A GPS device is only as good as the antenna it uses. A bad quality antenna might compromise the whole GPS tracking or navigation system, and compared to the effort and cost you might spend uninstalling and repairing the system - buying a good quality GPS antenna is really a no-brainer! So, save your company reputation and choose the right antenna. ARKNAV manufactures a variety of high quality GPS antennas. Because we've been in the business for many years, the low failure rate of our antennas has been proven by our regular customers all over the world. Our antennas are designed to be compatible with any GPS device, and can be used in all kinds of environments. We can provide antennas with any cable length and connector - in large or small quantities. All our GPS antennas are made and tested in our own factory in Taiwan to very strict quality control standards. You are welcome to send your inquiries to us, and we are more than happy to offer a free testing sample to prove our antenna's performance and quality.