Specialize in Signal Repeater & Jammer R&D and manufacturing since 2006
Judging isolation sufficiency for a mobile signal repeater installation is crucial to avoid interference with cell towers and ensure proper functionality .here's how to assess it :
Understanding isolation :
Isolation refers to the ability of the repeater system( indoor antenna and outdoor antenna ) to prevent the amplified signal from leaking back to the donor cell tower ( outside signal source ) .
Inadequate isolation leads to the repeater's amplified signal overpowering the cell tower's signal within its range . causing interference and discrupting service for nearby users .
Methods to evaluate isolation :
1-Signal strength measurements :
Use a signal strength meter to measure the donor cell tower's signal strength outdoors ( at the location of the outdoor antenna ) and indoors ( where the repeater will be installed )
The difference between those readings (outdoor -indoor ) should be at least 20db (decibel) for good isolation .higher db differences indicate better isolation .
2-Site surveys by professionals :
Consider hiring a qualified installer who can conduct a site servey using specialized equipment .
This survey will measure signal strength ,identify potential interference sources ,and recommend the optimal placement of antennas for sufficient isolation .
Additional tips :
Frequency selection : choose a repeater that operates on a different freqeuncy band compared to the dominant cell tower signal to minimize interference .
Cable quality : use high-quality ,low-loss cables between the antennas and the repeater to minimize signal degradation ,which can affect isolation .
Directional antennas : in some cases ,using directional antennas for the outdoor unit can help focus the signal in the desired direction and improve isolation .
Remember : legal regulations regarding mobile signal repeater usage vary by country .ensure you comply with local regulations before installation .
Consulting a professional installer is highly recommended for proper assessment and installation to guarantee sufficient isolation and avoid potential service distruptions .
Tel: +86-757-83308238,13715513766
E-mail: info@amplitec.cn
Address: 4th Floor, 4th Building, No. 60 of the Langbao West Road, Chancheng District, Foshan City, Guangdong, China. 528000