4glte external antenna gsm-100c electrical properties: 1. frequency band 690~9601710~21702500~2700 mhz 2. nominal impedance 50 ohm 3. polarization vertical 4. return loss please see data-1 5. v.s.w.r 2.2:1 6. note: gain includes the cable loss mechanical properties: 1. antenna type base antenna 2. antenna cover fiber 3. connector type n (female) 4. antenna dimensions 756mm ± 20 5. antenna color white 6. operating temperature range -20°c~+60°c 7. storage temperature