BJTEK NAVIGATION,INC.https://www.bjnav.com/BJTEK is one of the leader of GPS navigation marine antenna manufacturers, supplier in Taiwan. We providing marine 3G antennas, boat GPS antennas, GSM antennas, marine VHF antennas, external UHF yagi antennas, 2.4 ghz wireless yagi antennas, RFID antennas, SDAR antennas, dvb-t active antennas, and many other combo antennas. High quality, competitive price and excellent profermance, are the primary principles that BJTEK seriously focus on.en-us