Igbohunsafẹfẹ adani KingtoneVHFYiyan ikanniAmpilifaya Itọnisọna Bi (BDA)jẹ iye owo to munadoko ati awọn solusan ti o gbẹkẹle ti a ṣe apẹrẹ lati fa ati ilọsiwaju agbegbe agbegbe tiVHFintercom ibaraẹnisọrọ awọn ọna šiše.Awọn BDA Yiyan ikanni ngbanilaaye olumulo lati pọ si awọn gbigbe ti o fẹ nikan ni awọn itọnisọna mejeeji, ọna asopọ oke ati ọna isalẹ.Aṣayan ikanni jẹ siseto ni agbegbe nipasẹ RS 232 tabi latọna jijin nipasẹ Modẹmu tabi RJ45.
AKIYESI
Akiyesi 1: Agbara iṣelọpọ eto jẹ iṣẹ ti nọmba awọn iṣẹlẹ ti ngbe lori eto, ipele ifihan agbara ti awọn ti ngbe wọnyi s si
eto imudara ifihan agbara, ere ti PA, ati pipadanu ifibọ ti awọn asẹ laarin eto bidirectional.
Akiyesi 2: Nọmba Ariwo System jẹ apao ampilifaya NF ati awọn adanu àlẹmọ ṣaaju si ampilifaya.Àlẹmọ adanu a re ti o gbẹkẹle lori
iwọn iwọle fun awọn igbohunsafẹfẹ uplink, iwọn iwọle fun awọn igbohunsafẹfẹ isalẹ, ati iye iduro laarin wọn.
Iwaju ti VHF Repeater BDA n pese si eto ibaraẹnisọrọ intercom pẹlu iwọn gbigbe ikanni giga, niwọn igba ti agbegbe ti gbooro kọja agbegbe agbegbe.Awọn ohun elo aṣoju ti laini ti bata bata jẹ awọn ipo inu ile gẹgẹbi awọn tunnels, awọn ile, awọn oju opopona, ati awọn oju iṣẹlẹ ita gbangba gẹgẹbi awọn papa ere, awọn agbegbe igberiko ati awọn agbegbe ilu ipon.Nitoripe o jẹ eto ohun elo meji, nitorinaa o le ṣafipamọ idiyele ti ilọpo meji atokan naa.
Awọn pato
| Uplink | Isalẹ isalẹ | ||
| Ṣiṣẹ Igbohunsafẹfẹ | Tetra380 | 380 ~ 385 MHz | 390 ~ 395 MHz |
| Tetra400 | 400 ~ 405 MHz | 410 ~ 415 MHz | |
| Tetra420 | 415 ~ 420 MHz | 425 ~ 430 MHz | |
| CDMA450C | 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 | |
| Awọn miiran | bi adani | ||
| Agbara Ijade | 27/30/33/37/40dBm | 33/37/40/43/46dBm | |
| jèrè | 80dB | 80-95dB | |
| Isalẹ si Uplink Iyapa | 3Mhz min | ||
| MGC | ≥ 31dB/1dB igbese | ||
| VSWR | ≤1.5:1 | ||
| Ni band flatness | ≤3dB | ||
| Meta intermodulation ibere | ≤-45dBc | ||
| Jèrè atunṣe deede | 0-10dB≤1dB | ||
| 10-20dB≤1dB | |||
| 20-30dB≤1.5dB | |||
| Idaduro eto | ≤5dB | ||
| ijusile band | Fo± 0.4MHz | ≤-25dBm | |
| Fo± 0.6MHz | ≤-35dBm | ||
| Fo± 1MHz | ≤-48dBm | ||
| Imujade ti o buruju | 9KHz ~ 150KHz≤-36dBm/10KHz | ||
| 150KHz ~ 30MHz≤-36dBm/100KHz | |||
| 30MHz ~ 1GHz≤-36dBm/100KHz | |||
| 1GHz-12.75GHz≤-30dBm/1MKHz | |||
| Noise Figure | ≤5dB | ||
| I/O Ikolu | 50Ω | ||
| RF Asopọmọra | N-Iru (Obirin) | ||
