GWT3500 1550nm CATV transmitter
Hōʻike huahana
ʻO GWT3500 kahi hoʻololi pololei 1550nm DFB transmitter no ka TV analog, TV digital a me nā hōʻailona CMTS i ka hāʻawi ʻana i ka fiber dense kūloko a me ka QAM TV Signal ka hoʻouna ʻana i ka fiber lōʻihi. Hoʻohana ka transmitter i ka laser DFB linearity kiʻekiʻe, RF power digital automatic process technique, me RF pre-distortion circuit i hoʻomohala ʻia e Greatway Technology. ʻO ka microprocessor i kūkulu ʻia e nānā i ke kūlana hana o ka transmitter a hōʻoia i ka hana optimistic. He kūpono ʻo GWT3500 no ka hāʻawi ʻana i ka fiber TV analog i loko o 20Km a me QAM TV hōʻailona lōʻihi ka lawe ʻana i loko o 100Km.
Ua hoʻokomo ʻia ʻo Fiber e hoʻouna i ka CATV RF ma 1990s ma muli o kona haʻahaʻa haʻahaʻa a kokoke i ka bandwidth palena ʻole. ʻO RF i ka fiber converter ka mea nui loa. Me ka leo haʻahaʻa haʻahaʻa a me ka microprocessor, hiki ke hoʻonohonoho pololei ʻia ka mana RF āpau ma ka laser, e hōʻoia i ka maikaʻi o ka optical modulation index (OMI). ʻO ka laser DFB i hoʻomaha ʻia i ka transmitter e hōʻoia i ka lōʻihi o ka nalu optical DWDM no ka hoʻolaha ʻana a i ʻole i hoʻokomo ʻia i nā lawelawe interactive narrowcasting. I kēia manawa ʻoi aku ka maikaʻi o ka laser DFB i hoʻoluʻu ʻia i ka laser RIN (pili ka leo ikaika) a me ka mana hoʻopuka laser paʻa. ʻO Ortel-Emcore linearity kiʻekiʻe DFB laser a me ka hoʻolālā Greatway ua hōʻoia ʻia he hui kūleʻa. Ua hoʻohana nui ʻia ka GWT3500 optical transmitter e nā mea kūʻai aku ma ʻAmelika ʻAmelika, ʻAmelika Hema a me Kina me ka hana maikaʻi loa a me ka hilinaʻi maikaʻi.
Me ka Greatway high power optical amplifier, hiki i ka transmitter GWT3500 ke hāʻawi i ka fiber TV kiʻekiʻe i ka hale a i ʻole ka fiber i ka home.
Nā hiʻohiʻona ʻē aʻe:
• Haʻahaʻa haʻahaʻa leo laina kiʻekiʻe Ortel-Emcore cooled DWDM DFB laser.
• GaAs a i ʻole GaN Technology a hiki i 1218MHz.
• Hoʻomaikaʻi ka ʻenehana pre-distortion maikaʻi i ka CTB, CSO a me C/N.
• Mālama pono ka microprocessor i ka mana a me ka mahana.
• Pono no ka CATV hoʻolaha RF a i ʻole Narrowcasting RF i ka fiber.
• Hōʻike ka VFD panel mua i nā palena kūlana a me ka memo hana.
• SNMP hooponopono pūnaewele koho.
• 1310nm hawewe lōʻihi koho.
