KingTone Tetra DMR UHF 400MHz 450MHz Line Amplifer BDA yogwiritsidwa ntchito pa Indoor Distributions System (IBS),Basement, Tunnel Coverage
Indoor Distributions System (IBS), Basement, Tunnel Coverage Solution Njira:
1. Kafukufuku wa uinjiniya wa malo oyika: Kodi siteshoni yoyambira ndi 380-400MHz?
Kodi chizindikiro cha foni yam'manja pamalo olowera ngalande chingalandire ma siginolo 3-4 (mphamvu yakumunda iyenera kukhala -85dBm kapena kuposa)?Ngati sichoncho, yang'anani malo pafupi ndi ngalandeyo ndi chizindikiro chabwino ngati malo olandirira chizindikiro;
Zindikirani: Malo olandirira ayenera kukhala malo a mlongoti wolandira, koma simalo a wobwereza.Mtunda wochokera ku mlongoti wolandira kwa wobwereza suli wochepa (ukhoza kukhala pafupi kapena kutali), ndipo kasitomala amadzisintha yekha malinga ndi polojekitiyo;
2, kukhazikitsa mlongoti
Wobwereza adzakhala ndi madoko awiri, doko la BS limalumikizidwa ndi mlongoti wolandila (kumalo oyambira), ndipo doko la MS limalumikizidwa kuphimba mlongoti (kumalo ofikira);
Komabe, kuti mupewe kudzikonda kwa wobwerezabwereza, wobwereza sangathe kugwira ntchito (kudzidzimutsa kwambiri kumapangitsa kuti module yamagetsi yobwereza mphamvu itenthe), choncho tcherani khutu ku mfundo ziwiri zotsatirazi:
a, mlongoti wolandira ndi mlongoti wophimba ayenera kubwerera kumbuyo;
b, mtunda wapakati pa mlongoti wolandira ndi mlongoti wophimba ndi osachepera mamita 50, ndipo mtunda wake umasinthidwa malinga ndi momwe zilili pa malo;
c.Ngati njira yoyikapo, mtunda wa pakati pa tinyanga ziwiri wafika mamita 80 kapena kuposerapo, ndizosatheka kupeŵa kudzikonda.Ndibwino kuti makasitomala awonjezere ukonde wodzipatula pakati pa tinyanga ziwiri (monga chitsulo chachikulu) kapena agwiritse ntchito zikhalidwe za malo kuti Mlongoti usungunuke (monga phiri kapena nyumba yaikulu);
3, molingana ndi malo ofikira: mita 500 kutalika kwa ngalande kuti aike makina akutali
4, wodyetsa & cholumikizira: 1/2 ″ chingwe coaxial, kutalika: makasitomala amasintha malinga ndi zosowa za polojekiti!
5, ngati pali ngodya mumphangayo, tikulimbikitsidwa kuti muwonjezere chogawa champhamvu ziwiri kwa wobwereza, kukoka chodyetsa, ndikuwonjezera chivundikiro cha antenna kuphimba;
