I-KingTone Tetra DMR UHF 400MHz 450MHz 450MHz Line Amplifer BDA isetshenziselwe Uhlelo Lokusabalalisa Ngasendlini (IBS),Isitezi esingaphansi,I-Tunnel Coverage
Isistimu Yokusabalalisa Kwangaphakathi (IBS),Isitezi Esingaphansi, Izinyathelo Zokukhava Umhubhe:
1. Inhlolovo yobunjiniyela besayithi yokufaka: Ingabe isignali yesiteshi esiyisisekelo ingu-380-400MHz?
Ingabe isignali yeselula endaweni yokungena emhubheni ingathola amasignali angu-3-4 (amandla enkundla kufanele okungenani abe -85dBm noma okungcono)?Uma kungenjalo, bheka indawo eduze komhubhe enesignali enhle njengendawo yokwamukela isignali;
Qaphela: Indawo yokwamukela kufanele kube indawo yothi olwamukelayo, kodwa akusona isimo somphindayo.Ibanga ukusuka ku-antenna eyamukelayo ukuya kophindaphindayo alikhawulelwe (lingaba eduze noma kude), futhi ikhasimende lizilungisa ngokwalo ngokwephrojekthi;
2, ukufakwa kwezinti
I-repeater izoba namachweba amabili, imbobo ye-BS ixhunywe ku-antenna eyamukelayo (ibheke esiteshini sesisekelo), futhi imbobo ye-MS ixhunywe ukumboza i-antenna (ibheke endaweni yokumboza);
Kodwa-ke, ukuze ugweme ukuzithokozisa komuntu ophindayo, ophindayo akakwazi ukusebenza (ukuzithokozisa okunamandla kuzobangela ukuthi imodyuli ye-amplifier yamandla ephindaphindayo iphele), ngakho-ke qaphela amaphuzu amabili alandelayo:
a, uthi olwamukelayo kanye nothi olumbozayo kumele kubuyele ngemuva;
b, ibanga eliphakathi kwe-antenna eyamukelayo kanye nothi olumbozayo okungenani lingaphezu kwamamitha angama-50, futhi ibanga elithile liyalungiswa ngokuya ngesimo sangempela esikusayithi;
c.Uma inqubo yokufaka, ibanga phakathi kwezinti ezimbili selifinyelele kumamitha angu-80 noma ngaphezulu, akunakwenzeka ukugwema ukuzithokozisa.Kunconywa ukuthi amakhasimende engeze inethi yokuhlukanisa phakathi kwezimpondo ezimbili (njengensimbi enkulu) noma asebenzise izimo zesayithi ukuze I-antenna ihlukaniswe yodwa (njengentaba noma isakhiwo esikhulu);
3, ngokwendawo yokumboza: ubude bomhubhe wamamitha angama-500 ukubeka umshini oqhelile
4, okuphakelayo nesixhumi: 1/2″ ikhebula le-coaxial, ubude: amakhasimende enza ngokwezifiso ngokuya ngezidingo zephrojekthi!
5, uma kukhona ekhoneni emhubheni, kunconywa ukuthi wengeze isihlukanisi samandla amabili kumuntu ophindayo, udonse okokuphakelayo, bese wengeza i-antenna yokumboza;
