Specifications;
One. Dieletric antenna
Center frequency 1575.42mhz+/-3 MHz
V. S. W. R 1.5:1
Band width +/-5 MHz
Impendence 50 ohm
Peak gain >3dbic based on 7*7cm ground plane
Gain coverage >-4dbic at -90<0<+90(over 75% volume)
Polarization rhcp

Two. GSM antenna
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

Three. Lna/filter
Lna gain(without cable) 28db typical
Noise figure 1.5db
Filter out band attenuation (f0=1575.42 mhz)
7db min f0+/-20mhz ;
20db min f0+/-50mhz;
30db min f0+/-100mhz
V. S. W. R <2.0
DC voltage 2.7v/3.0v/3.3v/5.0v/3.0v to 5.0v/other
DC current 11ma max

Four. Mechanical
Weight <240 gram
Size @80*13mm
Cable gps----rg174 2meter,5meter long or other
Gsm---rg174 2meter,5meter long or other
Connector
GPS:
Sma/smb/smc/bnc/fme/tnc/mcx/mmcxor other
GSM:
Sma/smb/smc/bnc/fme/tnc/mcx/mmcx or other.
Mounting adhesive/magnetic/screw mounting.
Housing black

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