupghu;j;Jf; nfhz;L cq;fs; Nghdpd; jlj;ij mwpe;J ePq;fs; xt;nthU nry;ypypUe;J mLj;j nry;ypw;F efUk;nghOJ gpd;gw;wp tUfpwJ. ,jpy; Mr;rupak; vd;dntd;why; Nkw;$wpa midj;J fhupaq;fSk; xU rpy nehbf;Fs; ele;J tpLtNj.

mLj;j thuk; nry;Nghd;fspy; gad;gLj;jg;gLk; mjp etPd njhopy; El;gkhd 'GSh^j;"> '3[p" njhopy; El;gk;> tau;y]; mg;spNf\d; GNuhl;lhfhy; Nghd;wit gw;wpa jfty;fs; ,lk;ngWfpwJ.

 

Original Link (Daily Thanthi) http://www.dailythanthi.com/Irmalar/home/second_page.asp?issuedate=5/29/2004&secid=76