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ڵλãֻ
5ʱСͨȫ
2004-03-01 15:45йشߣ
Сͨ½ȥ5µ飬ʱùˡȫͨı߶DzΪȻΪʱСͨվ軹ܲƣСͨ縲ǷΧСںܶط޷ʹСͨܶ߶СͨҲdzֹ̬ȣСͨҲδԤڵĻ;⣬GSMCDMAķչ죬»ͲṩķҲǻ࣬ǵĿ󲿷ֱGSMCDMAֻˣ˶СͨĹעȻҲҪٵöࡣǣСͨûΪǵչĽŲСͨĽһֱڽܹĵؽС

ĿǰСͨվѾﵽ16000ѾͨĻվѾﵽ14000500ƽĻѾûźä廷Լ廷󲿷ֵҲѾСͨ硣ܶԴ˽˳ԣݳڳйش·廷ȻغӱһֱߵԲ԰·ҵһڽ뱱廷ڻȻӶ廷Ķӳڳ廷·һֱߵӱߣСͨźһֱãֻڶ廷м˶ݵźжϵ縲ǵСڳٴﵽ80ʱͨ½ٳ100ͨʱжϵϱߵׯźָʾϣͨҲܺáضгͨжжϵڹŵļУźһֱΪ(ߵĶеشֻڼеĵطûźŵ)ͨdzá롰ͨһ塱ʱѾ죬ǾʹŴҺСͨһΡܽӴ

ΪʲôѡСͨСͨŵ

1.ͷ

СͨġѧPAS(Personal Accessphone System)һ͵л磬ߵķʽл磬лйܣ־߱ƶԡСͨŵɫķ书ʽΪ10ߣGSMֻİٷ֮һ绰ķ书(30)С弸ûκ˺ȫһ֡ɫͨѶߡ

2.ʷѵ

GSMCDMAֻСͨʷƷdzԡĿǰСͨʹ÷ʽ25Ԫѣͨ(ǰ0.22ԪԺÿ0.11Ԫ)65Ԫ(65Ԫл)70Ԫ(70Ԫл)绰ѡʹСͨIP绰Ҳdzˣ25ԪѵСͨ17908IP;СͨлƷѣIPÿӿ۳0.3Ԫ17908Ŀܴ3ۣÿܵͨΪ0.2ԪҡСͨҲܱˣֻ߽ӿڣáСèӵԽвʷѺлһɱGPRSCDMA˶ˡ

⣬ڹСͨʱкܶŻݣлͶͻѣ߹UT218һ25Ԫѵĺ(벻ͬ۸ͬ)750󣬺450ԪѡĿǰСͨгǺܹ淶̴ͬļ۸нϴ룬ѡСͨʱȽϼ̼ҡ

3.ʱ䳬

ڷ书ССͨĴʱ䶼ܳһһζʹһϣߵUT218һοʹ3죬3ܵͨʱ5Сʱ

Сͨŵ㶼ĿǰGSMCDMAֻ޷ģڻѳͣǿԷĴ󵨵ҵ绰࣬Ҳûʹֻ绰ʱԳ͡սľĸоҼʹֻĻܹСͨҲʱͨҪÿGSMֻһСʱ²þͻ⣬СͨȫõģΪķ绰͡

縲Ǻͨ⡣ĿǰСͨվڽУСͨ绹ûȫڻһЩźä㣬ʹСͨʱźäйͨĿͷķӳͨûķӳһСͨ硣

ڶСͨźҪһŻлվʱżźŶжϵڸʻͨ½߸ɴͨжϡЩйͨҪעĵط

ĿǰСֻͨijҼǹҵֻ۱ȽϵһҲȽϼ򵥣ܹͨ͹Ĵֻ̺ƳһЩ۾䡢ǿСֻͨƳķ࣬Žи߼ͨһ塣һСҲһ£йƶûйƶĿͷ˹ͨٶȱȽϿ죬ҹ䡢ڼҲѸٽͨԱķ̬ҲܺãǶô򵥵⣬ҲĽ𣬶ǻdzòһֺĸоͨ˹񾭳ҪȰܽͨҹͽڼȵøãеĻԱͻᡰǡʱԵе㲻ͷϣܹͨԸĽϣǣСͨƵͬʱֻʷܹһʵֵշѣʱ߾ܸȡ裬ѡʺԼͨŷʽ

Сͨͽ

GSMֻСֻͨƷƺͺŶҪٵö࣬ΪҽܼȽɫĻ͡

1. UT218

UT218ȥĻͣۡܡźһһСֻͨźźŵ㣬Сͨվ軹ûȫʱѡΪȥһЩաIJ˵֯ʽŵֻЩƣdz㣬빦ҲǿɫƣɫǣɫĴܺгɴ洢200绰210(100ռ100ݸ10)4dz󣬲©ӵ绰ûʾ580ʱӵؿṩ48-200СʱĴʱ(ʵʹÿͨСʱһңСֻͨҲˮƽ)һȱǰɵֻҪôرգҪôʱԵôһ㣬ⲻֵ֧绰ĸûжףЩԭµСȱ㣬;һֵͣôƼ

Ƽָ

2. UT718

Сֻͨеġ֮óߴ65536ɫTFTʾ32ɫָʾƣ֧WiWiMiMi񣬿Сè͵ʵ64KҲֱֻҳշʼ⻹ͷƬγߴ4894.522.5ףԼΪ90ˡֻʺϾѣΪٶҪGPRSһЩʷȴӱˣЩֻҪܻͨѾһGSMֻѣֻʺϣUT218ʵʵڵĻͲѡڱ߿СͨΪGSMֻһ䣬ʹá˫ǹĸоĺܺŶ

Ƽָ

3.PT1689+

ʹΪιɣҲȽܻӭźűUT218Ҫһ㡣Ļɫģһָ߲ʾƣ16ɴ洢50š200绰룬СUT218࣬ҪԲһЩֻȽʺϿɰŮʹá

Ƽָ

4.ѶPS500

СֻͨԻһͷмСЩֵܷ˵ĿζȻڣһ廨ͷϲһͷŵǵ绰Դ洢200ÿ¿ɴ洢2룬ĹܺͱĻͲ޶ʺϲ׷Եʹá

Сͨļ۸񸡶ϴ󣬶Ҳͬʷѷļ۸ҲͬǾͲΪҽ⼸͵ļ۸ˣҪѿѯСͨվIJƺ»͵IJƳСͨȻܵԽԽߵĻӭڴСͨƺ͸СֻͨУʱ޷˵ü롰ͨһ塱

Ƽָ

ĵַ:http://www.cnonline.org/2004/article/3714.html

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