iDEN/TETRA 800MHz +27dBm Off-air BDA (Bi–Directional Amplifier) jẹ ẹya ifihan agbara RF ti a lo lati mu ilọsiwaju awọn ibaraẹnisọrọ redio ni awọn ipo nibiti ifihan redio.
Eto awọn atunṣe Kingtone jẹ apẹrẹ lati yanju awọn iṣoro ti ifihan agbara alagbeka alailagbara, eyiti o din owo pupọ ju fifi Ibusọ Base tuntun kan (BTS) kun.Iṣe akọkọ ti eto Awọn atunso RF ni lati gba ifihan agbara kekere lati BTS nipasẹ gbigbe igbohunsafẹfẹ redio ati lẹhinna tan kaakiri ifihan agbara si awọn agbegbe nibiti agbegbe nẹtiwọọki ko pe.Ati pe ifihan agbara alagbeka tun pọ si ati gbigbe si BTS nipasẹ itọsọna idakeji.
Akọkọ Awọn ẹya ara ẹrọ
1Laini giga PA;Ere eto giga;
2, Imọ-ẹrọ ALC ti oye;
3Duplex ni kikun ati ipinya giga lati ọna asopọ si isalẹ;
4, Isẹ ti o rọrun lati ṣiṣẹ laifọwọyi;
5, Ilana ti a ṣepọ pẹlu iṣẹ igbẹkẹle;
6, Abojuto agbegbe ati latọna jijin (iyan) pẹlu itaniji aṣiṣe aifọwọyi & iṣakoso latọna jijin;
7, Apẹrẹ oju ojo fun fifi sori oju ojo gbogbo;
Imọ-ẹrọcal Awọn pato
| Items | Idanwo Ipo | Specification | Meno | ||
| Uplinki | Downlink | ||||
| Igbohunsafẹfẹ Ṣiṣẹ (MHz) | Igbohunsafẹfẹ ipin | 806 – 821MHz | 851 - 866MHz | Full band tabi iha iye | |
| Bandiwidi | Ẹgbẹ ipin | 15MHz | Le ti wa ni tunto ni iṣẹ band | ||
| Jèrè(dB) | Iforukọsilẹ Agbara-5dB | 70±3 | 75±3 | ||
| Agbara Ijade (dBm) | GSM modulating ifihan agbara | +20± 1 | +27± 1 | ||
| ALC (dBm) | Ifihan agbara titẹ sii ṣafikun 20dB | △Po≤±1 | |||
| Nọmba Ariwo (dB) | Ṣiṣẹ ninu-ẹgbẹ (Max. Gain) | ≤5 | |||
| Ripple ninu-ẹgbẹ́ (dB) | Iforukọsilẹ Agbara-5dB | ≤3 | |||
| Ifarada Igbohunsafẹfẹ (ppm) | Iforukọsilẹ Agbara | ≤0.05 | |||
| Idaduro akoko (wa) | Ṣiṣẹ ninu-ẹgbẹ | ≤5 | |||
| Gba Igbesẹ Iṣatunṣe (dB) | Iforukọsilẹ Agbara-5dB | 1dB | |||
| Jèrè Iwọn Atunse (dB) | Iforukọsilẹ Agbara-5dB | ≥30 | |||
| Gba Onila Adijositabulu(dB) | 10dB | Iforukọsilẹ Agbara-5dB | ±1.0 | ||
| 20dB | Iforukọsilẹ Agbara-5dB | ±1.0 | |||
| 30dB | Iforukọsilẹ Agbara-5dB | ± 1.5 | |||
| Inter-Attenuation awose (dBc) | Ṣiṣẹ ninu-ẹgbẹ | ≤-45 | |||
| Itujade Spurious(dBm) | 9kHz-1 GHz | BW: 30 kHz | ≤-36 | ≤-36 | |
| 1GHz-12.75GHz | BW: 30 kHz | ≤-30 | ≤-30 | ||
| VSWR | BS / MS Port | 1.5 | |||
| Ibudo I/O | N- Obirin | ||||
| Ipalara | 50ohm | ||||
| Awọn iwọn otutu ti nṣiṣẹ | -25°C ~ +55°C | ||||
| Ọriniinitutu ibatan | O pọju.95% | ||||
| MTBF | Min.100000 wakati | ||||
