KingTone Tetra DMR UHF 400MHz 450MHz Line Amplifer BDA e sebelisetsoang Indoor Distributions System (IBS), Kamore e ka tlaase, Tunnel Coverage
Indoor Distributions System (IBS), Basement, Tunnel Coverage Solution Mehato:
1. Tlhahlobo ea boenjiniere ba sebaka sa ho kenya: Na letšoao la setsi sa setsi ke 380-400MHz?
Na lets'oao la selefouno sebakeng sa monyako oa kotopo le ka amohela matšoao a 3-4 (matla a tšimo bonyane a lokela ho ba le -85dBm kapa ho feta)?Haeba ho se joalo, batla sebaka se haufi le kotopo se nang le lets'oao le letle e le sebaka sa ho amohela letšoao;
Tlhokomeliso: Sebaka sa ho amohela e tlameha ho ba boemo ba antenna e amohelang, empa ha se boemo ba motho ea pheta-phetang.Sebaka se tsoang ho antenna e amohelang ho ea pheta-pheta ha se na moeli (e ka ba haufi kapa hole), 'me moreki o itokisa ho latela morero;
2, ho kenya antenna
Motho ea pheta-pheta o tla ba le likou tse peli, boema-kepe ba BS bo hokahane le antenna e amohelang (ho ea seteisheneng sa setsi), 'me sekepe sa MS se hokahane ho koahela antenna (ho ea sebakeng sa tšireletso);
Leha ho le joalo, e le ho qoba ho ithabisa ha motho ea pheta-phetang, motho ea pheta-pheta a ke ke a sebetsa (ho ithabisa ka matla ho tla etsa hore mochine oa amplifier oa ho pheta-pheta o time), kahoo ela hloko lintlha tse peli tse latelang:
a, lenakana le amohelang le lenakana le koahelang li tlameha ho khutlela ka morao;
b, sebaka se pakeng tsa antenna e amohelang le antenna e koahelang bonyane e feta limithara tse 50, 'me sebaka se itseng se lokisoa ho latela maemo a sebele a sebaka;
c.Haeba ts'ebetso ea ho kenya, sebaka se pakeng tsa li-antenna tse peli se fihlile ho limithara tse 80 kapa ho feta, ho ke ke ha khoneha ho qoba ho ithabisa.Ho kgothaletswa hore bareki ba kenye letlooa la ho itšehla thajana pakeng tsa li-antenna tse peli (tse kang karolo e kholo ea tšepe) kapa ba sebelise maemo a sebaka ho Antenna e arohane (e kang thaba kapa mohaho o moholo);
3, ho latela sebaka sa tšireletso: bolelele ba kotopo ea limithara tse 500 ho beha mochini o hole
4, feeder & connector: 1/2 ″ coaxial cable, bolelele: bareki ba iketsetse ho latela litlhoko tsa projeke!
5, haeba ho e-na le sekhutlo ka har'a kotopo, ho kgothaletswa hore o kenye letsoho le nang le matla a mabeli ho motho ea pheta-phetang, o hule sejo, 'me u kenye antenna ea sekoahelo ho koahela;
