Description :
            Model no vs, Sizes 
R29: 44 x 20mm
R37: 42 x 42mm
R42: 81 x 21mm
             Specification :
            - Antenna type: PCB embedded internal antenna
 - Frequency ranges: 850/900/1800/1900/2100MHz (GSM Penta Band) VSWR: ≤2.0
 - Impedance: 50Ω (nominal)
 - Normal gain: 0 to 3dBi (depands)
 - Type of radiation: omnidirectional
 - Electrical save: 1/4
 - Connector: MMCX, MCX, SMA, IPEX and more (optional), or soldering end
 - Cable type: RG178, RG316, 1.13 and more (optional)
 - Customized cable lengths are accepted
 - Made in Taiwan OEM and ODM specifications are welcome very much
 - Made in Taiwan
 - Compliant with RoHS Directive