... .Impendance: 50ohm 4.Polarization: RHCP GPS Active Antenna (manufactory),Newest! I Dielectric AntennaCenter Frequency 1575.42MHz ... of Jiaxing, specialize in the communication aerial, telescopic antenna, new high-tech enterprise taking producing, electroplating, studying ... toy factory, radio-tape recorder factory, television factory, cell-phone factory, automobile factory, arts & crafts products factory ...