˫ģСͨȨ
2006-11-15 16:32йֻԭ
ĿǰϺһЩ/ˮֻгϣѾɼ˫ģСͨˡ۸ЩСͨĿǰڸλձڰĻΪ300-500Ԫ500-1000ԪMP3չܵҪ1000-2000Ԫ
ôʲô˫ģСͨأ
˫ģСͨҲPHS/GSM˫ֻڿСͨGSMźŵлûԱ˵Сͨ绰ܹСͨźŻεʱʹֻ
Ŀǰй½̨СͨҵƳ˫ģСͨڿGSMPHSл˫ģͬʱԺûӭ
ڵšͨûлƶգƶͨ棬˫ģСּͨԼĻȻdzйƶйͨŬ£ijЩ˳濪ʼ˫ģСͨЩ˵£Ϣҵɱ˫ģСͨ
ȻϢҵɱСͨȴƽϢ/ͨСͨӪҵƶ/ͨGSMƶӪҵͻȻijЩάҵ¢ѹƶʷѵ˫ģСͨھִУСͨӪǰд֧ҵҵġ
СͨӪ̵֧£ĿǰС̶ͨƳ˫ģСͨڸأԭļܻغ͵ͨűƶͨĸֹϵνɱӦһйƶйͨ
ı£ǡǷ˫ģСͨҲߵǰ̨һ泧졢һͨĸۣҲṩȫıޡ
һ¢漯ŵӰijЩžߣһڸòǿʵӰЩֺšȻ˲֡ɡܣĻϰˡ
Ϊʲô˵ɴܡϰأ
ԭPHSGSMͨģʽһ˫ģСͨȻѾ죬ֻʹãʹûӪ֮лʷѵ͵СͨȻʷѸߵGSMû
һͨҵȻϰյõʵݣǻƻҵı̬ijЩŵϲȻ䡰塱¢Ϊֹ
ôھͲôӵˡʵôϲгĸ²ڶijż漯桢滻ȡԼҲǷdzġ
ǣһЩԭIJһЩάϵԼġ۹ijЩĸȶĽǶֲͻƶȵԼһЩ˸ļƻõһûбһصȻijżάԼ¢棬ھִϣҲܵǣơijЩά䲿ľһֽĵԭ
ôʲô˫ģСͨأ
˫ģСͨҲPHS/GSM˫ֻڿСͨGSMźŵлûԱ˵Сͨ绰ܹСͨźŻεʱʹֻ
Ŀǰй½̨СͨҵƳ˫ģСͨڿGSMPHSл˫ģͬʱԺûӭ
ڵšͨûлƶգƶͨ棬˫ģСּͨԼĻȻdzйƶйͨŬ£ijЩ˳濪ʼ˫ģСͨЩ˵£Ϣҵɱ˫ģСͨ
ȻϢҵɱСͨȴƽϢ/ͨСͨӪҵƶ/ͨGSMƶӪҵͻȻijЩάҵ¢ѹƶʷѵ˫ģСͨھִУСͨӪǰд֧ҵҵġ
СͨӪ̵֧£ĿǰС̶ͨƳ˫ģСͨڸأԭļܻغ͵ͨűƶͨĸֹϵνɱӦһйƶйͨ
ı£ǡǷ˫ģСͨҲߵǰ̨һ泧졢һͨĸۣҲṩȫıޡ
һ¢漯ŵӰijЩžߣһڸòǿʵӰЩֺšȻ˲֡ɡܣĻϰˡ
Ϊʲô˵ɴܡϰأ
ԭPHSGSMͨģʽһ˫ģСͨȻѾ죬ֻʹãʹûӪ֮лʷѵ͵СͨȻʷѸߵGSMû
һͨҵȻϰյõʵݣǻƻҵı̬ijЩŵϲȻ䡰塱¢Ϊֹ
ôھͲôӵˡʵôϲгĸ²ڶijż漯桢滻ȡԼҲǷdzġ
ǣһЩԭIJһЩάϵԼġ۹ijЩĸȶĽǶֲͻƶȵԼһЩ˸ļƻõһûбһصȻijżάԼ¢棬ھִϣҲܵǣơijЩά䲿ľһֽĵԭ
ͳνֻԼĿǰġ˫ģСͨ⡣ǰ¢յijЩҵ漯ά¢ϴѹʱšֻ൱ѾաƯסʹùȥϣ衰ֻά¢ʵʧܡƶͨڡСͨǹ죬ijųѹšͨСͨӪ̡
˼ʿָ˫ģСͨΪӭгӦ˶ġһЩΪô꣬СͨʼסƶӪ漯ŵǿѹǵԼСͨĵʷӦ˹еڵľ߲ŷеġѧ߾͡Сͨǡƶ绰ǡ̻족۵Ľ
ͬԭġ˫ģСͨȻ۵Ľֳڡ˫ģСͨPHSǡƶ绰ǡ̻족ʵϻҪ߲ƽŲ棨漯棩ĽǶȳ
Ŀǰ߲һһֱĬԿԤϵõľǣɫġ˫ģСͨڻڡȻ֤͡ڡ
Ŀǰij˾ij˾̨ij˾Ƴġ˫ģСͨûļֻҪPHSSIMͿʹá
ûʹȫԷģһȻĿǰڻɫش泧̺͵ţͨӪ̵ʵֺ֧֣⡣ǼܲʵϵĬǼּܲԼƶͨҲ֪ûʹõǷ˫ģСͨûصƶͨijͷ߱
ĵַ:http://www.cnonline.org/2006/article/9704.html