Specifications; 
Center frequency 824mhz~894mhz(amps)
880 mhz~960mhz(gsm)
1710mhz~1990mhz
V. S. W. R 2.0:1
Impendence 50 ohm
Typical gain 2dbi+/-1db@850mhz; 2dbi+/-1db@900mhz
1dbi+/-1db@1800mhz; 1dbi+/-1db@1800mhz

 V. S. W. R <2.0 
Weight <200 gram
Size :83×15mm
GSM---RG174 2meter,5meter long or other
Connector:SMA/SMB/BNC/TNC/MCX/MMCX/SMC/FME or other.
Mounting:screw mounting.
Housing:black or white or others

Five. Environmental
Working temp. -40~+85
Storage temp. -45~+100
Vibration sine sweep 1g(0-p)10~50~10hz each axis
Humidity humidity 95%~100%rh
Weatherproof 100% waterproof