Founded in 2006,Shenzhen TOJOIN Communication TechnologyCo.,Ltd.,is a leading supplier on wireless&satellitecommunication test system productss and components.As an integratorin R&D,manufacturing,sales,and service,we offer a range ofprofessional communication test system soluations that are open tocustomization.Our products can be classified into three majorcategories.1.Wireless Communication Test System Products:Shielding box andfilter,Power Splitter,Adapter and Torque Wrench;2.Satellite Communication Test System Products:GPS Simulator,GPSAmplifier,GPS Signal Repeater,GPS Antennas,GPS Power Splitter andBias Tee;3.Microwave Device:Attenuator,DC block,Adapter connector,RF Cableetc.Â