Original sentence: 5us) and consequently to shorter radius from donor site, where could be repeater used.Because of the celluar network has form principle reduced cell size (depends on the technology and activated features typically X*10km (for standard GSM 35km), urban FDD/TDD network 20km..).. usage of repeater virtually moving user to distance:  radio distance = real distance + (repeater delay)*3.3km  (delay of RF signal in air is 3.3us/km).This feature has negative impact to internal delay (higher delay aprox
Edited sentence: 5us to standart rep.Activating of this feature has negative impact to internal delay (higher delay - plas prox.After reepating you have better (or excelent) coverage but you can't access to network.Also cheap models are equiped by automatic gain reduction in case of poor or weak isolation.Because of the celluar network has form principle reduced cell size (depends on the technology and activated features typically X*10km (for standard GSM 35km), urban FDD/TDD network 20km..).. usage of repeater virtually moving user to bigger distance:  radio distance = real distance + (repeater delay)*3.3km  (delay of RF signal in air is 3.3us/km).It is reason why somehrere with sufficient levels repeater doesnt work.User is from network point of view too far...delay) and consequently to shorter radius from donor site, where could be repeater used