Ko te iDEN/TETRA 800MHz +27dBm Off-air BDA (Bi–Directional Amplifier) he whakanui tohu RF e whakamahia ana hei whakapai ake i nga korero reo irirangi i roto i nga waahi kei reira te tohu reo irirangi.
Ko te punaha Kingtone Repeaters i hangaia hei whakaoti rapanga o te tohu pūkoro ngoikore, he iti ake te utu i te taapiri i te Teihana Turanga (BTS) hou.Ko te mahi matua o te punaha RF Repeaters ko te whiwhi tohu iti-hiko mai i te BTS ma te tuku auau reo irirangi katahi ka tuku i te tohu whakakaha ki nga waahi kaore i te tika te kapinga whatunga.Na ka whakanuia ano te tohu pūkoro ka tukuna atu ki te BTS ma te huarahi rereke.
Matua Ngā āhuatanga
1,Paerangi teitei PA;Te whiwhinga punaha teitei ;
2, Hangarau ALC mohio;
3,Katoa te taarua me te wehenga teitei mai i te hono whakarunga ki te hono whakararo;
4, Mahi Aunoa te mahi watea;
5, Hangarau whakauru me te mahi pono;
6 , Aroturuki rohe me te mamao (kwhiria) me te whakaoho hapa aunoa & te mana mamao;
7, Te hoahoa huarere mo te whakaurunga o nga rangi katoa;
HangarauCal Whakatakotoranga
Items | Whakamatau Tikanga | Specification | Meno | ||
Uplwaituhi | Rararok | ||||
Auautanga Mahi(MHz) | Auautanga Ingoa | 806 – 821MHz | 851-866MHz | Roopu katoa, roopu iti ranei | |
Aratuku | Roopu ingoa | 15MHz | Ka taea te whirihora i roto i te roopu mahi | ||
Whiwhi(dB) | Te Mana Putanga Ingoa‐5dB | 70±3 | 75±3 | ||
Hiko Putanga (dBm) | GSM tohu whakarereke | +20± 1 | +27± 1 | ||
ALC (dBm) | Tohu Whakauru taapiri 20dB | △Po≤±1 | |||
Pikitia Haruru (dB) | Mahi i roto-roopu (Max. Gain) | ≤5 | |||
Ripple ki roto-roopu (dB) | Te Mana Putanga Ingoa‐5dB | ≤3 | |||
Whakaaetanga Auautanga (ppm) | Te Mana Putanga Ingoa | ≤0.05 | |||
Wā Taroa (tatou) | Mahi i roto-roopu | ≤5 | |||
Whiwhi i te Hipanga Whakatikatika (dB) | Te Mana Putanga Ingoa‐5dB | 1dB | |||
Whiwhi Awhe Whakatikatika(dB) | Te Mana Putanga Ingoa‐5dB | ≥30 | |||
Whiwhi Raina Whakaritea(dB) | 10dB | Te Mana Putanga Ingoa‐5dB | ±1.0 | ||
20dB | Te Mana Putanga Ingoa‐5dB | ±1.0 | |||
30dB | Te Mana Putanga Ingoa‐5dB | ± 1.5 | |||
Inter-whakanekehanga Atenuation(dBc) | Mahi i roto-roopu | ≤―45 | |||
Tukunga Tiaki(dBm) | 9kHz-1GHz | BW:30KHz | ≤‐36 | ≤‐36 | |
1GHz-12.75GHz | BW:30KHz | ≤–30 | ≤–30 | ||
VSWR | Tauranga BS/MS | 1.5 | |||
Tauranga I/O | N- Wahine | ||||
Te aukati | 50ohm | ||||
Te Waahi Mahi | ‐ 25°C ~+55°C | ||||
Haumākū Pātahi | Max.95% | ||||
MTBF | Min.100000 haora |