Em-trak Transponder GPS Antenna Overview Em-trak Transponder GPS Antenna Price: USD 55.00 This price excludes any applicable sales taxes including VAT. Shipping cost included within the price, subject to a minimum order value of USD400 for em-trak products. VISIT OUR ONLINE STORE Product Code: ET-260-0007 The Em-trak Transponder GPS Antenna is suitable for the em-trak AIS Class A A100 and Class B B100, B300, B330 and B350. It can either be purchase as a replacement or optional external GPS antenna. The Em-trak Transponder GPS Antenna comes with a 10 m RG58 cable and TNC connector.