SR812ST Kaiwhiwhi Whatu Ā-rua o Waho, Putanga-rua
Tauira Tau: SR812ST
Waitohu: Softel
MOQ: 1
Mahi AGC Tino Pai
Mana Pūtukatuka Mamati, Whakaaturanga Mamati
Ka Arotau te Tukanga SMT i te Tukunga Tohu Whakaahua-Hiko
01
Whakaahuatanga Hua
Tirohanga Poto
Ko SR812ST(R) tā mātou kaiwhiwhi whatu whatunga CATV putanga-rua kounga teitei hou. Ka whakamahia e te whakakaha-mua te MMIC GaAs-katoa, ka whakamahia e te whakakaha-muri te kōwae GaAs. Nā te hoahoa ara iahiko kua arotauhia me ō mātou tau 10 o te wheako hoahoa ngaio, ka taea e ngā taputapu te whakatutuki i ngā taupū mahi pai. He tino ngāwari te whakahaere tukatuka iti, te whakaaturanga mamati o ngā tawhā, me te patuiro hangarau. Koinei te taputapu matua hei hanga i te whatunga CATV.
Ngā Āhuatanga Mahi
- Ngongo tahuritanga hiko PIN urupare teitei.
- Mā te hoahoa ara iahiko kua arotauhia, te whakaputa tukanga SMT, me te ara tohu kua arotauhia ka maeneene ake te tuku tohu hiko-whakaahua.
- Maramara whakaitiiti RF motuhake, he pai te whakaitiiti RF me te taurite raina, he tino tika.
- Pūrere whakakaha GaAs, putanga takirua te mana, he nui te whakanui me te iti o te hē.
- Kei te mahi ngā taputapu whakahaere rorohiko iti maramara kotahi (SCM), e whakaatu ana te LCD i ngā tawhā, te ngāwari me te ngāwari o te whakahaere, me te mahi pumau.
- He tino pai te mahi AGC, ina ko te awhe mana whatu tāuru he －9～＋2dBm, ka noho tonu te taumata putanga, ā, ko te CTB me te CSO kāore i te tino rerekē.
- Atanga whakawhitiwhiti raraunga kua rāhuitia, ka taea te hono atu ki te kaiwhakautu whakahaere whatunga akomanga 2, me te urunga atu ki te pūnaha whakahaere whatunga.
- Ka taea e te tukunga whakahoki te tīpako i te aratau pakū hei whakaiti tere i te huihuinga haruru me te whakaiti i te maha o ngā kaiwhiwhi o mua.
Ngā Tikanga Whakamātautau Hononga
Ko ngā tawhā hangarau o tēnei pukapuka ā-ringa e ai ki te tikanga ine o GY/T 194-2003
1. Wāhanga whiwhi whatu whakamua: me te muka whatu paerewa 10km, te whakaiti whatu kore mahi, me te tuku whatu paerewa i titoa te hononga whakamātautau. Whakatakotoria te tohu hongere pouaka whakaata anarau 59 PAL-D i te whānuitanga o te 45/87MHz ~ 550MHz i raro i te ngaronga hononga kua tohua. Tukuna te tohu whakarerekētanga mamati i te whānuitanga o te 550MHz ~ 862/1003MHz, ko te taumata tohu whakarerekētanga mamati (i roto i te whānui 8 MHz) he 10dB iti iho i te taumata kawe tohu anarau. Ina ko te mana whatu whakauru o te kaiwhiwhi whatu he -2dBm, ko te taumata putanga RF he 108dBμV, me te honga putanga 9dB, inehia te C/CTB, C/CSO, me te C/N.
2. Wāhanga tuku whatu whakamuri: Ko te papatahi o te hononga me te awhe hihiri NPR ngā taupū hononga e titoa ana i te tuku whatu whakamuri me te kaiwhiwhi whatu whakamuri.
Kia mōhio: Ina rite te taumata putanga kua whakatauria ki te whirihoranga katoa o te pūnaha, ā, ko te mana whatu whiwhi he -2dBm, ka tutuki i te taputapu te taumata putanga mōrahi o te taupū hononga. Ina whakaitihia te whirihoranga pūnaha (arā, ka whakaitihia ngā hongere tuku tuturu), ka piki ake te taumata putanga o ngā taputapu.
Pānui Hoa: Me whakatakoto e koe te tohu RF ki te putanga honga 6~9dB i roto i te tono hangarau mahi hei whakapai ake i te taupū kore-raina (i raro i te pona) o te pūnaha taura.
Kāore anō kia tino mōhio?
He aha ai?tirohia tā mātou whārangi whakapā, he pai ki a mātou te kōrero ki a koe!
| SR812ST Kaiwhiwhi Whatu Ā-rua o Waho, Putanga-rua | |||||
| Taonga | Wāhanga | Ngā Tawhā Hangarau | |||
| Wāhanga whiwhi whatu whakamua | |||||
| Ngā Tawhā Whatu | |||||
| Te Whiwhi Mana Whatu | dBm | -9 ~ +2 | |||
| Ngaronga Whakahoki Whatu | dB | >45 | |||
| Roangaru Whiwhi Whatu | nm | 1100 ~ 1600 | |||
| Momo Hononga Whatu |
| FC/APC, SC/APC, kua tohua rānei e te kaiwhakamahi | |||
| Momo muka |
| Aratau Takitahi | |||
| HonongaMahi | |||||
| C/N | dB | ≥ 51（-2dBm tāuru） | |||
| C/CTB | dB | ≥ 65 | Taumata Putanga 108 dBμV 6dB taurite | ||
| C/CSO | dB | ≥ 60 | |||
| Ngā Tawhā RF | |||||
| Awhe Auautanga | MHz | 45 ~862 | 45 ~1003 | ||
| Papatahi i roto i te Rōpū | dB | ±0.75 | ±0.75 | ||
| Taumata Putanga Whakatauria | dBμV | ≥ 108 | ≥ 108 | ||
| Taumata Putanga Mōrahi | dBμV | ≥ 114 | ≥ 112 | ||
| Ngaronga Whakahoki Putanga | dB | （45 ~550MHz）≥16/(550~1000MHz)≥14 | |||
| Āraitanga Putanga | Ω | 75 | 75 | ||
| Awhe EQ Mana Hiko | dB | 0~10 | 0~10 | ||
| Awhe ATT Mana Hiko | dBμV | 0~20 | 0~20 | ||
| Whakahoki WhatuEmisioniPtoi | |||||
| Ngā Tawhā Whatu | |||||
| Roangaru Tuku Whatu | nm | 1310±10, 1550±10, i tohua rānei e te kaiwhakamahi | |||
| Mana Whatu Putanga | mW | 0.5, 1, 2 | |||
| Momo Hononga Whatu |
| FC/APC, SC/APC, kua tohua rānei e te kaiwhakamahi | |||
| Ngā Tawhā RF | |||||
| Awhe Auautanga | MHz | 5 ~ 65（kua tohua rānei e te kaiwhakamahi） | |||
| Papatahi i roto i te Rōpū | dB | ±1 | |||
| Taumata Whakauru | dBμV | 72 ~ 85 | |||
| Āraitanga Putanga | Ω | 75 | |||
| Awhe hihiri NPR | dB | ≥15（NPR≥30 dB） Whakamahia te taiaho DFB | ≥10（NPR≥30 dB） Whakamahia te rēseri FP | ||
| Te Mahi Whānui | |||||
| Ngaohiko Tuku | V | A:AC（150~265）V;B:AC（35~90）V | |||
| Te pāmahana whakahaere | ℃ | -40~60 | |||
| Te pāmahana rokiroki | ℃ | -40~65 | |||
| Te haumākū ā-whanaunga | % | Mōrahi 95% kāore he haukū | |||
| Te Whakamahinga | VA | ≤ 30 | |||
| Ahu | mm | 260（R）╳ 200（W）╳ 130（T） | |||
Whārangi Whakatakotoranga mō te Kaiwhiwhi Muka Whatu Putanga-rua o Waho SR812ST.pdf
