Kingtone Customized frequencyVHFIjelo ElikhethiweyoI-Bi Directional Amplifier (BDA)zizicombululo ezingabizi kakhulu nezithembekileyo ezenzelwe ukwandisa nokuphucula indawo yokugubungelaVHFiinkqubo zonxibelelwano lwe-intercom.Ii-BDA eziKhethekileyo zeChannel zivumela umsebenzisi ukuba akhulise kuphela abathwali abanqwenelekayo kumacala omabini, ikhonkco kunye ne-downlink.Ukukhetha isitishi kucwangciswa kwalapha ekhaya nge-RS 232 okanye ukude ngeModem okanye iRJ45.
AMANQAKU
Qaphela 1: Amandla emveliso yenkqubo ngumsebenzi inani abathwali isiganeko kwinkqubo, inqanaba umqondiso ezi carrier s ukuya
inkqubo yokwandisa umqondiso, inzuzo yee-PA's, kunye nelahleko yokufakwa kwezihluzo ngaphakathi kwenkqubo yokwalatha kabini.
Qaphela i-2: Umfanekiso weNgxolo yeNkqubo sisixa se-NF ye-amplifier kunye nelahleko zokucoca ngaphambi kwe-amplifier.Isihluzi silahlekelwa kukuxhomekeka kwakhona
ububanzi be-passband ye-uplink frequencies, ububanzi be-passband ye-downlink frequencies, kunye nebhendi yokumisa phakathi kwabo.
Ubukho be-VHF ePhindayo i-BDA ibonelela kwinkqubo yonxibelelwano lwe-intercom ngezinga eliphezulu lokuhlala kwejelo, ekubeni ukhuselo lwandisiwe ngaphaya kokhuselo lwesiza.Usetyenziso oluqhelekileyo lwalo mgca weebhuthi ziimeko zangaphakathi ezinje ngeetonela, izakhiwo, iindlela ezingaphantsi komhlaba, kunye neemeko zangaphandle ezifana nebala lemidlalo, imimandla yasemaphandleni kunye neendawo ezixineneyo zasezidolophini.Kuba yinkqubo emibini yezixhobo, ngoko unokonga iindleko zokuphinda kabini i-feeder.
Iinkcukacha
| Ikhonkco | Ikhonkco lokuthoba | ||
| Ukusebenza rhoqo | ITetra380 | 380 ~ 385 MHz | 390 ~ 395 MHz |
| Tetra400 | 400 ~ 405 MHz | 410 ~ 415 MHz | |
| Tetra420 | 415 ~ 420 MHz | 425 ~ 430 MHz | |
| I-CDMA450 C | 450 ~ 455 MHz | 460 ~ 465 MHz | |
| CDMA450 A | 452,5 ~ 457,5 MHz | 462,5 ~ 467,5 MHz | |
| Tetra480 | 480 ~ 485 MHz | 490 ~ 495 MHz | |
| VHF | 136 ~ 174 MHz | 136 ~ 174 MHz | |
| IDEN | 806 ~ 821 MHz | 851 ~ 866 MHz | |
| Abanye | njengoko yenziwe ngokwezifiso | ||
| Amandla emveliso | 27/30/33/37/40dBm | 33/37/40/43/46dBm | |
| Inzuzo | 80dB | 80-95dB | |
| Ukuthoba ikhonkco ukuya kuLwahlulo lwe-Uplink | 3Mhz min | ||
| MGC | ≥ 31dB / 1dB inyathelo | ||
| VSWR | ≤1.5:1 | ||
| Kwibhendi flat | ≤3dB | ||
| Ii-odolo ezintathu ze-intermodulation | ≤-45dBc | ||
| Fumana ukuchaneka kohlengahlengiso | 0-10dB≤1dB | ||
| 10-20dB≤1dB | |||
| 20-30dB≤1.5dB | |||
| Ulibaziseko lweNkqubo | ≤5dB | ||
| Ibhendi yokwala | Fo±0.4MHz | ≤-25dBm | |
| Fo±0.6MHz | ≤-35dBm | ||
| Fo±1MHz | ≤-48dBm | ||
| Ukukhutshwa kweSpurious | 9KHz~150KHz≤-36dBm/10KHz | ||
| 150KHz~30MHz≤-36dBm/100KHz | |||
| 30MHz~1GHz≤-36dBm/100KHz | |||
| 1GHz-12.75GHz≤-30dBm/1MKHz | |||
| Umfanekiso wengxolo | ≤5dB | ||
| I/O Imedance | 50Ω | ||
| RF isidibanisi | N-Udidi (Owasetyhini) | ||
