GPS L1 ; China Beidou B1 ; 

European Galileo, Japanese QSZZ, and Indian IRNSS with center frequencies of 1575.42MHz 

For occassions :
1、GPS product production :
   Ok to cover for factory's production line when produce a gps product ,for testing material ,finished product and so on 

 2、GPS labortory :  
   Perfect solution for GPS test center or labortory where there is weak gps signal or no signal at all 。

 3、GPS product show :
   Usually in an exibition show ,where does not have gps signal too,Solution for it .

Packing content ：
repeater x 1 
power adapter x 1