- Mawu Oyamba
- Nkhani yayikulu
- Ntchito & zochitika
- Kufotokozera
- Magawo/Chitsimikizo
-
Mafotokozedwe Akatundu
TETRA chingwe chofikira MDAS Fiber Optic Repeater imagwiritsidwa ntchito kukulitsa chizindikiro cha zida za TETRA.Master Optical Unit System imagwira chizindikiro cha BTS cha TETRA ndikuchisintha kukhala chizindikiro cha optic ndikutumiza chizindikirocho ku Remote Optical Unit kudzera pazingwe za fiber optic.Remote Optical Unit idzasinthanso chizindikiro cha optic kukhala chizindikiro cha TETRA ndiyeno itembenuzire Downlink Amplifier ndikupereka chizindikiro kumadera omwe kusagwira ntchito kwaukonde sikukwanira.
Ndipo siginecha yam'manja imakulitsidwanso ndikutumizidwanso ku BTS kudzera mbali ina.Dongosolo logawa ndi kampani yathu yodziyimira pawokha kafukufuku ndi chitukuko limapangidwa ndi Master Optical Unit ndi Remote Optical Unit.Gawo lamkati limaphatikizidwa, ukadaulo wophatikizika kwambiri ndikuwongolera kukhazikika kwa zida.
Zogulitsa Zamalonda
Mulingo wapamwamba, kupezeka kwakukulu, koyenera kukonza;
Internal kutengera kuwunika kwanzeru, ndikosavuta kupeza zolakwikazo kuti zisungidwe;
Kugwiritsa ntchito mphamvu zochepa, kutentha kwabwino kwambiri;
Mzere wapamwamba PA, kupindula kwakukulu kwadongosolo;
Kuyang'anira kwanuko ndi kutali;
Kukula kocheperako, kusinthika pakukhazikitsa ndi kusamutsa;
Zogwirizana ndi ETSI
- Nkhani yayikulu
-
400 uhf mafoni ulalo ulalo wobwereza Mbali:
1.Monitoring mapulogalamu akhoza kukwezedwa kwanuko kapena kutali.
2.Wide yosinthika, kugwiritsa ntchito mphamvu zochepa komanso phokoso la phokoso.Kutetezedwa kumagetsi opitilira muyeso, kupitilira apo komanso kutentha kwambiri
3.Kudzipatula kwapamwamba kuchokera ku uplink kupita ku downlink kuti mukhale okhazikika kwambiri.
4.Kudalirika kwakukulu ndi MTBF≥100,000 maola
5.Perfect kutali ndi ntchito zowunikira maukonde.
6.Pewani kusokonezedwa ndi ma co-frequency
7.Kulitsani malo ophimba ndi mlongoti wa omni directional
8 Wonjezerani mtunda wa ma sign of base station
9.Batire zosunga zobwezeretsera
10.Main module kudziyesa nokha ndi alamu galimoto.
11.Door open alarm
12ALC (auto level control), etc.
- Ntchito & zochitika
-
Mapulogalamu a TETRA 400 REPEATER
Kukulitsa kufalikira kwa ma siginecha amtundu wakhungu wodzaza pomwe chizindikiro ndi chofooka
kapena osapezeka.
Panja: Mabwalo a ndege, Madera Oyendera alendo, Maphunziro a Gofu, Tunnel, Mafakitole, Maboma a Migodi, Midzi ndi zina.
M'nyumba: Mahotela, Malo Owonetserako, Zipinda Zapansi, Zogula
Malo ogulitsira, Maofesi, Malo Olongedza, etc.
Zimagwiritsidwa ntchito makamaka pazochitika zotere:
Wobwereza amatha kupeza malo osungira omwe angalandire chizindikiro choyera cha BTS pamlingo wokwanira monga Rx Level mu malo obwereza ayenera kukhala oposa -70dBm;Ndipo amatha kukwaniritsa kufunikira kwa kudzipatula kwa mlongoti kuti apewe kudzidzidzimutsa.
- Kufotokozera
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Kufotokozera kwa MOU RF
Zinthu
Tsitsani
Uplink
Memo
Kugwira Ntchito pafupipafupi
350MHz gulu
350-357MHz
360-367MHz
Muyenera kufotokoza bandi pamene kuyitanitsa
420MHz gulu
410-417MHz
420-427MHz
500MHz gulu
500-507MHz
510-517MHz
RF Input mulingo wa doko lililonse lolowera la RF
-5dBm~0dBm
/
Mulingo wovomerezeka: 0dBm
Kuyika kwa Max RF popanda kuwonongeka
10dBm
/
Chenjezo: mphamvu yolowera imatha kuwononga kotheratu
RF Output Level
/
-5±2dBm
Kutulutsa koyipa komanso phokoso la Wideband
Zosavomerezeka:
9kHz-1GHz/BW:30KHz
≤-36dBm
≤-36dBm
1GHz-4GHz /BW:1MHz
≤-30dBm
≤-30dBm
Wideband phokoso
100 kHz - 250 kHz
-75dBc
-78dBc
ZINDIKIRANI: frb imatanthauza kusinthasintha pafupipafupi komwe kumayenderana ndi m'mphepete mwa bandi yolandirira kapena 5 MHz chilichonse chomwe chili chachikulu.
250 kHz - 500 kHz
-80dBc
-83dBc
500 kHz - kuchokera
-80dBc
-85dBc
>frb
-100dBc
-100dBc
Kutulutsa mpweya
30 MHz mpaka 1 GHz
≤-36dBm
1 GHz mpaka 4 GHz
≤-30dBm
Intermodulation
kuchepetsa (dBc)
RBW30 kHz
≤-36dBm
Chizindikiro chosokoneza chiyenera kukhala
osasinthika komanso amakhala ndi ma frequency ochepera osachepera 500 kHz kuchokera pama frequency onyamula.Mphamvu mlingo wa
chizindikiro chosokoneza chidzakhala 50 dB pansi pa mlingo wa mphamvu ya siginecha yotuluka kuchokera ku transmitter poyesedwa.
Kupeza kwa gulu
50 kHz Frequency offset kuchokera pa - 6 dB point
75db ndi
75 kHz requency offset kuchokera -6 dB point
70db ndi
125 kHz requency offset kuchokera pa - 6 dB point
65db ndi
250 kHz requency offset kuchokera pa - 6 dB point
32db ndi
- Magawo/Chitsimikizo
- 1 chaka chitsimikizo kwa repeater, 6month kwa Chalk
■ Lumikizanani ndi ogulitsa ■ Kuthetsa & Kugwiritsa Ntchito
-
*Model : (TLISI198518/TLISI268518)
*Gulu lazinthu : TD-LTE Pico ICS Repeater -
*Chitsanzo: KT-100-03
* Gulu lazinthu : 100W RF Coaxial Attenuator -
*Chitsanzo: KT-PRP-B60-P37-B
* Gulu lazinthu : 5W 37dBm PCS 2g 3g maukonde umts 1900 foni yam'manja yobwerezabwereza -
*Chitsanzo: KT-DRP-B75-P37-B
*Gulu lazinthu : 5W DCS1800MHz Band Selective Repeaters
-